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題 名 | 前牙開咬合併下顎側方偏位之成年患者的妥協性矯正治療--病例報告=Compromised Orthodontic Treatment for an Adult Patient with Anterior Openbite and Mandibular Lateral Displacement--Case Report |
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作 者 | 陳羿貞; 張心涪; 邱宏正; 陳坤智; | 書刊名 | 中華牙醫學雜誌 |
卷 期 | 16:4 1997.12[民86.12] |
頁 次 | 頁256-269 |
分類號 | 416.97 |
關鍵詞 | 下顎側方偏位; 前牙開咬; 矯正治療; Mandibular lateral displacement; Anterior openbite; Orthodontic treatment; |
語 文 | 中文(Chinese) |
中文摘要 | 咬合異常的患者如果合併有下顎側方偏位的問題,經常會增加矯正治療的複雜性, 尤其是成年患者,甚至需要藉助正顎手術,才能徹底矯治骨骼性異常;矯正醫師為此類患者 擬定治療計劃時,必須考慮病人的主要訴求、骨骼異常的程度以及接受手術之意願等因素。 本報告提出一成年男性病例,主訴咬合不正及前齒區縫隙。臨床檢查發現病人的下頦向左偏 斜,顏面垂直開展度較大而導致下顏面高過長及下頦稍顯後縮。口內檢查發現前齒開咬 5mm ,前齒區縫隙在上顎及下顎分別為 4mm 與 7mm;左側犬齒與第一大臼齒咬合皆為安格氏 II 級關係,右側則為 I 級關係。測顱分析顯示病人上下顎骨間呈 I 級關係但有三級傾向。由 於病人不願意接受手術,因此只能施以矯正治療,關閉前齒區縫隙前牙開咬,並將空隙集中 於缺牙區再進行補綴重建。在治療當中,將過度萌發且造成咬合干擾的左下第三大臼齒拔除 之後,病人便極容易將偏斜之下顎咬回正中位置,因此順勢將齒列咬合建立在下顎對正的位 置。矯正治療後,無論顏面外觀或齒列咬合皆獲得明顯改善,雖然左側髁頭相對於顳顎關節 窩呈向前下方移位,除了治療前即存在之左側關節彈響之外,顳顎關節並未出現功能障礙或 新增症狀。治療後的二年追蹤期間咬合情形仍然穩定,其後病人因故連續三個月未戴維持器 與活動義齒,繼而出現的復發變化與咬合問題,皆一併提出報告與討論。 |
英文摘要 | Mandibular lateral displacement often increases the complexity of treatment for adult patient with malocclusion. One case, presented in this article, demonstrates a compromised orthodontic treatment for an adult patient with anterior openbite and mandibulr lateral displacement. This 20-year-old male paitent complained of anterior teeth spacing. Clinical examination revealed an asymmetric face and chin deviation to the left side, dental class II subdivision malocclusion with 5 mm anterior openbite and generalized anterior teeth spacing. Because this patient refused to have orthognathic surgery, initial orthodontic treatment commenced to close his anterior openbite and interdental spacing. During the treatment, a frequent intentional movement of the mandible toward the midline-on position was observed. This observaiton convinced us to extract the over-erupted left lower third molar with the expectation that the mandible would shift back to the midline-on position after removal of the interference. The radiography of the TMJ spot view showed a forward and inferior displacement of the left condyle in the glenoid fossa. Orthognathic surgery was recommended but the patient refused. The patient consent to continuing the compromised orthodontic treatment with the complete understanding of the possible subsequent TMJ problem. The orthodontic treatment lasted 22 months and resulted in a good occlusion. The treatment results remained stable over a 2 year follow-up period; however, the significant relapse and occlusal changes were noted after the patient stopped wearing the retained and the lower removable partial denture for 3 months. |
本系統中英文摘要資訊取自各篇刊載內容。