以改良式Hawley裝置合併2×4固定矯正裝置早期治療前牙錯咬－病例報告

Early Orthodontic Treatment for an Anterior Cross-bite Malocclusion with Modified Hawley Appliance and 2×4 Fixed Appliance-A Case Report

蔡尚宏(Shang-Hung Tsai) ； 李慈心(Tzu-Hsin Lee)

《中華民國齒顎矯正學雜誌》 21卷1期 (2009/03) Pp. 45-53

https://doi.org/10.30036/TJO.200903.0007

摘要

前牙錯咬的病因相當複雜，治療模式也大異其趣。有學者主張早期治療，其中包括頦托、面罩、上頷擴張等，但也有學者主張在沒有外觀社交的考量下，應該任其生長，待生長完成之後再進行矯正合併手術治療。但其中有一種偽性的前牙錯咬，如果可以在混合齒列期早期矯正前牙錯咬的情況，可以避免因為齒列的阻擋，造成上頷生長不足，也可以避免因為過深的咬合造成咬合創傷。本病例提供一個簡單的治療模式：先以改良式Hawley活動式矯正裝置改正前牙錯咬，等前牙錯咬改善後再以2×4固定式矯正裝置扳正前牙牙根。

關鍵字

前牙錯咬 ； 偽性第三級咬合 ； 早期治療

並列摘要

The etiology of anterior cross-bite is multi-factor and the advocated treatment options were abundant. Early orthodontic treatments including chin-cap, face mask and palatal expansion have been recommended by many scholars. But some other clinicians would delay the orthodontic treatment combined with orthognathic surgery for Class Ⅲ cases till the completion of growth, if there were no obvious detriment to patients' oral function or psychological impact to their social life. However, for cases of non-skeletal anterior cross-bite (Pseudo-Class Ⅲ) malocclusion, early orthodontic correction would be beneficial to normal maxillary forward growth and may prevent occlusal trauma of anterior teeth. This case report presents the early orthodontic correction for a 9 year old boy with anterior cross-bite malocclusion. Treatment with modified Hawley appliance followed by 2×4 fixed orthodontic appliance proved to be an easy solution for this type of malocclusion.

並列關鍵字

Anterior crossbite ； Pseudo Class III ； early treatment