Correction of Unilateral Buccal Crossbite with Lower Arch Expansion in Primary Dentition Stage: A Case Report

在乳牙時期透過下顎牙弓擴大來改善單側頰側錯咬－病例報告

王靖玫(Ching-Mei Wang) ； 黃仲民(Chuang-Ming Huang) ； 鄧乃嘉(Nai-Chia Teng)

《臺灣兒童牙醫學雜誌》 20卷1期 (2020/03) Pp. 23-33

https://doi.org/10.6319/TJPD.202003_20(1).0004

摘要

This is a case report of a five-year-old patient with unilateral buccal crossbite of the primary maxillary left first and second molars treated with mandibular expansion via removable appliances. Lower arch expansion was achieved with Schwarz appliance with acrylic occlusal coverage. Upper arch was stabilized using a similar appliance with screw activated to decouple the expansion force of the mandible. Correction of buccal crossbite was achieved within two months period. This report demonstrates that early intervention of buccal crossbite with removable appliances is a viable solution to eliminate a potentially complex malocclusion in the future and upper arch stabilization sometimes is needed during lower arch expansion.

關鍵字

Unilateral buccal cross bite ； Lower arch expansion

並列摘要

本篇目標在介紹一個五歲男孩在乳牙齒列時期，利用活動式下顎擴大裝置及活動式上顎維持裝置，來改善左側頰側錯咬的案例分享，耗時兩個月的時間。這案例告訴我們，頰側錯咬是需要早期介入，而活動式的裝置是可行的治療方法之一，而在下顎的擴大過程中，上顎有時候會需要有代償的裝置，避免上顎跟著下顎一起被擴大。

並列關鍵字

單側頰側錯咬 ； 下顎擴大