Chapter 9: Tooth Morphology Exam
Study Guide with Complete Solutions
adjacent - Answer✔️✔️-(Next to) ;where the teeth in each arch touch the
teeth
agenesis - Answer✔️✔️-occurs when the tooth buds do not form
anatomical crown - Answer✔️✔️-portion of the tooth covered with enamel
anomaly - Answer✔️✔️-extreme variation from the normal
apex - Answer✔️✔️-at or near the end of the root
apical foramen - Answer✔️✔️-an opening in the end of the tooth through
which nerve and and blood vessels enter
apical third - Answer✔️✔️-the root of the tooth is divided into imaginary
thirds with the area nearest the apex as the apical third
bicanineate - Answer✔️✔️-a larger single buccal cusp and a lingual cusp
bicupid - Answer✔️✔️-premolars; usually have 2 pointed or rounded
mounds on the crown of the tooth
bifurcated - Answer✔️✔️-one tooth with two roots
buccal - Answer✔️✔️-the surface of the posterior tooth that is toward the
cheeks
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buccal groove - Answer✔️✔️-a linear depression forming a groove that
extends from the middle of the buccal surface to the occusal surface of the
tooth
canine - Answer✔️✔️-(cuspid) ;slightly more bulky in size and aids in
tearing food
canine eminence - Answer✔️✔️-a bony ridge covering the labial portion of
the roots
central incisor - Answer✔️✔️-used to cut or bite the food that is ingested;
first tooth from midline
cervical line - Answer✔️✔️-where the anatomical crown and root join
cervical third - Answer✔️✔️-the area on the crown of the tooth that is closest
to the cervical area (or the gingva) of a tooth
cingulum - Answer✔️✔️-a convex area on the lingual surface of the anterior
teeth near the gingiva
clinical crown - Answer✔️✔️-exposed coronal portions of the crowns
clinical root - Answer✔️✔️-the portion of the root seen in the oral cavity
concave - Answer✔️✔️-recessed or indented
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