兩顆埋伏犬齒的矯正治療－病例報告

Orthodontic Treatment of Double Impacted Canines

宋亭萱(Ting-Shiuan Sung) ； 許瀚仁(Han-Jen Hsu)

《中華民國齒顎矯正學雜誌》 24卷3期 (2012/09) Pp. 55-63

https://doi.org/10.30036/TJO.201209.0006

摘要

這不是一個治療完美的病例，在治療過程中，我犯得一些錯誤，希望各位醫師可以避免。這位11歲的女孩由父親陪同到門診求診，主訴為前牙凌亂、不美觀。檢查發現，患者外觀為凸臉形，上顎與上唇前突；咬合關係為安格式第二級咬合不正，右上與左下乳犬齒未脫落，右上犬齒與左下犬齒均為埋伏牙。治療計畫為，拔除右上和左下乳犬齒，force eruption右上與左下埋伏牙；待埋伏牙排齊後，拔除上顎兩側第一小臼齒與下兩側第二小臼齒，將前牙後退，改善齒列與外觀問題。當右上犬齒位置排正時，側門牙被推向顎側：此時患者母親表示希望拔除顎側的側門牙，而不願犧牲其他牙齒。多次討論後，在母親堅持下，只拔除右上側門牙，治療目標該為右上犬齒取代側門牙，小臼齒取代犬齒，以第二級咬合關係完成治療。

關鍵字

埋伏牙 ； 埋伏牙牽引 ； 取代

並列摘要

This is not a perfect case. I made some mistakes during the treatment. I wish every orthodontics can learn something from the case and prevent the mistakes that I have made. this was a 11 years old girl and her chief complained is anterior teeth crowding. The findings of examination were convex facial profile, protrusive upper and lower lip, Angle Class I malocclusion, upper right and lower left canine impacted. The treatment plane were force eruption of the two impacted canine, and extraction of upper and lower bilateral first premolars for anterior teeth retraction. when the upper right ca nine was leveled and aligned, the upper right lateral incisor was pushed to palatal side. At that moment, the patient's mother insisted on extraction of the block-in lateral incisor, and not sacrificed other premolars. So, the treatment changed to extract the upper right incisor, canine substitution, and be finished with Class II relationship.

並列關鍵字

impacted canine ； force eruption ； substitution