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| 題 名 | 錯位上顎犬齒取代正中門齒--病例報告=Maxillary Canine Transposition to Maxillary Central Incisor: Case Report |
|---|---|
| 作 者 | 洪雅欣; 林雅婷; 林瑩澤; | 書刊名 | 臺灣兒童牙醫學雜誌 |
| 卷 期 | 11:3 2011.12[民100.12] |
| 頁 次 | 頁69-75 |
| 分類號 | 417.692 |
| 關鍵詞 | 牙齒錯位; 上顎犬齒; 彎曲門齒; Tooth transposition; Maxillary canine; Dilacerated incisor; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 牙齒錯位是指在同一象限的牙弓中,相鄰的牙齒位置互換造成齒列順序改變的情形,盛行率約為 0.13%-0.51%。牙齒錯位總是包含犬齒在內,在上顎牙弓主要發生在犬齒及第一小臼齒處(71%),常伴隨門齒阻生、缺牙、釘狀側門齒、鄰牙嚴重旋轉或位置不正、牙根彎曲或牙齒型態異常等症狀出現。此外,乳齒列外傷、局部病變如腫瘤、囊腫、乳犬齒延遲脫落及多生牙等也可能造成犬齒錯位。本病例報告主要是介紹一極少見上顎犬齒錯位至門齒病例,一位七歲女孩主訴上顎右側正中門齒久未萌出,病人有乳齒列外傷病史與贅生齒,在拔除正中贅生齒與上顎正中彎曲門齒後,發現犬齒錯位至正中門齒拔牙處,經過矯正牽引與犬齒改變外形成門齒,此錯位上顎犬齒成功地取代正中門齒。 |
| 英文摘要 | Transposition refers to the positional interchange of two adjacent teeth within the same quadrant, with the reported prevalence rates from 0.13% to 0.51%. Transposed first premolar and canine in the maxilla was most frequently reported (71%). Canine transpositions usually combine with Impaction of the incisors, missing teeth, peg-shaped lateral incisors, severe rotation or malposition of adjacent teeth, dilacerations and malformations. Local pathologic processes such as tumors, cysts, retained deciduous canines and supernumerary teeth might be responsible for canine transposition. This report presented a rare case of maxillary canine transposition to central incisor. A 7-year-old girl complained of uneruption of maxillary right central incisor. She had a history of supernumerary teeth and traumatic injury to the deciduous dentition. After extracting the dilacerated central incisor and the supernumerary tooth, the canine was transposed to the extraction site. Trough orthodontic traction combined with reshaping the tooth morphology, the transposed canine was successfully positioned into incisor position. |
本系統中英文摘要資訊取自各篇刊載內容。