27.施行上顎骨勒福氏第一型截骨術(LeFort I osteotomy)之後,上顎齒列主要的血液供應來自於何 處?
(A)上顎竇(maxillary sinus)
(B)上顎粗隆處的牙齦(gingiva of the maxillary tuberosity)
(C)硬軟腭組織(hard and soft palate)
(D)上顎前庭區的組織(maxillary vestibule)

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統計: A(15), B(23), C(163), D(22), E(0) #1035678