Journal of the Korean Association of Oral and Maxillofacial Surgeons

The Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회)
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CLINICAL STUDY OF MANDIBLE SYMPHYSIS WIDENING

외과적 하악 정중부 골신장술

  • Kwon, Kyung-Hwan (Department of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
  • Min, Seung-Ki (Department of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
  • Oh, Sung-Hwan (Department of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
  • Lee, Jun (Department of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University) ;
  • Cha, Jae-Won (Department of Oral & Maxillofacial Surgery, School of Dentistry, Wonkwang University)
  • 권경환 (원광대학교 치과대학 구강악안면외과학교실) ;
  • 민승기 (원광대학교 치과대학 구강악안면외과학교실) ;
  • 오승환 (원광대학교 치과대학 구강악안면외과학교실) ;
  • 이준 (원광대학교 치과대학 구강악안면외과학교실) ;
  • 차재원 (원광대학교 치과대학 구강악안면외과학교실)
  • Published : 2004.12.31
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Abstract

Mandibular symphyseal distraction osteogenesis is an alternative approach for correcting mandibular transverse deficiencies and dental crowding. The traditional approaches for these are extraction of teeth and arch expansion with traditional orthodontic treatment. Also extractions are usually unavoidable in patients with severe crowding. The purpose of this study is to evaluate the effect of mandibular symphyseal distraction osteogenesis by use of tooth-borne expansion appliance. All of 12 patients had been performed distraction osteogenesis. The surgical procedures were accomplished under local anesthesia and intravenous sedation in an ambulatory surgical setting using a routine distraction protocol. The latency period was 5 days or 7 days after symphyseal osteotomies. The rate & rhyth is a intermittent, 0.75mm or 1.0 mm per day and stabilized for 6, 8 weeks after distraction. The time of orthodontic tooth movement after distraction was variable from 2 weeks to 8 weeks (mean 3 weeks). All patients had been evaluated with study casts, plain periapical films, panorama radiograms before & after surgery. Mandibular symphyseal distraction osteogenesis increased mandibular arch width and corrected dental crowding, with paralleling tooth-borne movement, without proclination of the mandibular incisors.

Keywords

References

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