Study on Suitability of Grafted Bone Following Mandibular Reconstruction Evaluated According to Masticatory Performance Scores Using Half-Portion Gummy Jelly

Yoichiro Nakajima; Takaaki Ueno; Nahoko Kato-Kogoe; Kayoko Yamamoto; Nozomu Fukui; Yoshifumi Suwa; Yoshihiro Kimura; Yuichi Ito; Yasuko Takahashi; Shin Kasuya; Miwa Kanou; Haruhiko Terai; Tomoyuki Tano; Yasunori Ariyoshi

doi:10.2485/jhtb.25.427

Clinical Note

Study on Suitability of Grafted Bone Following Mandibular Reconstruction Evaluated According to Masticatory Performance Scores Using Half-Portion Gummy Jelly

Yoichiro Nakajima, Takaaki Ueno, Nahoko Kato-Kogoe, Kayoko Yamamoto, Nozomu Fukui, Yoshifumi Suwa, Yoshihiro Kimura, Yuichi Ito, Yasuko Takahashi, Shin Kasuya, Miwa Kanou, Haruhiko Terai, Tomoyuki Tano, Yasunori Ariyoshi

Author information

Yoichiro Nakajima
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Takaaki Ueno
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Nahoko Kato-Kogoe
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Kayoko Yamamoto
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Nozomu Fukui
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Yoshifumi Suwa
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Yoshihiro Kimura
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Yuichi Ito
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Yasuko Takahashi
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Shin Kasuya
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Miwa Kanou
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Haruhiko Terai
Division of Medicine for Function and Morphology of Sensor Organ, Dentistry and Oral Surgery, Osaka Medical College
Tomoyuki Tano
Department of Oral and Maxillofacial Surgery, Chugoku Central Hospital of Mutual Aid Association of Public School Teachers
Yasunori Ariyoshi
Department of Dentistry and Oral Surgery, Hirakata City Hospital

Keywords: Dental method, Mandibular reconstruction, Occlusal function evaluation, Plaster three dimensions model, Test gummy jelly

JOURNAL FREE ACCESS

2016 Volume 25 Issue 4 Pages 427-430

DOI https://doi.org/10.2485/jhtb.25.427

Details

Abstract

When performing mandibular reconstruction following mandibular segmentectomy, the surgical method that we have been using involves creating a surgical guide plate using a three dimensions model for bending the mandible reconstruction plate. It has been reported that the current method results in an excellent suitability of the graft into the mandible, which allows for a highly esthetic recovery. The purpose of the present study was to evaluate how well the current surgical method enables the grafted bone to suitability within the mandibular defect in terms of esthetics and functionality by measuring masticatory performance using a gummy score method. We enrolled 11 patients who had undergone mandibular reconstruction using the current method following mandibular tumorectomy at Osaka Medical College Hospital. Among them, 6 evaluable patients were examined using the gummy score method and occlusal force measurement two months after the operation. Gummy score evaluations were performed while masticating on a whole and then a half-portion gummy jelly, taking into account the decline in occlusal force. The results revealed a declining tendency in masticatory performance and occlusal force; however, adequate masticatory performance was obtained with the half-portion gummy jelly. We believe that the gummy score method using a test gummy jelly is a useful tool in evaluating whether a functionally good suitability between the grafted bone and the mandible has been achieved after mandibular reconstruction using the current method.

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