Journal of Oral Tissue Engineering

Clinical Analysis of Surgical Guide Plate to Provide Bone Suitability in Mandibular Reconstruction

Yoichiro NAKAJIMA1, Takaaki UENO1, Nahoko KATO-KOGOE1, Kayoko YAMAMOTO1, Nozomu FUKUI1, Yoshifumi SUWA1, Yoshihiro KIMURA1
, Yuichi ITO1, Yasuko TAKAHASHI1, Shin KASUYA1, Miwa KANOU1, Haruhiko TERAI1, Tomoyuki TANO2, and Yasunori ARIYOSHI3

1Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College, Osaka, Japan
2Department of Oral and Maxillofacial Surgery, Chugoku Central Hospital of Mutual Aid Association of Public School Teachers, Osaka, Japan
3Department of Dentistry and Oral Surgery, Hirakata City Hospital, Osaka, Japan

J Oral Tissue Engin 2016; 14(1): 51 - 58.

When performing mandibular reconstructive surgery, differences between the curve of the mandible and straight bone graft often affect the suiting of the mandible reconstruction plate, making the suiting of the bone graft to the mandible difficult. Poor plate-to-bone suitability affects postoperative mastication, leading to a marked decrease in the postoperative quality of life. In response to this problem, we used 3-dimensional models of the donor bone and mandible to reproduce the shape of the reconstructed mandible before surgery. Based on this model, we then used surgical measures, such as creating a surgical guide plate, to reproduce the curvature of the mandibular reconstruction plate and mandibular position and occlusion. Of thirteen patients who underwent mandibular reconstruction using this method at our hospital, evaluation was possible for ten patients. These patients underwent evaluation of functions, including masticatory performance and occlusal force. Results showed that masticatory function was maintained at a high level using this method, indicating a good bone suitability.

Key words: Dental technique, Head and neck cancer, Mandibular reconstruction, Medical team approach, Plaster 3D model