DIGESTIVE SYSTEM
TEETH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The raised border on the mesial and distal surfaces of the lingual surface of anterior teeth is the:
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cingulum
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fossa
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marginal ridge
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mamelon
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Explanation:
Detailed explanation-1: -The lingual surface on anterior teeth has rounded, raised borders on the mesial and distal surfaces called marginal ridges. Some anterior teeth have a fossa, which is a wide, shallow depression on the lingual surfaces.
Detailed explanation-2: -On the lingual of all anterior teeth, a cingulum [SING gyoo lum] (plural cingula) is the prominence or bulge in the cervical third of the lingual surface of the crown (incisors and canines) (seen on the lingual view in Fig.
Detailed explanation-3: -Marginal ridges-elevated, crests or rounded folds of enamel which form the mesial and distal margins of the occlusal surfaces of the posterior teeth and the lingual surfaces of anterior teeth.
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