32.在剛萌出的恆前齒唇側面上,接近齒頸部有數條橫紋,稱為下列何者?
(A)發育凹陷(developmental depressions)
(B)釉質橫嵴(perikymata)
(C)切緣結節(mamelon)
(D)齒頸曲度(cervical curvature)
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統計: A(83), B(1328), C(52), D(31), E(0) #3135179
統計: A(83), B(1328), C(52), D(31), E(0) #3135179