問題詳情

28.下列有關舌側槓(lingual bar)與舌側板(linguoplate)的敘述,何者錯誤?
(A)舌側槓的橫切面為半梨狀(half-pear shaped)
(B)欲使用舌側桿時,前牙的邊緣牙齦(gingival margin)到口底至少約有 5 mm 的垂直空間
(C)垂直空間不足時,則可以考慮使用舌側板
(D)當剩餘的前牙牙周較差時,使用舌側板的方式有利於穩定剩餘前牙,並有利爾後的義齒修補

參考答案

答案:B
難度:簡單0.714286
統計:A(1),B(35),C(4),D(0),E(0)

用户評論

【用戶】joe極白

【年級】大一下

【評論內容】B) at least 8 mm of vertical space must be present between the gingival margins of the teeth and the floor of the mouth. This permits the major connector to have a minimum height of 5 mm and allows 3 mm of space between the gingival margins and the superior border of the bar.