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題 名 | 使用差別式直線矯正法於安格氏第一級異常咬合之治療--病例報告=The Treatment of Angle Class I Malocclusion with Differential Straight Arch Technique--A Case Report |
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作 者 | 林國瑞; 沈德泓; | 書刊名 | 國防醫學 |
卷 期 | 29:6 1999.12[民88.12] |
頁 次 | 頁542-549 |
分類號 | 416.92 |
關鍵詞 | 差別式直線矯正法; 差別式移動; Tip-edge; Differential straight arch technique; Differential tooth movement; |
語 文 | 中文(Chinese) |
中文摘要 | 有鑑於Begg裝置不能精確調整牙齒的角度及在後拉齒時容易造成過度傾斜,Edgewise裝置在移動牙齒上有需要較大的力量和錨定,P.C. Kesling將Edgewise支架加以改良成為tip-edge支架,其線槽的設計可以允許牙齒做單方向一定程度的傾斜(20-25度),又因為角度化的結果,使其能像直線裝置以平直角弓線調整牙齒的角度,這也使其成為可以使牙齒做差別式移動(牙冠先傾斜再使牙根直立)的Edgwise支架。在1986年,P.C.Kesling的使用tip-edge支架治療病人,在治療初期利用口內對側牙弓作錨定,以2~2.5oz的力量讓牙齒傾斜移動,治療後期在以平直的角弓線及直立彈簧調整牙齒的角度,這就是所謂的差別式直線矯正法。本病例為安格氏第一級異常咬合,矯正治療前先拔除四顆第一小臼齒,再使用tip-edge支架及差別式直線矯正法完成治療。 |
英文摘要 | To the Begg appliance, the precise mesio-distal angular control was lacking, which allowing excessive tipping during retraction and making finishing difficult. On the other hand, conventional edgewise technique must use higher level of force (-600Z per quadrant) to move teeth because restriction by the bracket slots. For these reasons, in 1986, P.C.Kesling introduced an edgewise-type bracket (Tip-Edge) that permits both initial differential tooth movement and final edgewise torque and tip control with straight wires. A reatively new straight wire approach, the differential straight arch technique developed. This is made possible by the Tip-Edge bracket's arch wire slot, which allows crown tipping only in one predetermined direction (20-25°), and the system uses the differential anchorage for major tooth movements, reserving the straight wire concept for final finishing only. The case report describe the treatmert of angle class I malocclusion by means of Tip-Edge brackets and straight arch wires with the pretreatment removal of the four first premolars. |
本系統中英文摘要資訊取自各篇刊載內容。