Crown lengthening for altered passive eruption

치관 확장술을 통한 변형된 수동적 맹출의 치료

  • Yim, Ju-Young (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Kim, Tae-Il (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Seol, Yang-Jo (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Lee, Yong-Moo (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Ku, Young (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Rhyu, In-Chul (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Chung, Chong-Pyoung (Department of Periodontology, School of Dentistry, Seoul National University) ;
  • Han, Soo-Boo (Department of Periodontology, School of Dentistry, Seoul National University)
  • 임주영 (서울대학교 치의학대학원 치주과학교실) ;
  • 김태일 (서울대학교 치의학대학원 치주과학교실) ;
  • 설양조 (서울대학교 치의학대학원 치주과학교실) ;
  • 이용무 (서울대학교 치의학대학원 치주과학교실) ;
  • 구영 (서울대학교 치의학대학원 치주과학교실) ;
  • 류인철 (서울대학교 치의학대학원 치주과학교실) ;
  • 정종평 (서울대학교 치의학대학원 치주과학교실) ;
  • 한수부 (서울대학교 치의학대학원 치주과학교실)
  • Published : 2008.06.30

Abstract

Purpose: Passive eruption is characterized by the apical shift of the dentogingival junction. As this occurs, the length of the clinical crown increases as the epithelial attachment migrates apically. Altered passive eruption occurs when the margin of gingiva is malpositioned incisally on the anatomic crown in adulthood and results in excessive gingiva. The purpose of this article is to evaluate esthetic results of crown lengthening procedure in altered passive eruption.s. Materials and Methods: Three patients who complained "My front teeth look too short" were included. Bone sounding with periodontal probe revealed that alveolar bone crest was close to CEJ. Based on the diagnostic information, a diagnosis of altered passive eruption was made. They were performed apically positioned flap procedure with osseous resection. Results: Six months later, all patients achieved favorable esthetic results and gingival margins were healthy and stable. Conclusion: When the diagnostic procedures reveal alveolar bone crest levels approximating the CEJ, apically positioned flap procedure with osseous resection is indicated.

Keywords

References

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