COMD 3100 - Exam 4
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A closed bite is when the ___ teeth are unable to meet
TRUE
An open bite is the improper occlusion of the anterior teeth
-Can affect brain development -Often requires surgery to separate fused bone -May or may not be associated with other genetic syndromes -Can affect one or more structure
Craniosynostosis ________
Bringing mobile and immobile articulators into contact for shaping speech sounds
Define Articulation in a speech setting
Connect or join together
Define Articulation in an anatomy setting
First mandibular molars are retracted at least one tooth behind the maxillary molars -Maxillary teeth protrude forward more than normal
Define Class II (malocclusion)
First mandibular molar is advanced farther than one tooth beyond the first maxillary molar -Mandible protrudes beyond the maxilla
Define Class III (malocclusion)
Chewing
Define Mastication
Closest to midline or front of mouth
Define Medial
Normal projection of upper incisors beyond lower incisors in horizontal direction -Close together without touching
Define Normal Overjet
Overlap of upper incisor relative to lower incisor in a vertical direction
Define Normal overbite
Upper incisors over lower incisors (horizontal)
Define Overjet and what direction it affects
-Improper occlusion of posterior teeth -Posterior teeth do not occlude because of excessive eruption of anterior teeth
Define Persistent Closed Bite
-Improper occlusion of anterior teeth -Anterior teeth do not occlude (do not touch when you bite) because of excessive eruption of posterior teeth
Define Persistent open bite
Near the buccal wall (cheeks)
Define buccal
Space between the teeth and cheeks
Define buccal cavity
Tooth tilts toward the cheek
Define buccoversion
First molar of the mandibular arch is one-half tooth advanced of the first maxillary molar
Define class I (neutrocclusion)
Cleft through premaxillary suture of hard palate
Define complete cleft lip
Swallowing
Define deglutition
Most distant from midline or closes to back of mouth
Define distal
Tilts away from the midline or front of the dental arch
Define distoversion
Tooth is inadequately erupted - doesnt come up high enough
Define infraversion
Tooth tilts toward the lips
Define labioversion
Tooth tips toward tongue
Define lingaversion
Closest to tongue
Define lingual
Tilts toward the midline or front of the dental arch
Define mesioversion
Space posterior to nasal cavity and above the soft palate
Define nasopharynx
Contact surface between upper and lower teeth
Define occlusal
Sound quality given to voiced sounds by the vocal tract
Define resonation
Top teeth cover lower teeth almost completely
Define severe overbite
-Large horizontal gap -Front teeth may also be flaring forward -list or tongue thrust
Define severe overjet
Tooth protrudes excessively into the oral cavity, causing inadequate occlusion or bite
Define supraversion
Tooth rotated or twisted on its long axis
Define torsiversion
16 teeth in each arch (includes wisdom teeth, so 14 in each adult if removed)
How many permanent teeth are there?
Apple core
If the skull is an apple then the ethmoid bone is the?
III (3)
In a Class ____ malocclusion between the upper and lower dental arches, the mandibular molar is advanced farther than one tooth beyond the first maxillary molar.
Increases surface area to aid in warming, moistening and cleaning (filter) the air we breath
Nasal Cavity
Middle nasal concha
Part of ethmoid bone
Superior nasal concha
Part of ethmoid bone
Inferior nasal concha
Part of facial bones - inferior most part of lateral nasal wall
FALSE
Platysma muscle elevates the mandible
FALSE
The Teeth are mobile articulators
Cribriform plates
The ______ of the ethmoid bone separate the nasal cavity from the cranial cavity.
Premaxillary suture
The ______ suture separates the premaxilla from the palatine processes of the maxilla.
FALSE
The coronoid process of the mandible house the teeth
Flatten the tongue
The function of the vertical muscles of the tongue is to ______
FALSE
The lambdoidal suture is located between the parietal bone and the temporal bone.
Buccinators
The muscle that helps move food to the molars for mastication is the ______
Perpendicular Plate
The nasal septum, which divides the nasal cavities into two, is made up of cartilage, the vomer bone and ___ of the ethmoid bone.
Perpendicular plate
The nasal septum, which divides the nasal cavities into two, is made up of cartilage, the vomer bone and ______ of the ethmoid bone.
Nasopharynx
The orifice of the Eustachian tube is located in the _____
Vocal tract
The source filter theory of vowel production states that speech is the product of sending an acoustic source, such as the sound produced by the vibrating vocal folds, through the filter of the ____, which shapes the output.
TRUE
The superior, middle, and inferior nasal conchae aid in warming and filtering air
horizontal plates of the palatine bones
The transverse palatine suture separates the palatine processes of the maxilllae from the ____.
Palatine
The velum is attached to the ______bone to form the muscular extension of the hard palate.
Baby teeth -10 teeth in each arch
What are deciduous teeth?
-Starts at incisive foramen -Follows along the intermaxillary suture of the palatine process of the maxilla -Continues between the horizontal plates of the palatine bone -Goes through soft palate
What are some characteristics of a Complete cleft palate
-Starts at a point posterior to the incisive foramen -May include a cleft through the part of the hard palate and the soft palate -May only involve the soft palate
What are some characteristics of a Partial cleft palate
-Unilateral or Bilateral -Requires surgery -Can have cleft lip or cleft palate or both -Difficultues with feeding in infancy -May need orthodontics care when older -May or may not have speech difficulties
What are some characteristics of a cleft lip?
- Mandible - Maxillae - Nasal bone - Inferior nasal conchae - Vomer - Zygomatic - Lacrimal - Palatine - Hyoid
What are the bones of the face?
-Possible genetic syndromes -May interfere with infant feeding -May cause abnormal alignment of the teeth
What are the causes of micrognathia?
1. Oral cavity (mouth) 2. Nasal cavity 3. Buccal (cheeks) 4. Pharyngeal -Nasopharynx -Oropharynx -Laryngopharynx
What are the cavities of the vocal tract?
- Not completely understood - Perhaps minimal relationship to resonance -Reduce weight in skull but minimal
What are the function of the sinuses?
- Hard palate - Alveolar ridge of maxillae - Teeth
What are the immobile articulators?
- Lips - Cheeks - Tongue - Mandible - Velum - Pharynx - Posterior faucial pillar - Anterior faucial pillar
What are the mobile articulators?
Vertical
What direction does overbite affect?
When the mandible is small in relation to the maxilla
What is micrognathia?
-As fasce forms, 3 main parts come together to form nose, lips and palate -Nose drops and forms the philtrum -Sides come together and close along philtral ridge
What is the development process of a cleft lip?
Contributes to the structure of the nasal septum
What is the purpose of the perpendicular plate of the ethmoid bone?
To increase surface area to warm and humidify incoming air
What is the purpose of the superior and middle nasal concha?
Speech is the product of sending and acoustic source, such as the sound produced by the vibrating vocal cords, through the filter of the vocal tract that shapes the output.
What is the source-filter theory of vowel production?
Cricopharyngeal
Which muscle is responsible for elevating and opening the pharynx during swallowing?
Stylopharyngeus
Which muscle is responsible for elevating and opening the pharynx during swallowing?
Masseter
Which of the following muscles is responsible for elevating the mandible?
Overbite
____ is the overlap of the maxillary incisors relative to the mandibular incisors