The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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Mandibular second and third molar protraction with orthodontic mini-implants: case report

교정용 미니임플란트를 이용한 하악 제2, 3대구치의 전방이동 : 증례보고

  • Choi, Sung-Kwon (College of Dentistry, Graduate School of Wonkwang University) ;
  • Kang, Kyung-Hwa (Department of Orthodontics, College of Dentistry, Wonkwang University)
  • 최성권 (원광대학교 일반대학원 치의학과) ;
  • 강경화 (원광대학교 치과대학 치과교정학교실)
  • Received : 2019.07.02
  • Accepted : 2019.08.22
  • Published : 2019.10.31
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Abstract

This case report describes the management of a 30-year-old woman with hopeless mandibular first molars and right maxillary second premolar. The treatment plan included mandibular second and third molar protraction after extraction of mandibular first molars. Mini-implants were placed between roots of first and second premolar. Sliding mechanics with lever arm was used to prevent inclination of molars. A good functional occlusion was achieved in 38 months without clinically significant side effects. Most of the extraction space of mandibular first molar was closed by protraction of second and third molars. The skeletal Class II pattern was improved by counterclockwise rotation of mandible through reduction of wedge effect. Mandibular molar protraction with orthodontic mini-implants in adequate cases would be a great alternative to prosthetic implant and reduce the financial and surgical burden of patients.

Keywords

References

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