ch 9 review
study the diagrams on pages
168 figure 9-36 170 figure 9-39 172 figure 9-41 174 figures 9-44 and 9-45 177 figure 9-50 178 figure 9-52
on average how many teeth does an adult have?
32
which teeth play an important role in speech?
incisors
three bulges on the incisal edge of newly erupted centrals are called
mamelons
what is the first permanent tooth to erupt?
mand. 1st molar
which tooth has 2 pulp canals in one of its roots?
mand. 1st molar
which tooth has a non functioning lingual cusp?
mand. 1st premolar
the tooth that appears to have 4 equally sized cusps is the?
mand. 2nd molar
how many teeth are found in each arch of the deciduous teeth?
10
usually by the age of_____, all deciduous teeth have exfoliated
12 years
all deciduous teeth are usually fully erupted by the age of?
3 years
wisdom teeth can also be referred to as?
3rd molars
how many quadrants does the oral cavity contain?
4
all teeth have how many surfaces?
5
the first permanent tooth usually erupts at age?
6
the first primary tooth erupts around what age?
6 months
the period of mixed dentition is ____ to _____?
6- 12 years
the study of the structure and form of teeth is
Tooth morphology
the opening in the apical portion of each root is the
apical foramen
if a tooth has two roots; it is considered?
bifurcated
the tooth surface that is on the cheek side is?
buccal
______ is a linear depression forming a grove that extends from the middle of the buccal surface to the occlusal surface of the tooth.
buccal groove
the root and the crown are divided by the ____
cervical line
the convex area on the lingual surface of an anterior tooth is the?
cingulum
on the tooth, the ______ refers to where the proximal side of two teeth comes together and touches (mesial of one and distal of another)
contact area
which teeth are often called the cornerstone of the mouth?
cuspid
the anterior teeth are from...
cuspid to cuspid
a space of gap between the teeth is called a
diastema
on the mandibular cuspid, the _____ cusp slope is longer than the mesial cusp slop.
distal
______ is a developmental groove where decay often initiates this imperfect union
fissure
the shallow rounded or angular depression found on the tooth surfaces is the..?
fossa
______ is the dividing point of a multirooted tooth
fucation
the dividing point of a multi rooted tooth is the ____
furcation
deciduous teeth have _____ pulp chambers, greater care should be given to them during a coronal polishing so you dont overheat the tooth
larger
the tooth surface that is on the tongue side is?
lingual
the smallest permanent tooth in the dentition is the ?
mand. centeral
the elevated area of enamel that forms the mesial and distal borders of each tooth is the _____ ridge
marginal
elevated area of enamel that forms the mesial and distal borders of the lingual surface is the
marginal ridges
the tooth that contains the cusp of carabelli is the?
max 1st molar
which premolar has two roots?
max. 1st
which premolar is often considered for removal for orthodontic treatment?
max. 1st
which teeth are sometimes congenitally missing?
max. laterals
which permanent tooth are not succedaneous?
molars
the elevated area of enamel that extends obliquely across the tooth is the _______ ridge
oblique
elevated area of the enamel that extends obliquely across the occlusal of the tooth is the?
oblique ridge
______ is a shallow, linear groove that radiates from the developmental groove
supplemental groove
the union of two triangular ridges that produces one ridge across the occlusal surface is the _______ ridge
transverse
an elevation of enamel that descends from the cusp into the middle of the occlusal surface is the _____ ridge
triangular
a tooth that has the characteristics of a buccal cusp and two lingual cusps is termed ______
tricanineate
the clinical crown is defined as the portion of the tooth that is?
visible in the mouth
