34.從唇側觀察上顎恆側門齒遠心接觸點(distal contact point)之所在位置,下列何者正確?
(A)切端1/3(incisal third)
(B)切端與1/3中央1/3交接處(incisal third / middle third junction)
(C)中央1/3(middle third)
(D)齒頸部1/3(cervical third)
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統計: A(104), B(639), C(1187), D(20), E(0) #1845604
統計: A(104), B(639), C(1187), D(20), E(0) #1845604