DIGESTIVE SYSTEM
TEETH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Canines and posterior teeth have ____ to ____ cusps.
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2-4
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1-3
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2-5
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1-5
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Explanation:
Detailed explanation-1: -The mandibular first molar has the largest mesiodistal dimension of any tooth. E, F It most often has five cusps: three buccal and two lingual (Fig. 5-3), but the small-est distal cusp may be absent about a fifth of the time (Fig. 5-4).
Detailed explanation-2: -Mandibular second premolars have three cusps. There is one large cusp on the buccal side (closest to the cheek) of the tooth.
Detailed explanation-3: -Cusps of posterior teeth can be classified into supporting and non-supporting cusps. The supporting cusps are mandibular buccal and maxillary palatal cusps when the posterior teeth are normally related (i.e., no cross-bite or reverse horizontal overlap).
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