69.下列何者可診斷為牙本質發育不良(dentin dysplasia) ? (A)
【Sharon T.】評論
Dentin dysplasia 特色有short poorly developed roots, obliterated pulp chambers和root canals (半月形管腔)
【plas7777777】評論
(A) amelogenesis ☆☆☆☆☆☆☆☆☆☆(☆...