44.在設計Kennedy class I可撤式局部義齒,若是支柱牙的牙周支持(periodontal support)不佳而需特別保護,應採用下列何種牙鈎為佳?
(A)T 型槓鈎(T-bar clasp)
(B)環鈎(ring clasp)
(C)阿克斯牙鈎(Akers clasp)
(D)鍛製金屬線牙鈎(wrought wire clasp)
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統計: A(40), B(34), C(33), D(491), E(0) #3379185
統計: A(40), B(34), C(33), D(491), E(0) #3379185