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Treatment of crown-root fracture with a modified crown fragment reattachment technique

변형된 치관부 파절편 재부착술식을 이용한 치관치근파절의 치료

  • Song, Chang-Won (Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry) ;
  • Song, Min-Ju (Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry) ;
  • Shin, Su-Jung (Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry) ;
  • Park, Jeong-Won (Department of Conservative Dentistry, Gangnam Severance Hospital, Yonsei University College of Dentistry)
  • 송창원 (연세대학교 치과대학 보존과 강남세브란스 병원) ;
  • 송민주 (연세대학교 치과대학 보존과 강남세브란스 병원) ;
  • 신수정 (연세대학교 치과대학 보존과 강남세브란스 병원) ;
  • 박정원 (연세대학교 치과대학 보존과 강남세브란스 병원)
  • Received : 2010.07.15
  • Accepted : 2010.08.05
  • Published : 2010.09.30

Abstract

The development of adhesive dentistry has allowed that the crown fragment reattachment can be another option in the treatment of crown fracture. However, additional crown lengthening procedure or extrusion of the tooth may be necessary in the treatment of crown root fracture because subgingival fracture line in close proximity to the alveolar bone leads to challenges for restorative procedure and the violation of the biologic width. This case report presents a modified crown fragment reattachment technique of crown root fracture with pulp exposure, which was done without additional crown lengthening procedures. After the endodontic treatment, the patient was treated using a post insertion and the fragment reattachment technique, which made it possible to preserve the space for the biologic width and maintain a dry surgical field for adequate adhesion through the modification of the fractured coronal fragment. Since a coronal fracture was occurred and reattached afterward, it was observed that the coronal fragment was well maintained without the additional loss of periodontal attachment through 2-year follow up.

치관부 파절편 재부착술식은 접착치의학의 발달과 더불어 치관파절 치료 방법 중 하나로 자리매김하였다. 하지만 치관치근파절된 치아에 있어서 기존의 치관부 파절편 재부착술식으로는 치은연하 영역의 수복 및 생물학적 폭경의 유지가 어려워 부가적인 치관연장술 또는 치아 정출술 등이 요구되게 된다. 하지만 이번 증례보고는 치수노출을 동반한 치관-치근파절을 치료함에 있어서 이러한 부가적인 술식 없이 변형된 치관부 파절편 재부착술식만을 이용하여 처치한 사례이다. 환자는 근관치료 후 post 삽입 및 재부착 술식을 시행 받았으며 이때 치관 파절편의 변형을 통해 생물학적 폭경을 위한 공간 유지 및 적절한 접착을 위한 영역을 확보할 수 있었고 이후 한차례의 재파절이 발생하였지만 재차 재부착 후 2년간의 follow up을 통해 치주부착상실 없이 치관 파절편이 잘 유지되는 것이 관찰되었다.

Keywords

References

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