Dentigerous Cyst Associated with a Mesiodens Presenting as a Hard Palatal Mass-Case Report

以硬顎漸進式腫塊為表現之正中贅生牙合併含齒囊腫－病例報告

吳伯軒(Po-Hsuan Wu) ； 廖立人(Li-Jen Liao) ； 鄭博文(Po-Wen Cheng)

《台灣耳鼻喉頭頸外科雜誌》 56卷2期 (2021/06) Pp. 129-134

https://doi.org/10.6286/jtohns.202106_56(2).129

摘要

A dentigerous cyst is a type of developmental odontogenic cyst that results from fluid accumulation between the tooth crown and reduced enamel epithelium. It is the second most common type of odontogenic cyst, and is most commonly seen in association with mandibular third molars and maxillary canines. A mesiodens is a supernumerary tooth located in the maxillary central incisor region. Dentigerous cysts developing around supernumerary teeth are rare, and among them, mesiodentes are the most frequent type. We report a 52-year-old female patient with no known systemic diseases who came to our out-patient clinic presenting with a slowly progressive swelling in the hard palate that had occurred over the past year. She also complained of numbness in the palatal area. The computed tomographic exam showed a 3.1-cm cystic lesion with a central unerupted tooth in the middle-right hard palate. The cyst was marsupialized via a transnasal and transoral sublabial approach, together with the removal of the supernumerary tooth, and the patient remained asymptomatic with no complications three months after the operation.

關鍵字

dentigerous cyst ； mesiodens

並列摘要

含齒囊腫是一種由於萎縮釉上皮與牙冠之間，發生液體聚集而產生的齒源性囊腫。它是第二常見的齒源性囊腫，且最常見於下顎第三大臼齒及上顎犬齒。正中贅生牙的定義為一種位於上顎正中門牙區域的多生牙。發生於多生牙周遭的含齒囊腫相當少見，其中又以正中贅生牙為最常見的種類。在這篇文章中，我們報告1名52歲無已知系統性疾病之女性，因最近一年來硬顎緩慢且漸進式腫脹而前來求診。她同時也抱怨有硬顎區域麻痛的症狀。經電腦斷層檢查發現一個直徑3.1 cm、內含一未萌齒的囊腫位於病患正中偏右側硬顎。該囊腫及多生牙透過經鼻及唇下手術方式完成造袋術及多生牙移除術。病患於手術後症狀緩解且追蹤3個月無併發症。

並列關鍵字

dentigerous cyst ； mesiodens（含齒囊腫 ； 正中贅生牙）