以左右力量不對等之MEAW矯正線治療下顎門齒中線偏移

李 昭緣, 陳 怡如, Eric Jein-Wein Liou, Chiung-Shing Huang

Research output: Contribution to journalJournal Article peer-review

Abstract

治療門齒中線的偏移傳統矯正方法常需要拔除牙齒或切削牙齒的近遠心面,以獲得空間改善。本病例報告為-22歲女性,主訴下顎齒列中線往左側偏移2mm及上顎正中門齒縫隙。治療計畫為拔除右下第三大臼齒,及使用左右力量不對等之下顎MEAW矯正線,將下顎齒列往右側遠心方向扶正以取得空問改正中線偏移,並以矯正方法關閉上顎正中門齒間縫隙。以此矯正方法治療兩個月後,下顎齒列中線問題即已獲得初步改善。全部治療時間為十三個月。矯正完後第一大臼齒為安格氏第一級咬合關係及維持術後正常的垂直深咬與水平覆咬。本病例報告顯示以左右力量不對等之MEAW矯正線可有效治療下顎門齒中線偏移。
A 22-year-old female was presented with upper central diastema and 2 mm mandibular dental midline deviation to the left. The treatment plan was to close the upper central diastema by using elastic chains and correct the mandibular dental midline deviation by using MEAW technique. After extraction of the right mandibular 3rd molar and initial alignment of the lower dentition, a lower MEAW arch wire was placed for the midline correction. The MEAW arch wire was activated asymmetrically so that the mandibular dental midline would be corrected by uprighting of the mandibular dentition on the right. The mandibular dental midline was corrected 2 months after placement of the MEAW arch wire, and the total treatment course was 13 months. The treatment results revealed that the upper central diastema was closed, the mandibular dental midline was corrected, and the canine and molar were achieved in Class I relationship with a normal overbite and overject. In this case report, the MEAW technique effectively corrected the mandibular dental midline deviation through asymmetric activation.
Original languageChinese (Traditional)
Pages (from-to)32-38
Journal中華民國齒顎矯正學雜誌
Volume17
Issue number3
StatePublished - 2005

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