As a carious lesion progresses, it takes on a triangular shape with the apex pointing toward the ________ and the base toward the ________
A) cementoenamel junction, outer surface of the tooth
B) dentinoenamel junction, outer surface of the tooth
C) outer surface of the tooth, cementoenamel junction
D) outer surface of the tooth, dentinoenamel junction
B
Explanation: A) Caries advances first through the enamel and often takes on a triangle shape with the apex pointing toward the DEJ and the base spreading along the outer surface of the tooth.
B) Caries advances first through the enamel and often takes on a triangle shape with the apex pointing toward the DEJ and the base spreading along the outer surface of the tooth.
C) Caries advances first through the enamel and often takes on a triangle shape with the apex pointing toward the DEJ and the base spreading along the outer surface of the tooth.
D) Caries advances first through the enamel and often takes on a triangle shape with the apex pointing toward the DEJ and the base spreading along the outer surface of the tooth.
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