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Tooth Morphology

 August 21, 2013 |  admin |  Lecture series, Faculty Development Program Series
Question
Answer
When 2 adjacent teeth in
same arch are in contact, their curvatures adjacent to the contact area form
spill way spaces called
Embrasures. Col is the
gingiva occupying the space below the contact area in a healthy intact tooth.
The average number of
embrasures in a contact area of healthy intact well-lined teeth are
Four
The normal curvature from
cementoenamel junction to crest of cervical contour is approximately
0.5 millimeters
The cervical curvature
extends about a millimeter beyond cervical line in lingual surface of
Mandibular posterior teeth
The crest of cervical
curvature in permanent mandibular posterior teeth is at
Middle third of crown
The curvature of cervical
line in proximal aspect will be approximately differ by
One millimeter less
distally
The predominant function of
incisors in humans is to
Shear the food. Grasping is
by means of canine and grinding by means of posterior teeth
Among all the maxillary
permanent anterior teeth  the labial
surface of central incisor is
Less convex
The smallest mamelon in the
maxillary permanent central incisors is the
Central
In the maxillary permanent
central incisors, palatally the middle and incisal third is
Concave