Dental Anatomy Final Unedited
Which of the following is/are benefits obtained from the form of embrasures? Provide a spillway for food during mastication Prevent food from being forced through the contact area A and B A only
A and B
Which of the following is/are benefits to proximal contact areas between adjacent teeth? Stabilization of the dental arches Prevent food impaction A and B B only
A and B
In comparison with their counterparts in the permanent dentition, which of the following is true regarding the primary dentition? Primary teeth are whiter in color. Primary teeth have more prominent cervical ridges. A and B only Primary teeth have thicker enamel. A, B and D
A and B only
Which of the following is true regarding pulp cavities of maxillary central incisors? The chamber is wider mesiodistally than faciolingually The chamber is widest in the cervical region faciolingually A and B only Typically, two root canals will be present A, B and D
A and B only
Which of the following is true regarding the pulp cavities of mandibular central incisors? They typically demonstrate a single root canal Two root canals can be found quite frequently A and B only The pulp chamber is wider mesiodistally than faciolingually A, B and D
A and B only
Masticatory functions of the primary maxillary canine include which of the following? Punching through food Tearing food A and B only Apprehending food material A, B and D
A, B and D
Which of the following is true regarding the mandibular first molar? It typically has two roots and three root canals It less frequently has two roots and four root canals A and B only nfrequently, it has a fourth root canal in a separate root A, B and D
A, B and D
Which of the following is true regarding the pulp cavities of maxillary first premolars? They are wider faciolingually than mesiodistally They typically have two pulp horns A and B only They commonly have two root canals A, B and D
A, B and D
In the primary dentition the second molars are represented by which letters: A,B,I,J A,J,K,T B,I,L,S B,C,H,I
A,B,I,J
The maxillary permanent central incisor has these unique characteristics: Most prominent tooth Mesial CEJ contour is greater than any other tooth Second longest crown length of any other tooth Widest crown of all anterior teeth All of the above
All of the above
The maxillary permanent lateral has these unique characteristics: Most common congenitally missing tooth Second most variable tooth form Lingual surface is the most concave of all incisors All of the above None of the above
All of the above
Which of the following is true about premolars? They follow canines and precede molars There are usually four of them in each arch They are located posteriorly in the arch All of the above None of the above
All of the above
Loss of proximal contact could result in (a) drifting of teeth. (b) food impaction. (c) bone loss. (d) damage to the interdental papilla (e) unfavorable occlusion (a),(b),(c) ,and (e)) (a),(c), and (e) (b), (c) ,and (e) (d) and (e) All the above
All the above
Which of the following represents the name of the bone of the tooth socket that firmly fixes each tooth root? Alveolar process Alveolus Cementoenamel junction Dentinoenamel junction
Alveolus
Which of the following terms refers to opposing jaws of unequal size? Bunodont Isognathus Haplodont Anisognathous
Anisognathous
Which of the following animal groups has a dentition most similar to humans? Canines Anthropoid apes Equines Bovines
Anthropoid apes
At what age is calcification of the mandibular first molar first evident? At birth 6 to 9 months 1 year 2 years
At birth
Calcification of the maxillary first molar begins at what age? At birth 6 months 1 year 2 years
At birth
The maxillary primary first molars are represented by letters: B and I A and J C and H None of the above
B and I
Which of the following contact areas will be shifted the most facially relative to the center of the crown when viewed from the incisal or occlusal aspect? Between #8 and 9 Between #10 and 11 Between #12 and 13 Between #14 and 15
Between #14 and 15
Which of the following contact areas is least broad in a buccolingual dimension? Between #28 and 29 Between #29 and 30 Between #30 and 31 All are equal in width buccolingually
Between #30 and 31
What type of temporomandibular symptoms is this patient experiencing? Intracapsular Extracapsular Both intracapsular and extra capsular Neither intracapsular or extra capsular
Both intracapsular and extra capsular
The teeth of children as well as young people are more sensitive than the teeth of older people to thermal change and dental operative procedures. The pulp is relatively large in primary teeth as well as in young permanent teeth. Both statements are True First statement is true, the second statement is false The first statement is false, the second statement is true Both statements are false
Both statements are True
The primary maxillary central incisor has a mesiodistal length greater than the cervicoincisal length. The primary maxillary lateral incisor has a cervicoincisal length greater than the mesiodistal length. Both statements are true First statement is true, the second statement is false The first statement is false, the second statement is true Both statements are false
Both statements are true
The maxillary 1st molar is the largest tooth in the maxillary arch. Maxillary molars are wider buccolingually than mesiodistally. Both statements are true. Both statements are false. First statement is true, second statement is false. First statement is false, second statement is true.
Both statements are true.
Which of the following teeth is known as a "cornerstone" of the dental arch? Central incisor Canine First molar Third molar
Canine
The transverse groove of the oblique ridge of a permanent maxillary molar connects which of the following pits? Distal and distofacial Central and distofacial Central and facial Central and distal Central and mesial Central and lingual
Central and distal
Which of the following dimensions is greatest for the mandibular lateral incisor? Crown, mesiodistally Crown, mesiodistally at cervix Crown, labiolingually Crown, labiolingually at cervix
Crown, labiolingually
Which of the following dimensions is greatest for the maxillary canine? Crown, labiolingually Crown, mesiodistally Crown, mesiodistally at cervix Crown, labiolingually at cervix
Crown, labiolingually
Which of the following dimensions is greatest for the mandibular central incisor? Crown, mesiodistally Crown, mesiodistally at cervix Crown, labiolingually Correct Crown, labiolingually at cervix
Crown, labiolingually Correct
Which of the following anatomical features is not found on a maxillary incisor? Marginal ridge Incisal edge Lingual fossa Cusp ridge
Cusp ridge
The dental pulp's primary function is the formation of which of the following? Enamel Dentin Cementum Periodontal Ligament
Dentin
The majority of the tooth is made up of this tissue. Enamel Dentin Pulp Cementum
Dentin
The cementoenamel junction (CEJ) has all but which of the following as potential junctional schemes? Enamel overlapping cementum End to end Cementum overlapping enamel Dentin overlapping enamel and cementum
Dentin overlapping enamel and cementum
Which of the following is true regarding the primary maxillary central incisor? Developmental lines are quite prominent The mesiodistal diameter of the crown is wider than the cervicoinsisal length a & b only The cingulum tends to divide the lingual aspect into incisal and cervical fossae a, b & d
Developmental lines are quite prominent
When the primary maxillary canine is observed from an incisal view, which of the following best represents its shape? Round Triangular Diamond Square
Diamond
Which cusp ridge is longer on a maxillary canine? Mesial Distal They are equal in length The maxillary canine does not have any cusp ridges
Distal
Which of the following is not a line angle of the anterior teeth? Mesiolabial Distolingual Distolabial Disto-Occlusal
Disto-Occlusal
Which one of the following is not a line angle found on anterior teeth? Mesiolabial Linguoincisal Disto-occusal Distoincisal Distolabial
Disto-occusal
When extracting a primary incisor in which the root has been partially resorbed because of pressure from its developing succedaneous tooth, which aspect of the remaining primary root will usually be the longest and attached most securely to the gingiva? Distal Facial Medial Lingual
Facial
Which tooth surface(s) face(s) the lips or cheeks? Facial, Distal, Occlusal Buccal, occlusal, labial No answer text provided. No answer text provided.
Facial, Distal, Occlusal
Generally, contact areas between posterior teeth are located in which directions from the center of the proximal surface? Facially and occlusally Facially and gingival Lingually and gingival Lingually and occlusally
Facially and occlusally
An ideal/treatment occlusion should always be established whenever signs of malocclusion are present. True False
False
Both the mandibular first and second molars possess two buccal grooves, the mesiobuccal and distobuccal developmental grooves. True False
False
Each tooth in the dental arch has two antagonists in the opposing arc True False
False
If a mandibular incisor is viewed from the incisal aspect and a line is drawn bisecting the root, the incisal ridge will be shifted labial to this line. True False
False
Immediate treatment equilibrating the premature tooth contacts should be provided. True False
False
It is common to find a fifth cusp on both the first and second maxillary molars. True False
False
The contact areas between the mandibular central and lateral incisors tend to be long and broad in an inciso-cervical dimension. Therefore the contact tends to be in the junction of the incisal and middle third of these teeth. True False
False
The distal contact area of the mandibular canine is more cervical than the distal contact area of the maxillary canine. True False No answer text provided. No answer text provided.
False
The form of teeth has little to do with their individual function. True False
False
Which of the following permanent teeth tend to show evidence of calcification at birth? Central incisors Canines First molar Second molar
First molar
Which of the following permanent teeth tend to show evidence of calcification at birth? Central incisors Canines First molars Second molars
First molars
The crowns of maxillary primary first molars resemble the crowns of which one of the following maxillary permanent teeth? First premolars Second premolars First molars Second molars
First premolars
The notation for the primary maxillary left lateral incisor is which of the following according to the Universal system? D G E F
G
From the occlusal aspect, the maxillary first premolar resembles which of the following shapes? Rhombus Hexagon Trapezoid Rectangle
Hexagon
The contact area of the mandibular central incisors on both the mesial and distal is located in which third of the crown? Incisal Middle Cervical Distal
Incisal
The order of eruption in primary teeth generally is in this sequence Incisors,canines,first molars, second molars Incisors,first molars, canines, second molars incisors, first molars,canines,second molars
Incisors,first molars, canines, second molars
Which of the following terms best describes a triangular space between teeth normally filled with gingival tissue? Interproximal space Proximal contact area Proximal contact point Embrasure
Interproximal space
The contact area between the maxillary lateral incisor and canine is located in which third of the crown when viewed from the incisal aspect? Labial Middle Lingual
Labial
With anterior teeth, what term is specific to canines? Labial ridge Lingual fossa Mamelons Cingulum
Labial ridge
Which surfaces cannot be seen from the lingual view of a mandibular first premolar? Mesial surface of the crown Distal surface of the crown Occlusal surface Labial surface of the crown Mesial surface of the root
Labial surface of the crown
Which of the following is formed by the junction of two surfaces and derives its name from the combination of the two surfaces that join? Point angle Sulcus Line angle Marginal ridge
Line angle
Which is generally the longest root on the maxillary first molar? a. mesiobuccal b. distobuccal c. lingual d. distolingual
Lingual
Which root of the maxillary first molar tends to be the longest? Mesiobuccal Distobuccal Lingual All tend to be the same length
Lingual
Which of the following embrasures tends to be wider when viewed from the incisal aspect? Facial embrasure between #8 and 9 Lingual embrasure between #8 and 9 They are equal in width
Lingual embrasure between #8 and 9
The cusp of Carabelli, if present on a maxillary first molar, is found on which of the following surfaces? Lingual of distolingual cusp Lingual of mesiolingual cusp Buccal of mesiobuccal cusp Buccal of distobuccal cusp
Lingual of mesiolingual cusp
Which of the following best represents the structure on the crown of the maxillary canine which normally lies directly distal to the mesiolingual fossa? Lingual ridge Distal fossa Distolingual fossa Distal marginal ridge Mesial marginal ridge
Lingual ridge
A __________ is any one of the three rounded protuberances found on the incisal ridges of newly erupted incisor teeth. Lobe Mamelon Cusp Supplemental groove
Mamelon
Which of the following teeth is most likely to have a bifurcated root? Mandibular central incisor Maxillary central incisor Mandibular canine Maxillary canine
Mandibular canine
48. Which of the primary teeth is usually bilaterally symmetrical when viewed labially? Mandibular central incisor Maxillary central incisor Maxillary lateral incisor Mandibular lateral incisor Mandibular canine
Mandibular central incisor
Which of the following permanent roots is thin meisodistally, wide labiolingually, and concave on both mesial and distal surfaces? Maxillary central incisor Mandibular central incisor Mandibular second premolar Facial root of a maxillary first premolar Lingual root of a maxillary first premolar
Mandibular central incisor
Which of the premolars is usually the smallest? Maxillary first Maxillary second Mandibular first Mandibular second
Mandibular first
Which of the following primary teeth has a crown unlike that of any permanent tooth? Maxillary first molar Maxillary second molar Mandibular first molar Mandibular second molar
Mandibular first molar
Which of the following primary teeth varies the most from any tooth in the primary or permanent dentition? Maxillary central incisor Mandibular first molar Mandibular canine Maxillary second molar
Mandibular first molar
Which of the following teeth is not a succedaneous tooth? Maxillary lateral incisor Mandibular first molar Mandibular first premolar Maxillary second premolar
Mandibular first molar
Which of the following teeth likely will have the largest cervico-occlusal length of the crown? Mandibular first molar Mandibular second molar Mandibular third molar All have the same length
Mandibular first molar
The mesial marginal ridge of most posterior teeth is located more occlusally than is the distal marginal ridge. Which tooth is most likely to be the exception? Maxillary first premolar Maxillary second premolar Mandibular first premolar Mandibular second premolar
Mandibular first premolar
The fifth cusp (cusp of Carabelli) is found on which tooth and which cusp? Maxillary 1st molar,Mesiobuccal Maxillary 1st molar, Mesiolingual Maxillary 2nd molar, Mesiolingual Maxillary 2nd molar, Distobuccal
Maxillary 1st molar, Mesiolingual
In the bite mark made by the human dentition, which of the following teeth makes a large rectangular mark? Mandibular incisor Maxillary canine Mandibular molar Maxillary central incisor
Maxillary central incisor
In the bite mark made by the human dentition, which of the following teeth makes a large rectangular mark? Maxillary central incisor Maxillary canine Mandibular incisor Mandibular molar
Maxillary central incisor
"Shovel-shaped" is a term that can be used to describe which of the following teeth? Maxillary central incisors Maxillary molars Mandibular canines Mandibular first premolars
Maxillary central incisors
Which of the following primary teeth varies the most from any tooth in the permanent dentition? Maxillary central incisor Mandibular canine Maxillary second molar Maxillary first molar
Maxillary first molar
Which of the following teeth is most likely to have a fifth cusp? Maxillary first molar Maxillary second molar Maxillary third molar All of the above usually have a fifth cusp
Maxillary first molar
Which one of the following primary teeth has a crown unlike that of any permanent tooth? Maxillary first molar Maxillary second molar Mandibular first molar Mandibular second molar
Maxillary first molar
49. The marginal ridges are more prominent on the lingual surface of which of the following incisors? Maxillary central Mandibular central Maxillary lateral mandibular lateral
Maxillary lateral
Which of the following teeth has a variant in form known as being "peg-shaped"? Maxillary central incisor Maxillary lateral incisor Mandibular central incisor Mandibular lateral incisor
Maxillary lateral incisor
Which of the following teeth has the smallest mesiodistal dimension? Maxillary lateral incisor Maxillary lateral incisor Mandibular canine Mandibular first premolar
Maxillary lateral incisor
Assuming a normal eruption sequence, which of the following teeth would be last to erupt? Mandibular first premolars Maxillary permanent laterals Mandibular permanent laterals Maxillary permanent canines Mandibular permanent canines
Maxillary permanent canines
Which of the following primary molars is most likely to possess a fifth cusp, or "tubercle of Carabelli"? Maxillary first molar Maxillary second molar Mandibular first molar Mandibular second molar
Maxillary second molar
Which of the following teeth has a form that is often referred to as "heart-shaped"? Maxillary first molar Maxillary second molar Mandibular first molar Mandibular second molar
Maxillary second molar
Which of the following teeth might posses three cusps? Maxillary second premolar and maxillary first molar Maxillary second premolar and mandibular first premolar molar Maxillary first molar and mandibular second molar Maxillary second molar and mandibular first molar Maxillary second molar and mandibular second premolar
Maxillary second molar and mandibular second premolar
Which of the following teeth tends to show the most variation in development? Maxillary third molar Mandibular second molar Maxillary canine Mandibular lateral incisor
Maxillary third molar
All of the following should be documented in the dental record, but which of the following is not likely to be of future help in forensic identification of a deceased person? Medication history Dental anomalies Existing restorations Missing teeth
Medication history
All of the following should be documented in the dental record, but which of the following is not likely to be of future help in forensic identification of a deceased person? Medication history Dental anomalies Existing restorations Missing teeth
Medication history
50. From which view are only two roots visible on a maxillary first molar? Mesial Distal Buccal Lingually, the cervical line slopes mesially. Occlusal
Mesial
A deep developmental depression exists on which of the following surfaces of the maxillary first premolar? Buccal Lingual Mesial Distal
Mesial
If you were observing the faciolingual length of a tooth, what surface(s) could you be viewing? Mesial No answer text provided. No answer text provided. No answer text provided.
Mesial
The greatest contours of the gingival attachments occur on which of the following? Distal surface of anterior teeth Distal surface of posterior teeth Mesial surface of anterior teeth Mesial surface of posterior teeth
Mesial surface of anterior teeth
Which of the following cusps of the mandibular first molar is the largest when viewed from the occlusal? Mesiobuccal Mesiolingual Distolingual Distobuccal
Mesiobuccal
Which of the following cusps of the mandibular first molar is the widest when viewed from the buccal aspect? Mesiobuccal Distobuccal Distal All are of equal size
Mesiobuccal
Which cusp of the maxillary first molar is the largest and most well formed? Mesiobuccal Mesiolingual Distolingual Distobuccal
Mesiolingual
Which of the following cusps of the primary mandibular first molar is seen as the largest and best developed of all its cusps? Distobuccal Mesiobuccal Mesiolingual Distolingual
Mesiolingual
The contact area on the distal of the maxillary canine is located in which of the following areas? Incisal third Middle third Cervical third None of the above
Middle third
A _________ is a pinpoint depression located at the junction of developmental grooves. Pit Fossa Sulcus Cusp
Pit
Which of the following is not a characteristic of the primary maxillary central incisor? Mesiodistal diameter is greater than the cervicoincisal length Smooth labial surface Nearly straight incisal edge Poorly developed cingulum
Poorly developed cingulum
The cusp of Carabelli occurs with sufficient frequency to be considered normal in which of the following molars? Primary maxillary first Primary maxillary second Mandibular first Maxillary second
Primary maxillary second
In comparison with their counterparts in the permanent dentition, which of the following is true regarding the primary dentition? Primary teeth are whiter in color Primary teeth have more prominent cervical ridges Primary teeth have thinner enamel All of the above None of the above
Primary teeth are whiter in color
Which of the following terms best describes where adjacent teeth touch on the mesial and distal surfaces? Interproximal space Proximal contact area Proximal contact points Embrasure
Proximal contact area
Which of the following is not one of the six characteristics first identified by Gustafson in 1950 that aid in the estimation of age of an adult? Attrition of the occlusal or incisal edges Amount of secondary dentin formation Quantity of restorations Deposition of apical cementum
Quantity of restorations
From the occlusal view, the primary mandibular second molar most closely resembles which of the following shapes? Rhombus Triangle Square Rectangle
Rectangle
From an occlusal view, the primary maxillary second molar appears to have what overall shape? Triangle Diamond Square Rhombus
Rhombus
When viewed from the mesial or distal, the outline of the mandibular posterior teeth may be described as which of the following shapes? Triangle Trapezoid Rhombus None of the above
Rhombus
The maxillary lateral incisor is smaller than the maxillary central incisor in all dimensions except which of the following? Crown length Root length Mesiodistal diameter of crow Curvature of the mesial cervical line
Root length
Which of the following primary mandibular teeth tends to have the longest average overall length in mm? Lateral incisor Canine First molar Second molar
Second molar
Which of the following is not an important factor in the initiation and development of an abnormal occlusion? Premature loss of primary teeth Retention of primary teeth Insufficient space Sequenced loss of primary teeth
Sequenced loss of primary teeth
Which of the following is not a geometric figure that can be used to describe the outline of any tooth as seen from all aspects except the incisal or occlusal? Triangle Trapezoid Rhombus Square
Square
Statement 1: The cusp tip of the primary maxillary canine is located mesial to the center of the crown. Statement 2: As a result, the distal cusp slope is longer than the mesial cusp slope. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 and 2 are false as written.
Statement 1: After normal wear has taken place, the incisal surfaces of the mandibular incisors show a labial inclination. Statement 2: After normal wear has taken place, the incisal surfaces of the maxillary incisors show a lingual inclination. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false Statement 1 is false while Statement 2 is true as written Statement 1 and 2 are false as written
Statement 1 and 2 are true as written.
Statement 1: Groups of teeth develop at specific rates so that the sequence of eruption and emergence of the primary teeth is well defined with few deviations. Statement 2: For the individual child, considerable variation in the times of emergence of the primary dentition may occur. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 and 2 are true as written.
Statement 1: The form of the teeth and their arrangement are related to incising or crushing food without causing damage to supporting structures. Statement 2: Some of the form must also relate to that of the jaws and face and to occlusal forces that dictate various angles and positions within the arches. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 and 2 are true as written.
Statement 1: The normal permanent dentition consists of 32 teeth. Statement 2: Completion of the development of the permanent teeth usually occurs between 18 to 25 years of age. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 and 2 are true as written.
Statement 1: There is often times not enough space in the mandibular arch for the third molars to erupt. Statement 2: As a result, partial eruption of the mandibular third molar can lead to both periodontal defects or root resorption at the distal of the second molar. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 and 2 are true as written.
Statement 1: For primary teeth, the enamel tends to be relatively thick with inconsistent depth. Statement 2: For primary teeth, the dentin thickness between the pulp chambers and the enamel is limited, especially for certain teeth. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 is false while Statement 2 is true as written.
Statement 1: DNA may be used in the identification of a deceased person. Statement 2: However, teeth provide little to no source of DNA that may be used for identification purposes. Statement 1 and 2 are true as written Statement 1 is true while Statement 2 is false as written Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written
Statement 1 is true while Statement 2 is false as written
Statement 1: The root of the maxillary lateral incisor is approximately 1.5× its crown length. Statement 2: The root of the maxillary lateral incisor most often curves to the lingual in the apical third. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 is true while Statement 2 is false as written
Statement 1: The contact area on the mesial of the maxillary central incisors is in the incisal third of the tooth. Statement 2: As a result, the incisal embrasure between the two maxillary central incisors is broad and well defined. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 is true while Statement 2 is false as written.
Statement 1: When viewed from the occlusal, the maxillary first molar resembles a rhombus. Statement 2: When viewed from the occlusal, the mesiobuccal and distolingual appear as obtuse angles while the mesiolingual and distobuccal appear as acute angles. Statement 1 and 2 are true as written. Statement 1 is true while Statement 2 is false as written. Statement 1 is false while Statement 2 is true as written. Statement 1 and 2 are false as written.
Statement 1 is true while Statement 2 is false as written.
When viewed from the buccal aspect, an identifying characteristic of the maxillary first premolar is which of the following? Mesial and distal cusp slopes of equal lengths The Mesial cusp slope is longer than the distal cusp slope The distal use slope is longer the the mesial cusp slope The buccal cusp tip is located toward the mesial aspect of the crown
The Mesial cusp slope is longer than the distal cusp slope
A hockey player comes into your office with his upper anterior teeth in his hand. How can you distinguish the right canine from the left? The root always curves to the distal in the apical one-third The distal cusp ridge is longer than the medial cusp ridge Labially, the cusp tip is placed to a line which bisects the crown and root The distal surface is straighter than the mesial surface
The distal cusp ridge is longer than the medial cusp ridge
Which of the following is not a feature that distinguishes the maxillary lateral incisor from the maxillary central incisor? Its cervicoincisal length is greater than its mesiodistal width. The distoincisal angles of the crown are less rounded. The root is much longer in proportion to its crown. The crown in smaller in all dimensions.
The distoincisal angles of the crown are less rounded.
Which of the following statements is applicable to both the maxillary first premolar and the mandibular second premolar? One root is present The number of cusps is relatively constant The crown is concave on its medial surface The root is extremely concave on the medial aspect The lingual cusp is lower in height than the facial cusp Occlusal anatomy may exhibit a high degree of variation There may be a grove on the lingual surface of the crown
The lingual cusp is lower in height than the facial cusp
when viewed from the facial aspect, an identifying characteristic of maxillary first premolars is which of the following? Mesial and distal cusp slopes of equal length The mesial cusp slope is longer than the distal cusp slope The distal cusp slope is longer than the medial cusp slope The buccal cusp is located towards the mesial aspect of the crown None of the above
The mesial cusp slope is longer than the distal cusp slope
Which of the following is true regarding the primary maxillary central incisor? Developmental lines are quite prominent. The mesiodistal diameter of the crown is wider than the cervicoincisal length. A and B only The cingulum tends to divide the lingual aspect into incisal and cervical fossae. A, B and D
The mesiodistal diameter of the crown is wider than the cervicoincisal length.
Which of the following is NOT a characteristic of the maxillary first premolar? Central grove runs in a mesial-distal direction The mesial contact area is toward the mesiobuccal line angle The mesial surface has a deep concavity on the crown that extends to and includes the cervical line The occlusal surface has a wrinkled appearance because of accessory grooves arising from the central groove
The occlusal surface has a wrinkled appearance because of accessory grooves arising from the central groove
From the buccal view, how many roots can be seen on the Maxillary first molar? One Two Three Four
Three
The maxillary primary first molar has how many roots? One Two Three Four Five
Three
When viewed from the facial or lingual, the outline of all teeth may be described as which of the following shapes? Triangle Trapezoid Rhombus None of the above
Trapezoid
When viewed from the facial or lingual, the outline of all teeth may be described as which of the following shapes? Triangle Trapezoid Rhombus None of the above
Trapezoid
Which of the following best represents the outline of the mandibular first molar when viewed from the buccal aspect? Rectangular Trapezoidal Rhomboid Oval
Trapezoidal
From the distal view, the distal contact area of the mandibular second molar is usually found at the midpoint between the cervical line and the marginal ridge. True False
True
It is possible to draw a straight line through the contact areas of the mandibular second premolar and the three molars. True False
True
Teeth that have two antagonists in the opposing arch benefit during the loss of one of those antagonists because the other will limit extrusion and help stabilize the remaining teeth. True False
True
The curvature of the CEJ on the distal of a mandibular central incisor is about 1 mm less than the curvature on the mesial. True False
True
The distal contact of the mandibular first molar is actually on the distal surface of the distal cusp. True False
True
The follicles of the developing incisors and canines are in a position lingual to the deciduous roots . True False
True
The maxillary permanent central incisor crown has a mesiodistal dimension greater than the faciolingual dimension. True False
True
The mixed dentition period begins when the primary teeth begin to emerge and lasts for about six years True False
True
The rhomboid outline of the mandibular posterior teeth inclines the crowns to the lingual. True False
True
Unlike the maxillary first premolar, the pattern of grooves on the occlusal surface of the maxillary second premolar is more irregular and gives the tooth a "wrinkled" appearance. True False
True
Unlike the maxillary first premolar, the pattern of grooves on the occlusal surface of the maxillary second premolar is more irregular and gives the tooth a "wrinkled" appearance. True False
True
he maxillary first premolar generally has ___ pulp horns? One Two Three No answer text provided.
Two
If a patient and dentist elect to extract tooth #30, sectioning of the tooth will be required. The dentist should be aware of which of the furcations on this tooth? One Two- mesial and distal Two- buccal and lingual Three- mesial, distal, and buccal Three- buccal, mesial, and lingual
Two- buccal and lingual
Anterior teeth have six point angles and posterior teeth have eight point angles. All teeth have four line angles. a Both statements are true b The first statement is true and the second is false c The first statement is false and the second is true d Both statements are false
a Both statements are true
The occlusal form of the mandibular second premolar is highly variable. Which of the following are the most common forms of this tooth? Two cusps- buccal and lingual Three cusps- buccal, mesiolingual, and distoliwngual Two cusps- mesial and distal a and b only b,and c only
a and b only
A partial absence of bone in the form of a cleft, over the root of a tooth is called: a fenestration a dehiscence gingival recession interproximal spaces
a dehiscence
Compared with its permanent successors, a primary incisor has more rounded incisor edges. more pronounced marginal ridges. a shorter root length than crown length a wider mesiodistal diameter than cervicoincisal length of crown.
a wider mesiodistal diameter than cervicoincisal length of crown.
43. The permanent mandibular first molar typically presents which of the following developmental grooves? (a) Mesiobuccal (b) Distobuccal (c) Distal (d) Mesiolingual a and b only a, b and c a, b and d a, c and d
a, b and d
Teeth numbers 7,8,9,10, could have what surfaces facial lingual labial buccal a and b only a, b, and c only all of the above
a, b, and c only
Development of primary dentition: begins at 6 weeks in utero calcification starts at 4-6 months (18 weeks) in utero apices are complete 1-2 years after eruption (by age 3) a and c b and c a,b, and c
a,b, and c
With maxillary incisors: The facial and lingual CEJ's curve apically. The mesial and distal CEJ's curve coronally a. Both statements are true b. First statement is true, the second is false c. First statement is false, the second statement is true d. Both statements are false
a. Both statements are true
Which of the following grooves radiate out from the central fossa of a mandibular second molar? a. Central b. Mesiobuccal c. Distobuccal d. Lingual e. Buccal f. d & e
a. Central
A trapezoid describes the geometric outline of all posterior teeth when viewed from which of the following? a. Facial/labial b. Lingual c.Occlusal a and b a,b,and c
a. Facial/labial
On the crown of the primary maxillary first molar, the mesial surface normally... a. Is larger than the distal surface of the same tooth. b. Exhibits a concave outline. c. Is wider occlusocervically than buccolingually. d. Exhibits a straight cervical line. e. Is wider buccolingually at the occlusal table than at the cervical third.
a. Is larger than the distal surface of the same tooth
Which of the following permanent molars has the largest mesiodistal measurement of its crown? a. Maxillary first b. Mandibular first c. Maxillary second d. Mandibular second
a. Maxillary first
Which of the following teeth has the greatest cervico-occlusal crown height? a. Maxillary first premolar b. Mandibular second premolar c. Maxillary first molar d. Mandibular second molar e. Maxillary second molar
a. Maxillary first premolar
Which tooth has a depression in the cervical one-third on the mesial side of the crown and root? a. Maxillary first premolar b. Maxillary second premolar c. Mandibular first premolar d. Mandibular second premolar
a. Maxillary first premolar
When viewed from the facial, an identifying characteristic of the maxillary first premolar is which of the following? a. Mesial and distal cusp slopes of equal length b. Mesial cusp slope is longer than the distal cusp slope. c. Diostal cusp slope is longer than the medial cusp slope. d. Buccal cusp tip is located toward the mesial aspect of the crown. e. None of the above
a. Mesial and distal cusp slopes of equal length
Which fossae are found on a Mandibular first molar? a. Mesial triangular b. Distal triangular c. Buccal d. Lingual e. Central f. a, b & e
a. Mesial triangular
Which of the following primary molars closely resembles a permanent first molar? a. Primary maxillary first molar b. Primary maxillary second molar c. Primary mandibular first molar d. Primary mandibular second molar e. b & d
a. Primary maxillary first molar
Which correctly describes the haplodont dentition? a. Single cone teeth b. Three cusps in a line c. A triangle of 3 cusps d. A quadrangle of 4 cusps e. None of the above
a. Single cone teeth
When viewed from the occlusal, which of the following is true regarding the maxillary first molar? a. The crown will be wider on the mesial aspect than the distal aspect b. The crown will be wider on the lingual aspect than the buccal aspect c. a & b only d. The crown may show four or five cusps e. a, b & d
a. The crown will be wider on the mesial aspect than the distal aspect
Which of the following is true regarding the mandibular second molar as compared with the first molar? a. There are four rather than five cusps b. The distobuccal developmental groove is absent c. a & b only d. Two roots are present, mesial and distal e. a, b & d
a. There are four rather than five cusps
Which of the following is true regarding maxillary and mandibular primary first molars? a. They closely resemble their permanent counterparts b. They both have three roots c. a & b only d. Their form varies from the form of their permanent counterparts e. b & d only
a. They closely resemble their permanent counterparts
When looking at the facial or lingual aspect of all anterior teeth, they have a: a. Trapezoidal outline b. Triangular outline c. Rhomboidal outline d. Square outline
a. Trapezoidal outline
The average mesiodistal width of a permanent maxillary central incisor is 8.5 mm a. True b. False
a. True
What is the function of the ligaments associated with the temporomandibular joint? a. lubricate the joint b. add flexibility to the joint c. prevent joint movement d. stabilize the joint during function and at rest
a. lubricate the joint
When viewed from the medial, an identifying characteristic of the maxillary first premolar crown is: a. the presence of a medial developmental depression. b. a longer lingual cusp compared to the buccal cusp. c. the presence of a mesio-lingual groove. d. a faial crest of contour located in the occlusal third of the crown. e. None of the above.
a. the presence of a medial developmental depression.
The maxillary canine erupts after lateral incisor and first premolar before lateral incisor and first premolar. after first premolar but prior to first premolar after lateral incisor but prior to first premolar
after lateral incisor and first premolar
A hockey player comes into your office holding his friend's right canines (maxillary and mandibular) in his hand. His friend, a lacrosse player, got hit by a ball flying under his mask. Which of the following would you look for in the maxillary canine as compared to the mandibular canine? The maxillary canine is narrower mesiodistally has a more pronounced cingulum is wider mesiodistally has a shorter root a and b b and c a and d
b and c
When viewed from the occlusal, which helps identify the mandibular first premolar? a. Presence of a disto-lingual cusp b. A small indistinct lingual cusp c. Presence of a mesial marginal groove d. Highly sloped distal marginal ridge e. None of the above
b. A small indistinct lingual cusp
Which is/are true regarding curvatures of the maxillary central incisor's cervical line? a. It is a semicircular curve toward the root ape on the labial surface. b. It shows more curvature towards the incisal on the medial surface than the distal surface. c. a and b only d. It is a semicircular curve toward the incisal on the lingual surface. e. a, b and d
b. It shows more curvature towards the incisal on the medial surface than the distal surface.
If you melted a block of ice, could you swim in it? a. Yes b. No No answer text provided. No answer text provided.
b. No
1. Which of the following line angles is LEAST "square"? a.mesioincisal of the mandibular lateral incisor b. distoincisal of the mandibular lateral incisor c.mesioincisal of the mandibular central incisor d. distoincisal of the mandibular central incisor
b. distoincisal of the mandibular lateral incisor
The occlusal geometric shape of the maxillary first premolar is a a. pentagon. b. hexagon. c. octagon. d. rhomboid e. trapazoid
b. hexagon.
The follicles of the developing permanent incisors and canines are generally positioned: a. facial to the primary roots. b. lingual to the primary roots. c. mesial to the primary roots. d. distal to the primary roots. e. Have no relationship with the primary roots.
b. lingual to the primary roots.
From the occlusal view, which permanent molar has a rhomboid shape? a. mandibular first b. maxillary first c. mandibular second d. maxillary second
b. maxillary first
At what age does the mandibular second molar erupt? a. 7 to 9 years b. 10 to 12 years c. 11 to 13 years d. 12 to 14 years e. None of the above
c. 11 to 13 years
Which is not included in the dental formula for the human left or right side primary dentition? a. 2 maxillary, 2 mandibular incisors b. 1 maxillary, 1 mandibular canine c. 2 maxillary, 2 mandibular premolars d. 2 maxillary, 2 mandibular molars
c. 2 maxillary, 2 mandibular premolars
The first evidence of calcification of the maxillary permanent canine is at a. 2-3 months. b. birth. c. 4-5 months. d. 1 year.
c. 4-5 months.
The maxillary first premolar will typically demonstrate which pulpal configuration? a. Single root with one root canal b. Double root with one root canal c. Double root with two root canals d. Single root with three root canals
c. Double root with two root canals
Which tooth has an almost continuous crown-root outline on the mesial surface? a. Maxillary central incisor b. Maxillary canine c. Mandibular canine d. All of the above
c. Mandibular canine
Which of the following characteristics cannot be used to distinguish the first maxillary premolar from the maxillary second premolar? a. Root morphology b. Mesial marginal developmental groove on the maxillary first premolar c. Mesio lingual developmental groove on the maxillary second premolar d. Length of the central groove
c. Mesio lingual developmental groove on the maxillary second premolar
Comparing the maxillary lateral incisor to the maxillary central incisor, which is true? a. The lingual fossa on the lateral incisor is more pronounced. b. The form of the crown of the lateral is much more variable. c. a and b only d. The incsal ridge is facial to a line bisecting the root facio-lingually. e. a, b, and d
c. a and b only
Which are characteristics of the maxillary first premolar as compared to anterior teeth? a. Wider facio-lingually than mesio-distally b. Broader contact areas c. a and b only d. A longer crown measurement crevice-occlusally e. a, b, and d
c. a and b only
Reciprocal clicking of the TMjoint disc is the result of... a. lateral displacement of the disc on closing. b. medial displacement of the disc on opening. c. anterior displacement of the disc on closing. d. superior disc displacement on opening.
c. anterior displacement of the disc on closing
The maxillary lateral incisor is smaller than the maxillary central in all aspects except a. crown length. b. crown width mesio-distally. c. crown width labio-lingually. d. root length. e. All of the above
c. crown width labio-lingually.
Which molar has the largest mesiodistal measurement? a. maxillary first b. maxillary second c. mandibular first mandibular second
c. mandibular first
The interdental papilla is located in the facial embrasure lingual embrasure cervical embrasure occlusal embrasure
cervical embrasure
Which is not considered tooth tissue? a. Enamel b. Cementum c. Dentin d. Cartilage
d. Cartilage
Which is not true of a mandibular second premolar? a. Larger than the first mandibular premolar b. Buccal cusp is larger than the first premolar c. Distal marginal ridge is lower than the medial marginal ridge d. No mesiolingual developmental groove
d. No mesiolingual developmental groove
A shallow linear depression on the surface of a tooth that does not mark the junction of developing lobes is called: a. the oblique ridge. b. a transverse ridge. c. a developmental groove. d. a supplemental groove. e. a mamelon.
d. a supplemental groove.
Primary incisors have: a. straight incised edges b,no mamelons c. prominent facial and lingual cervical ridges d. all of the above
d. all of the above
Which of the following characteristics describe #26? a. distal contact area closer to cervical than mesial contact area b. labial surface flatter than #7's c. appears twisted on its crown when viewed incisally d. all of the above e. none of the above
d. all of the above
3. The incised edge takes an oblique course appearing as if twisted around the long axis of the root. this describes most succinctly the a.maxillary lateral incisor-incisal view b. mandibular first premolar-medial view c. mandibular central incisor-distal view d. mandibular lateral incisor-incisal view
d. mandibular lateral incisor-incisal view
The junction of the dentin and the enamel is called the: gingival line cervical line cervicoenamel ridge dentinoenamel junction none of the above
dentinoenamel junction
The junction of the dentin and the enamel is called the: gingival line cervical line cervicoenamel ridge dentinoenamel junction none of the above
dentinoenamel junction
Which of the following is an example of a correctly formulated point angle? mediodistal disto-occlusoincisal distolabioincisal mesiolinguodistal bucco-occlusal
distolabioincisal
The developmental grooves form a "Y" pattern in which premolars? a. Mandibular second with two cusps b. Mandibular first with one cusp c. Maxillary first with three cusps d. Maxillary second "Cougar" e. Mandibular second with three cusps
e. Mandibular second with three cusps
Which characteristics correctly identify the mandibular central incisor: a. crown is generally narrower mesiodistally than the crown of a mandibular lateral incisor b. crown is asymmetrical with a rounded distoincisal angle c. mesial and distal heights of contour are at relatively equal distances from the cervical d. a and b e. a and c
e. a and c
Which is characteristic of the two cusp mandibular second premolar? a. Crown outline is rounded lingual to the buccal cusp ridges b. There is lingual convergence of the medial and distal sides. c. a and b only d. The central developmental groove is more frequently crescent shaped. e. a, b, and d
e. a, b, and d
General categories of the human dentition include which of the following? a. primary dentition b. permanent dentition c. a and b only d. mixed dentition e. a,b, and d
e. a,b, and d
The permanent mandibular canine root is sometimes bifurcated into facial and lingual roots. medial and distal roots. neither of the above. The mandibular canine root does not bifurcate.
facial and lingual roots.
A 6 year old boy is in a scuffle and a blow to the mouth yields a front tooth. A midst the blood and mucous lies his front tooth in his hand with the root gone. It is likely: to have fractured off the root have had the root resorbed by the succedaneous tooth to be a supernumerary to need to be splinted back on
have had the root resorbed by the succedaneous tooth
The mesial contact area of the maxillary canine is centered where on the crown? Incisal third Middle third Junction of the incisal and middle third Junction of the middle and cervical third
junction of the incisal and middle third
With primary canines, the maxillary canine has a _____ mesial cusp ridge and the mandibular canine has a_____ mesial cusp ridge. longer, shorter shorter,longer neither-both are the same
longer, shorter
The smallest permanent tooth in the mouth is a mandibular canine. mandibular lateral incisor. mandibular central incisor. maxillary lateral incisor. maxillary central incisor
mandibular central incisor.
The primary mandibular second molar most closely resembles the permanent maxillary first premolar mandibular second premolar mandibular first molar mandibular third molar
mandibular first molar
The first posterior succedaneous tooth to erupt is normally the mandibular first molar. mandibular first premolar. mandibular second premolar. maxillary first molar. maxillary canine
mandibular first premolar.
The incised edge takes an oblique course appearing as if twisted around the long axis of the root. This describes most succinctly the maxillary lateral incisor-incisal view mandibular first premolar-medial view mandibular central incisor-distal view mandibular lateral incisor-incisal view
mandibular lateral incisor-incisal view
The developmental grooves form a "Y" pattern in which of the following premolars? Mandibular second with two cusps Mandibular first with one cusp Maxillary first with three cusps mandibular second with three cusps
mandibular second with three cusps
The lingual cusp of the maxillary first premolar in inclined distally mesially distolingually directly over the center mesiodistally
mesially
The highest and sharpest cusp on a primary mandibular first molar is the mesiolingual distolingual mesiofacial distofacial distal
mesiolingual
The teeth which ordinarily contact or are adjacent to the mandibular primary second molar in a seven-year old child are the mandibular primary canine and first molar. primary canine and permanent first molar. first premolar and permanent first molar. primary first molar and permanent first molar primary first molar and first premolar.
primary first molar and permanent first molar
That portion of the pulp cavity found mainly within the coronal portion of the tooth is called the: pulp canal pulp cavity pulp chamber pulp space
pulp chamber
In viewing the mandibular permanent canine from the labial aspect, the medial cusp ridge is _______ the distal cusp ridge. equal to longer than shorter than
shorter than
7.The maxillary tooth exhibiting the greatest statical variation in root alignment is the central incisor lateral incisor canine first premolar second premolar first molar second molar third molar
third molar
Viewed from the facial or lingual, all teeth have a _____ shape. rectangular rhomboidal triangular trapezoid square
trapezoid
When looking at the facial or lingual aspect of all anterior teeth, they have a: trapezoidal outline triangular outline rhomboidal outline square outline
trapezoidal outline
Marginal ridges of deciduous anterior teeth are less pronounced than permanent anterior teeth True False
true
47. Compared to a maxillary second premolar, a maxillary first premolar has two roots, one facial and one lingual three developmental grooves one root containing the root canals a shorter central groove two roots, one mesial and one distal
two roots, one facial and one lingual
In the majority of cases, the maxillary first premolar differs from the maxillary second premolar in that the first premolar has short central groove three developmental grooves one root containing two root canals two cusps, one facial and one lingual two roots, one facial and one lingual
two roots, one facial and one lingual
Which of the following groups of numbers identify the maxillary left anterior teeth? . 6, 7, 8 14, 15, 16 9, 10, 11 23, 24, 25 2, 3, 4
9, 10, 11
Which of the following surfaces demonstrates the greatest cervical curvature? #7 distal #7 mesial #8 distal #8 mesial
#8 mesial
Which of the following tooth surfaces tends to have the greatest curvature of the cervical line? #8 mesial #8 distal #14 mesial #14 distal
#8 mesial
Permanent mandibular molars are distinguished from permanent maxillary molars in that permanent mandibular molars have (a) two roots, one mesial and one distal (b) crowns that are broader buccolingually than mesiodistally (c) lingual cusps almost equal in size (d) crown axes inclined toward the buccal (a) and (b) (a) and (c) (b) only (b),(c) and (d) (c) and (d)
(a) and (c)
In comparing primary and permanent dentitions, which of the following are notable differences? (a) Cervical ridges of permanent teeth are more pronounced. (b) Crowns of primary incisors are shorter compared with mesiodistal diameters. (c) Root trunks of primary teeth are less pronounced. (d) Enamel is thinner in primary teeth compared with the bulk of the crowns. (e) Pulp cavities are larger in permanent teeth. (f) Roots of permanent teeth are longer and slimmer. (a),(b), and (c) (a),(e), and (f) (b), (c), and (d) (b), (c), and (e) (c), (d), and (e)
(b), (c), and (d)
The average curvature from the cementoenamel junction (CEJ) to the crest of contour is approximately what length? They are equal. 0.25 mm 0.5 mm 1 mm
0.5 mm
Resorption of the primary tooth roots begins approximately how long after the root is completely formed and the apical foramen is established? 1 to 2 years 3 to 4 years 4 to 5 years 6 to 7 years
1 to 2 years
At what age is the maxillary deciduous canine shed? 6 to 7 8 to 9 10 to 11 12 to 13
10 to 11
45. Which of the following represents the total number of teeth in the permanent dentition that normally possess a cingulum? 4 6 8 12 16
12
Eruption of the maxillary second molar begins at what age? 9 to 10 years 10 to 11 years 11 to 12 years 12 to 13 years
12 to 13 years
Calcification of the primary teeth begins in utero from ________ weeks postfertilization. 10 to 12 13 to 16 16 to 18 18 to 20
13 to 16
The length of the root of the mandibular lateral incisor is closest to which of the following? 11 mm 12 mm 13 mm 14 mm
14 mm
Which universal numbers are used to identify the maxillary left molars? 1,2,3 14,15,16 17,18,19 30,31,32
14,15,16
The root length of the mandibular canine is closest to which of the following? 14 mm 16 mm 18 mm 20 mm
16 mm
At what age does the mandibular third molar begin eruption? 10 to 12 years 14 to 16 years 17 to 21 years After 22 years
17 to 21 years
The dentition of a normally-developed 7-year old child usually consists of: 8 primary and 8 permanent teeth 10 primary and 10 permanent teeth 18 primary and 6 permanent teeth 20 primary teeth
18 primary and 6 permanent teeth
Which of the following teeth is not considered a succedaneous tooth (Universal system)? 24 19 28 11
19
Which of the following best represents the order of emergence of permanent teeth from earliest to latest eruption (Universal system of numbering)? 19, 5, 11, 8 8, 19, 5, 11 8, 5, 19, 11 19, 8, 5, 11
19, 8, 5, 11
Which deciduous tooth is the 3rd to erupt in the mandibular right quadrant. Canine 1st premolar 2nd molar 1st molar
1st molar
At what age is calcification of the mandibular second molar first evident? At birth 6 to 9 months 1 year 2 to 3 years
2 to 3 years
42. How soon after the eruption of a permanent tooth is the apex usually fully developed? Immediately 3 months 2-3 years 5-6 years
2-3 years
Calcification of the maxillary second molar begins at what age? At birth 1.5 year 2.5 years 3.5 years
2.5 years
The determination of chronological age is possible for persons under what age when the dental maturity, tooth development, and osseous tissue development is considered? 20 years 30 years 40 years Any age
20 years
When a child looses teeth O and P, what permanent teeth erupt in their place. 8 and 9 6 and 11 24 and 25 22 and 27
24 and 25
The normal age range of the primary dentition from complete formation to complete loss is which of the following? 1 to 7 years 1 to 11 years 3 to 7 years 3 to 11 years
3 to 11 years
The point of bifurcation of the two buccal roots is located approximately how far from the cervical line of the maxillary first molar? 1 mm 2 mm 3 mm 4 mm
4 mm
Which of the following permanent teeth will most likely begin eruption first (Universal system)? 4 5 6 15
5
Which of the following age ranges best represents the mixed dentition period? 5 to 13 years 6 to 13 years 5 to 11 years 6 to 11 years
6 to 11 years
At what age does the mandibular first molar begin eruption? 4 to 5 years 6 to 7 years 8 to 9 years 10 years
6 to 7 years
At what age is calcification of the mandibular third molar first evident? 4 to 5 years 6 to 7 years 8 to 10 years 10 to 12 years
8 to 10 years
Which of the following best represents the age of eruption of the maxillary lateral incisor? 6.5 years 7.5 years 8.5 years 10.5 years
8.5 years
The cervicoincisal length of the crown of the mandibular central incisor is closest to which of the following? 7.5 mm 8.5 mm 9.5 mm 10.5 mm
9.5 mm