69.下列Miller牙齦萎縮的類型,經過手術後,何者可較有機會達成完全牙根覆蓋(complete root coverage)?
(A)I & II
(B)II & III
(C)II & IV
(D)I & IV
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統計: A(1104), B(40), C(8), D(10), E(0) #2182243
統計: A(1104), B(40), C(8), D(10), E(0) #2182243