8.全口義齒由咬合面觀,上顎正中門齒之切緣(incisal edge)平均約在門齒乳頭(incisive papilla)中點之前方約幾 mm 處?
(A)3
(B)5
(C)8
(D)11
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統計: A(32), B(76), C(533), D(31), E(0) #1625500
統計: A(32), B(76), C(533), D(31), E(0) #1625500