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題名 | 出生牙:一病例報告及文獻回顧=Natal Teeth: A Case Report and Literature Review |
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作者 | 李忠興; 楊晉昱; | 書刊名 | 國防醫學 |
卷期 | 30:3 2000.03[民89.03] |
頁次 | 頁244-250 |
分類號 | 416.93 |
關鍵詞 | 出生牙; 新生牙; 里加費臺病; 牙釉質發育不全; Natal tooth; Neonatal tooth; Riga-fide disease; Enamel hypoplasia; |
語文 | 中文(Chinese) |
中文摘要 | 出生牙之定義為嬰兒一出生在口腔內已萌發的牙齒,其發生的原因不詳,較有可能的機轉為初期牙胚位置長的比較淺層所致。發生機率具有很大的差異性,約從1:11.25到1:300000不等。出生牙大多是屬於過早萌發的乳牙。臨床上,可見到出生牙為發育較差、小圓錐狀、色黃,伴隨牙釉質、牙本質發育不全。組織學表徵上可見出生牙的牙釉質可能是鈣化正常或發育不全。本篇報告中所提出的病例為出生一天的男嬰,口腔的下顎門牙區有二顆部分萌發之出生牙,有餵奶的干擾,放射線檢查發現鈣化較低,牙根發育較差,因為其他乳齒,可能為正常乳齒。治療方式為拔除右側下顎中門齒,左側正中門齒保留,並定期追蹤檢查。 |
英文摘要 | The natal teeth are defined as the presence of teeth a birth and the etiology is rather obscure. The condition is probably attributed to a superficial position of the formation of the tooth germ involved. The incidence of natal teeth varies greatly, about one case in 11.28-300,000births. Natal teeth may resemble normal primary teeth. Clinically, the teeth show poorly developed, small, conical, yellowish brown opaque, and have hypoplastic enamel and dentin, they reveal an immature appearance. The histologic aspect show enamel with the possibility of presenting normal mineral-ization or being hypoplastic. This report demonstrates an one-day-old male baby with two partially erupted natal teeth over mandibular incisor area. The presence of teeth interfered with the normal nursing. Radiographic examination showed that the erupted teeth had little radiopactiy, and poor radicular formation. There are no other primary teeth presented on the radiograph, these two natal teeth may be normal primary dentition. The treatment modality was the extraction of the right mandibular central incisor and the retention of the left mandibular central incisor and periodic monitoring. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。