Bite force and masticatory performance using implant-supported overdentures after treatment of mandibular cancer

Tomoki Sumida, Yosuke Kobayashi, Akiko Ishikawa, Kozue Shinohara, Emi Matsumoto, Satoshi Kamakura, Yoshihide Mori

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Aim: To evaluate overdentures with regard to artificial restoration of oral function following mandibular cancer. Materials and Methods: We examined 32 patients who had undergone mandibular bone resection as treatment for malignancy and were using implant-supported overdentures. The patients were aged 55-87 years (mean=68.6) with a male to female ratio of 23:9. Marginal resection was performed in 29 patients and segmentectomy in 3. Results: Before and after using the attachment for overdenture, oral function differed significantly. After the setting of implant-retained overdentures, maximum bite force increased on average by 362% (average, from 16.2 N to 58.8 N; p<0.01). Xylitol gum examination showed a 363% increase in masticatory performance (average, 3.1 to 8.0 points; p<0.01). Conclusion: Implant-retained overdenture resulted in improved oral function, that was lost after treatment for mandibular cancer.

Original languageEnglish
Pages (from-to)4077-4080
Number of pages4
JournalAnticancer research
Volume36
Issue number8
Publication statusPublished - Aug 2016

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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