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頁籤選單縮合
題名 | 恆牙齒列之先天性缺牙=Congenitally Missing Teeth in Permanent Dentition |
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作者姓名(中文) | 賈孝範; 吳修慧; | 書刊名 | 牙醫學雜誌 |
卷期 | 18:1 1998.03[民87.03] |
頁次 | 頁38-42 |
分類號 | 416.94 |
關鍵詞 | 先天性缺牙; Congenitally missing tooth; Hypodontia; Oligodontia; |
語文 | 中文(Chinese) |
中文摘要 | 先天性缺牙除第三大臼齒外之盛行率在百分之七左右,雖然產生的原因眾多,仍 以遺傳為主因。確切的診斷多藉由全口環照攝影察覺。治療的方式有留住乳齒、矯正治療、 �G復體取代、自體移植牙、植牙體等方式。成長中的孩童以矯正治療或自體移植牙為佳,先 天性缺牙亦可提供全身性遺傳徵候群之診斷先機,如外胚層發育異常、唐氏症等等合併先天 性缺牙的產生。 |
英文摘要 | The frequency of congenitally missing teeth is about 7% except permanent 3 molar. The most commonly missing tooth is the mandibular 2 premolar, followed by the maxillary lateral incisor, then the maxillary 2 premolar. Aberrant or diminished tooth size frequently is found with these individuals. The definitive diagnosis is made by radiograph, such as panoramic radiograph, maxillary occlusal film and multiple regional periapical films. The treatment options may include leaving the primary tooth permanently to replace the missing permanent tooth, orthodontic treatment, prosthetic treatment, autotransplantation and autotransplantation are better alternatives for growing children. Sometimes congenitally missing teeth may appear in a few syndromes such as Downs' syndrome, ectodermal dysplasia, Ellis-van Crevld syndrome. |
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