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
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統計: A(10), B(368), C(29), D(7), E(0) #1032203
統計: A(10), B(368), C(29), D(7), E(0) #1032203
詳解 (共 1 筆)
#2352356
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.
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