17 幻影齒(ghost teeth)是指下列何者?
(A)局部牙齒發育不良(regional odontodysplasia)
(B)牙本質發育不全(dentinogenesis imperfecta)
(C)第二型牙本質結構不良(dentin dysplasia type II)
(D)殼狀牙(shell teeth)
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統計: A(366), B(42), C(18), D(16), E(0) #1526606
統計: A(366), B(42), C(18), D(16), E(0) #1526606