EFDA CH 1 EXAM QUESTIONS AND ANSWERS.docx

EFDA CH 1 EXAM QUESTIONS AND
ANSWERS
anatomical crown -
correct answer ✅portion that extends from the incisal or occlusal
surface to the enamels junction with the cementum of the root


clinical crown -
correct answer ✅part of the tooth that is visible in the mouth


concavity is called -
correct answer ✅furrow


cementoenamel junction -
correct answer ✅is where the enamel meets the cementum at the
base of the anatomical crown


Furrow -
correct answer ✅where two or more roots meet by the CEJ is the
concavity


Furcation -
correct answer ✅the area where roots divide

, EFDA CH 1 EXAM QUESTIONS AND
ANSWERS
what is contact area purpose -
correct answer ✅1 to keep food from packing between teeth.
2 to stabilize the arch


Embrasures -
correct answer ✅The spaces next to and surround the contacts


Enamel -
correct answer ✅covers the anatomical crown and can vary in
thickness


_______ is the hardest tissue in the body, but is brittle -
correct answer ✅enamel


Enamel is composed of -
correct answer ✅95% inorganic matter-hydroxyapatite, and 5%
organic matter and water


what cells form enamel? -
correct answer ✅ameloblasts