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Vector-Controlled Alveolar Distraction Osteogenesis Using an Implant-Fixed Provisional Prosthesis: A Case Report

Kawashima, Wataru DDS*; Takayama, Kenichi DDS, PhD; Fujii, Ryosuke DDS; Matsubara, Yuuri DDS§; Kirita, Tadaaki DDS, DMSc

doi: 10.1097/ID.0b013e31827e782c
Clinical Science and Techniques

This is a case report of anterosuperior alveolar distraction using an implant-fixed provisional prosthesis. Osteotomy and placement of a distraction device were performed in a healthy 69-year-old woman. To avoid lingual inclination during the distraction period, the device's rod was buried in the labial side of a provisional prosthesis supported by posterior implants. The mandibular bone was obliquely distracted by 0.3 mm every 2 days. Implant insertion was performed, and a good prognosis was anticipated. Inclination is thought to be caused by soft tissue on the lingual side. Many reports propose methods to avoid inclination, but these methods require established support from the teeth and cannot be adapted for an edentulous case. The method reported here is useful for distraction osteogenesis because it can be adapted for edentulous cases.

*Part-time Staff, Department of Dentistry and Oral Surgery, Yata Cooperative Clinic, Osaka, Japan; PhD student, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.

Head, Department of Dentistry and Oral Surgery, Yata Cooperative Clinic, Osaka, Japan; Postdoctoral Fellow, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.

Chief Physician, Department of Dentistry and Oral Surgery, Yata Cooperative Clinic, Osaka, Japan; Research Student, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.

§Sub-chief Physician, Department of Dentistry and Oral Surgery, Yata Cooperative Clinic, Osaka, Japan; Research Student, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.

Professor, Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.

Reprint requests and correspondence to: Wataru Kawashima, DDS, Department of Dentistry and Oral Surgery, Yata Cooperative Clinic, 5-7-34 Yata, Higashisumiyoshi, Osaka 546-0023, Japan, Phone: +81-666961754, Fax: +81-666960826, E-mail: watack14@naramed-u.ac.jp

© 2013 Lippincott Williams & Wilkins, Inc.