DAT 118: Chapter 15 STUDY GUIDE

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Last updated 1:34 AM on 9/2/26
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40 Terms

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dentition?

describe natural teeth in jaws

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dentitions during lifetime?

primary/permanent

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dentition periods?

primary/mixed/permanent

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adult permanent dentitions?

8 incisors/4 canines/8 premolars/12 molars = 32 teeth

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uses letters in UNS?

primary teeth

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primary dentitions?

8 incisors/4 canines/8 molars = 20 teeth

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primaries have premolars?

false

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uses numbers in UNS?

permanent teeth

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primary dentition period time span?

6 months-6 years

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mixed dentition period time span?

6 years-12 years

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permanent dentition period time span?

after 12 years

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alveolus?

tooth socket

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occlusion?

method by which teeth of mandibular arch come into contact with those of maxillary arch

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midline?

imaginary vertical plane that divides arch into two equal halves (right/left)

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anterior teeth?

incisors/canines

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posterior teeth?

premolars/molars

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D-DAQT?

dentition

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A-DAQT?

arch

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Q-DAQT?

quadrant

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T-DAQT?

tooth type

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sextants?

further divide each dental arch into three parts according to relationship to midline

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crown of tooth?

top part of tooth that is visible without extraction

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root?

part of the tooth inside the gingiva

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enamel?

outer coating of crown

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cementum?

outer layering of root

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pulp cavity?

inside of root and crown

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anatomic crown?

part covered by enamel (include gingiva)

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clinical crown?

part of anatomic crown that’s visible (exclude gingiva)

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anatomic root?

part of root covered by cementum

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clinical root?

part of anatomic root that’s visible

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facial surface?

tooth surface closest to surface of face

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labial surface?

facial tooth surface closest to lips

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buccal surface?

facial tooth surface closest to inner cheek

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lingual surface?

tooth surface closest to tongue

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palatal surface?

lingual surfaces closest to palate on maxillary arch

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masticatory surface?

chewing surface on most superior surface of crown

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incisal surface?

chewing surface for anterior teeth

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occlusal surface?

chewing surface for posterior teeth

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mesial surface?

surface closest to midline

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distal surface?

farthest away from midline