1 從咬合面看,正常的咬合線(line of occlusion),是一條平順的曲線(垂曲線),通過上顎門齒與犬
齒的舌面隆凸(cingulum),然後往後延伸通過上顎大臼齒的何處?
(A)頰側咬頭(buccal cusp)
(B)舌側咬頭(lingual cusp)
(C)中央窩(central fossa)
(D)頰側溝(buccal groove)
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統計: A(102), B(91), C(478), D(22), E(0) #1374165
統計: A(102), B(91), C(478), D(22), E(0) #1374165