混合齒列下顎小臼齒區牙瘤之處理：病例報告

Management of Odontoma over mMandibular Premolar Area: A Case Report

謝春怡(Chun-Yi Hsieh) ； 施文宇(Wen-Yu Shih)

《臺灣兒童牙醫學雜誌》 15卷3期 (2015/10) Pp. 108-114

https://doi.org/10.6319/TJPD.2015.15(3).4

摘要

牙瘤是一種常見的混合齒源性腫瘤，含有牙釉質、牙本質及不定量的牙骨質和牙髓組織。當這些組織形成許多畸形類似牙齒的構造時，稱之為複合性牙瘤。本病例為一位10歲、混合齒列時期的男童，下顎小臼齒區因有複合性牙瘤導致其下方的第一小臼齒有異位萌發及阻生的可能性。透過早期的發現、X光片及電腦斷層判讀及空間分析後，在全身麻醉下以手術摘除牙瘤並配戴空間維持器。經術後追蹤，第一小臼齒自發性修正其萌發路徑，並順利地萌出。因此，避免牙瘤嚴重併發症的產生，建議及早發現並予以摘除。

關鍵字

牙瘤 ； 複合性牙瘤 ； 下顎小臼齒區

並列摘要

Odontoma is one of the common types of mixed odontogenic tumors. It is composed of enamel, dentin, and variable amounts of cementum and pulp tissue. A compound odontoma is composed of multiple small malformed tooth structures. This case is a 10-year-old boy in his mixed dentition, he had compound odontoma over mandibular premolar area which caused ectopic eruption and possible impaction of the underneath first permanent premolar. After early detection, radiographic (CT scan) diagnosis, and space analysis, the odontoma was removed under general anesthesia and the space maintainer was delivered. After surgery, the first premolar self-corrected the path of eruption and erupted. Early detection and removal of the odontoma is therefore recommended for preventing further serious complications.

並列關鍵字

odontoma ； compound odontoma ； mandibular premolar area