上顎阻生犬齒的處理－兩病例報告

Management of Impacted Canines - Two Case Report

洪曼蓉(Man-Jung Hung) ； 蔡恆惠(Hung-Huey Tsai)

《臺灣兒童牙醫學雜誌》 19卷2期 (2019/06) Pp. 47-54

https://doi.org/10.6319/TJPD.201906_19(2).0001

摘要

上顎犬齒是除了下顎智齒外最易阻生的牙齒，發生率約為1.5%。本文提出兩相關病例報告。案例一為9歲男童，由家長帶至門診主訴為發現上顎雙側犬齒有阻生情況。經與家長討論後，決定於門診動手術，把雙側犬齒暴露並以矯正拉出。經過兩年的治療後，雙側犬齒皆移到適當的位置，且X光片顯示牙根持續生長且牙周狀況正常。案例二為9歲女童，經X光檢查發現，左上犬齒有阻生傾向。經拔除左上乳犬齒後10個月，X光已可見到左上犬齒方向回正。後續追蹤左上犬齒亦順利萌出。本文亦討論上顎阻生犬齒的相關因素及常見處理方式。

關鍵字

阻生齒 ； 上顎犬齒 ； 矯正治療 ； 埋伏齒露出

並列摘要

The maxillary permanent canine is second only to the mandibular third molar in its frequency of impaction with a prevalence of about 1.5% 1. This article presents two cases with impacted maxillary canines. Case 1: 9-year-old boy with two impacted maxillary canines. In order to retraction the impacted maxillary canines, orthodontic treatment was followed after surgical exposure of upper permanent canine. After 2 years, both canines moved into proper position and remain vital, responding normally to percussion and sensitivity test clinically. Both teeth showed continuous root formation and have normal periodontal health. Case 2: 9-year-old girl with one impacted maxillary canine. After 10 months of primary maxillary canine extraction, the impacted canines moved into proper position. The clinical manifestations and common treatment options of impacted maxillary canines were also addressed.

並列關鍵字

Ectopic Teeth ； Orthodontic Treatment ； Surgically Exposure