Multiple Congenitally Missing Teeth Combined with Ectopic Eruption of Canines: Review of Literature and Report of a Case

多發性先天缺牙及犬齒異位萌發－文獻回顧及病例報告

陳秀真(Hsiu-Chen Chen)

《臺灣兒童牙醫學雜誌》 5卷4期 (2005/12) Pp. 157-164

https://doi.org/10.6319/TJPD.2005.5(4).4

摘要

先天性缺牙在臨床上是相當常見的情形，而同時在三個象限區域發生異位性萌出則是相對罕見。本病例報告是關於於一位11歲女童，共有八顆恆齒先天缺少（右上第二大臼齒及除了右上第一小臼齒外的所有小臼齒）；而她的三顆恆犬齒也同時有往第一小臼齒異位萌出的現象。本文亦回顧了造成先天性缺牙之原因及導致異位性萌出機轉的相關文獻。

關鍵字

先天性缺牙 ； 異位性萌出 ； 恆犬齒

並列摘要

Congenitally missing teeth are fairly common. Ectopic eruption patterns in three quadrants are relatively rare. This article reports an 11-year-old female patient, in which 8 permanent teeth are congenitally missing (upper right second molar and all premolars except upper right first premolar) and three canines except upper right canine are displaced to the position normally occupied by the first premolars. The possible causes of congenital missing teeth and the mechanisms of ectopic eruption were also reviewed.

並列關鍵字

Congenital Missing Teeth ； Ectopic Eruption ； Permanent Canines