IATROGENIC IMPACTION OF LOWER LEFT PERMANENT CANINE : CASE REPORT

하악 영구 견치의 의원성 매복에 대한 증례 보고

  • Kim, Song-Yi (Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University) ;
  • Choi, Sung-Chul (Institute of Oral Biology, School of Dentistry, Kyung Hee University) ;
  • Choi, Yeong-Chul (Institute of Oral Biology, School of Dentistry, Kyung Hee University) ;
  • Park, Jae-Hong (Institute of Oral Biology, School of Dentistry, Kyung Hee University)
  • 김송이 (경희대학교 치과대학 소아치과학교실) ;
  • 최성철 (경희대학교 치과대학 구강생물학연구소) ;
  • 최영철 (경희대학교 치과대학 구강생물학연구소) ;
  • 박재홍 (경희대학교 치과대학 구강생물학연구소)
  • Published : 2008.05.30

Abstract

When a delayed eruption of tooth is diagnosed, the causative factor should be detected before an establishment of treatment plan, if possible. Although a panoramic radiograph is enough to evaluate the position of tooth and the stage of tooth development, a 3-D Dental CT would be a powerful tool to reveal a spatial relationships between objects. The reported case showed a delayed eruption of lower left permanent canine and a mini-plate with screws adjacent to the impacted canine. Although the screws adjacent to the root of impacted tooth showed a close proximity, it was not presumed that these screws would interfere the eruption of the tooth. The impacted canine did not show any spontaneous eruption during observation. After the mini-plate and screws were removed, an orthodontic traction using elastic power chain was performed. The position of mini-plates and screws should be carefully designed to avoid damaging the tooth follicles or tooth roots in the jaw. Also the screws should be removed before an orthodontic traction to prevent damaging the root surface of impacted tooth.

상악 영구 견치의 매복에 비해 하악 영구 견치의 매복은 매우 드물게 일어난다. 치아가 매복된 경우 장애물 존재 여부와 매복 위치와 방향, 맹출 가능한 공간의 유무, 치근의 형성 단계 등의 요소에 따라 매복 치아의 발거 혹은 장애물의 제거 후 주기적 관찰, 맹출이 지연된 치아의 외과적 노출, 교정적 견인 등의 방법으로 치료하게 된다. 본 증례는 하악골의 골절 부위에 시행된 골간 강선 결찰과 미니 플레이트에 의해 하악 좌측 견치가 매복되어 있었던 경우로 CT 검사 결과 하악 정중부위 플레이트의 스크류가 맹출을 방해하고 있는 것으로 판단되어 전신 마취 하에 플레이트를 제거하였다. 이후 자연적인 맹출을 기대하였으나, 맹출력이 부족하여 교정적 견인으로 양호한 결과를 얻었기에 보고하는 바이다.

Keywords

References

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