Spontaneous Eruption of Impacted Mandibular Canine and Premolar Associated with a Dentigerous Cyst-A Case Report

下顎犬齒與小臼齒阻生牙自發性萌出與含齒囊腫之相關性－病例報告

景煜翔(Yu-Shiang Jing) ； 陳亮如(Liang-Ru Chen)

《臺灣兒童牙醫學雜誌》 22卷1期 (2022/03) Pp. 86-92

https://doi.org/10.6319/TJPD.202203_22(1).0012

摘要

Pulpectomy is one of the most common treatment options for managing deep caries in primary dentition. Typically, the inflamed tissue and bacteria in the canal can be disinfected by pulpectomy. Nevertheless, it is difficult to achieve total elimination of what lies outside the canal system. Thereby, this becomes a main cause leading to the formation of radicular cyst or dentigerous cyst. In the case of an impacted tooth associated with the cyst, whether or not intervention with a forced eruption after removal of cyst depends on the formation of the root and the bone covering through the eruption pathway. The following case is an 11-year-old boy who had a dentigerous cyst blocking the eruption of both the right mandibular permanent canine and the first premolar. The spontaneous correction of these two teeth was achieved after extraction of the right mandibular primary canine and the first molar, together with surgical removal of the dentigerous cyst.

關鍵字

Pulpectomy ； primary molar ； dentigerous cyst ； spontaneous correction

並列摘要

牙髓切除術在面對深度乳牙齲齒時是一個重要的保存牙齒方法，但要將發炎的組織及細菌完全清除乾淨是不一定能達成的，未清除乾淨的組織及細菌有可能導致含齒囊腫及根尖囊腫的產生。如果囊腫導致恆牙產生遲延萌出，在移除囊腫之後是否需要矯正進行患齒的強逼萌出，需要考慮到患齒的牙根生成進度以及是否有骨頭覆蓋在萌出路徑上。本案例是一位11歲男童其右下犬齒及第一小臼齒因為含齒囊腫導致遲延萌出，在經過手術移除乳犬齒、乳臼齒及含齒囊腫後，恆牙自發性修正萌出。

並列關鍵字

牙髓切除術 ； 乳臼齒 ； 含齒囊腫 ； 自發性修正