49.當病患口內有陶瓷嵌體(ceramic inlays/onlays)復形物時，下列何種氟化物可以預防二次齲齒，且不會對 陶瓷及牙齒造成不利影響？①acidulated phosphate fluoride solution ②stannous fluoride gel ③ neutral sodium fluoride solution
(A)①②③
(B)僅②
(C)僅③
(D)僅②③

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統計： A(6), B(1), C(4), D(8), E(0) #3974288