Use of a replica graft tooth for evaluation before autotransplantation of a tooth. A CAD/CAM model produced using dental-cone-beam computed tomography

Honda, M.; Uehara, H.; Uehara, T.; Honda, K.; Kawashima, S.; Honda, K.; Yonehara, Y.

doi:10.1016/j.ijom.2010.06.002

« Previous Next »International Journal of Oral & Maxillofacial Surgery
Volume 39, Issue 10 , Pages 1016-1019, October 2010

Use of a replica graft tooth for evaluation before autotransplantation of a tooth. A CAD/CAM model produced using dental-cone-beam computed tomography

M. Honda
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
- Address: Masahiko Honda, Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8301, Japan. Tel.: +81 3 3219 8102; Fax: +81 3 3219 8355.
H. Uehara
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
T. Uehara
- Department of Community Dentistry, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
K. Honda
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
S. Kawashima
- Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
K. Honda
- Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan
Y. Yonehara
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, Japan

Accepted 2 June 2010. published online 14 July 2010.

Abstract

A 33-year-old man was referred by a local dentist for autotransplantation of the right mandibular third molar to the site of the left mandibular first molar. Before the operation, dental-cone-beam computed tomography was performed to measure the dimensions of the graft tooth and the bone volume of the socket. The three-dimensional (3D) structure of the graft tooth was created from the 3D imaging data. A replica of the graft tooth was produced using a stereolithographic CAD/CAM system before autotransplantation. A socket of the appropriate size and structure was created and the graft tooth was extracted immediately before grafting. This procedure shortened the time needed to fit the graft tooth into the socket and reduced injury to the periodontal membrane. The postoperative outcomes of autotransplantation of the tooth were good.

Keywords: replica, autotransplantation of tooth, CAD/CAM model