Page 70 - My FlipBook

38 DENTAL ANATOMY

REVIEW QUIZ

1. Give the definition of a tooth, a human tooth, an
unerupted tooth, and an impacted tooth.
A Tooth. A specialized organ, of a hard calcareous

nature, usually located, though not always, in the mouth or
some other part of the alimentary canal, designed for the
purpose of assisting in the performance of one or more of the
following acts or functions, viz. prehension, incision, mastica-
;
tion, defense, attack, digestion, speech, and regulation of

facial contour.
A Human Tooth. A specialized organ, of calco-globuli-
nous nature, situated in the alveolar process of the upper and
lower jaws, designed for purposes of mastication, to assist in
articulate speech and to regulate facial contour.

An Unerupted Tooth (Human). A tooth in process of
development, but which, although moving toward the surface
is still unexposed to view.
An Impacted Tooth (Human). A tooth whose eruption
is interfered with or prevented, with the result that it remains

imbedded, and sometimes encapsulated, in the tissues of the
structure in which it originated.
2. Define angle and distinguish between line and point
angle.
3. Define fossa and give location and names of the fossae
on incisors and molars.

4. Define lobe and distinguish betweeen lobe and cusp.
5. Define ridge and name the marginal ridges on incisors,
cuspids, bicuspids and molars.
6. Describe the location of the transverse ridge on

bicuspids.
7. Describe the location of the oblique ridge on molars.
8. Describe the location of the triangular ridge on bicus-
pids and molars.