以脫位方式治療沾黏乳臼齒：病例報告

Luxation for Ankylosed Lower Primary Second Molar : A Case Report

黃渝聖(Yu-Sheng Huang) ； 洪千喬(Chien-Chiao Hung)

《臺灣兒童牙醫學雜誌》 16卷4期 (2016/12) Pp. 159-163

https://doi.org/10.6319/TJPD.2016.16(4).5

摘要

沾黏乳臼齒是一種生理結構異常，好發於乳臼齒，尤其是下顎第二乳臼齒，依據發生沾黏乳齒數量及研究地點不同，發生機率範圍從1.5%到9.9%。牙科醫師在臨床上聯想到乳齒沾黏通常是因為該顆乳牙低於咬合平面，或者相對於對側牙延遲脫落。常見治療方式包含：定期追蹤，補綴物填補（用於恆齒缺失），拔牙，甚至矯正，只有少數文章提到使用脫位上來治療沾黏乳臼齒。本篇病例報告嘗試使用脫位方式來治療沾黏第二乳臼齒，成功使沾黏第二乳臼齒繼續萌發生長，並持續追蹤五年之臨床病例。

關鍵字

沾黏乳臼齒 ； 脫位治療 ； 咬合面低下

並列摘要

Ankylosed primary tooth is an anomaly of physiological structure. It occurs more commonly in molars, particular in the mandibular second molars. The incidence of ankylosis of one or more primary teeth varies between 1.5% and 9.9%, depending on the study cited. Ankylosed tooth in clinical is usually due to clinical features, such as infraocclusion or delay exfoliation. The treatment options include periodic follow up, prosthetic build up, extraction, and orthodontic treatment. Only a few papers pointed out luxation is a way to disrupt the area of ankylosis to improve infraocclsuion. In this case, luxation is successful and help ankylosed primary lower second molar erupting to its normal position.

並列關鍵字

Ankylosed primary molar ； luxation ； infraocclusion