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題名 | Evaluation of Maxillary Supernumerary Teeth for Pediatric Dental Patients by Cone Beam Computed Tomography=以錐狀射束電腦斷層分析兒童上顎贅生齒之特徵 |
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作者姓名(中文) | 顏慈儀; 張佩菁; 蔡蔭玲; 張佑良; | 書刊名 | 臺灣口腔顎面外科學會雜誌 |
卷期 | 26:4 2015.12[民104.12] |
頁次 | 頁240-250 |
分類號 | 416.92 |
關鍵詞 | 贅生齒; 上顎; 錐狀射束電腦斷層; 阻生; Supernumerary tooth; Maxilla; Cone beam computed tomography; Impaction; |
語文 | 英文(English) |
中文摘要 | 本研究目的為利用錐狀射束電腦斷層分析上顎區贅生齒之數目、位置、外型等特徵。研究對象為林口長庚兒童牙科2009~2013年間因贅生齒並且因治療為目的拍攝電腦斷層之244位病患,共328顆贅生齒。蒐集病患基本資料及贅生齒數目、位置、形狀及萌發方向,將資料整理並分析。研究結果顯示病患年齡介於三到十四歲之間,平均年齡為7.7歲。66.39%病患有一顆贅生齒,33.20%有兩顆贅生齒且0.41%有三顆。男性較好發,男女比為3.7:1。73.48%是位於顎側並且最常見於兩顆正中門齒之間。圓錐狀最常見(74.16%)且大部分是反向萌發(52.74%)。贅生齒大多是單一顆,圓錐狀且反向萌發。錐狀射束電腦斷層可以在術前提供贅生齒高解析且準確的位置,幫助我們進行治療。 |
英文摘要 | Aim: The study is to evaluate the number, location and morphologic characteristics of pediatric supernumerary teeth in the maxilla using cone beam computed tomography (CBCT). Materials and methods: There are 244 patients with a total of 328 supernumerary teeth examined by CBCT in the pediatric dental department of Chang Gung Memorial Hospital (CGMH), Taiwan between 2009 and 2013. Patient's demographic data was collected, and the number, location, shape and eruption direction were analyzed. Results: The age of patients ranges from 3 to 14 years with a mean age of 7.7 years. There are 66.39% of patients exhibited one single supernumerary tooth, while 33.20% had two and 0.41% had three supernumerary teeth. Male patients were more than females with a ratio of 3.7: 1. Among these supernumerary teeth, 73.48% were located at palatal side and between the maxillary incisors. The conical shape was the predominant type (74.16%) and most axis was inverted (52.74%). Conclusions: The occurrence of supernumerary teeth is mostly single, conical in shape and inverted. CBCT imaging provided significant and accurate information for pretreatment evaluation of supernumerary tooth. |
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