Orofacial Anatomy – Chapter 2: The Tooth Study Guide

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Orofacial Anatomy: Chapter 2- The Tooth



what is the function of the tooth?

-help in digestion

-help break down our food (cut and tear)

-form a physical barrier(all our teeth together)

-help in speech

-appearance can be a sexual attraction




each tooth has a crown and root portion (true or false)

true




what is the crown covered by?

enamel




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Orofacial Anatomy: Chapter 2- The Tooth




what is the root covered by?

cementum




cervical line/CEJ (cementoenamel junction)

where the crown and the root meet/join




the crown portion of the tooth erupts through the bone and tissue, it
continues until the whole crown is exposed (true or false)

true




what 2 divisions can the crown be classified into?




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Orofacial Anatomy: Chapter 2- The Tooth



1. anatomical crown

2. clinical crown




anatomical crown

the whole portion of the crown that is covered by enamel (regardless if
its erupted or not)




clinical crown

the portion of the crown that you can only see above the gingiva




if the tooth has not erupted, there is no clinical crown (true or false)

true




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Orofacial Anatomy: Chapter 2- The Tooth




eruption

the movement of the tooth through the gingiva until the clinical crown in
exposed




a tooth can only have 1 root ever (true or false)

false, a tooth can have 1 or 2 or 3 roots




bifurcation

division of a root into 2 segments




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