Influence of mandibular free-end partial edentulism on the force exerted on maxillary anterior teeth

• Arita Shuhei

  Harinakano Family Dentistry, Japan

• Gonda Tomoya

  Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Japan

• Togawa Hitomi

  Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Japan

• Maeda Yoshinobu

  Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Japan

• Ikebe Kazunori

  Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Japan

抄録

Purpose: The purpose of this study was to determine the influence of mandibular free-end partial edentulism and the wearing of removable partial dentures in the partially edentulous area on the force exerted on maxillary anterior teeth.<br> Methods: A commercially available jaw model with exchangeable teeth was used. Seven experimental conditions of mandibular free-end edentulism were set up and a distal extension removable partial denture to replace missing posterior teeth was fabricated. Strain gauges were attached to the root surface of the maxillary left central incisor, canine, first premolar and first molar, and the force exerted on them was calculated based on the calibration coefficient. An occlusal load of 49 N was applied and the forces were compared with the Kruskal–Wallis test (P < 0.05).<br> Results: The force exerted on the maxillary anterior teeth increased significantly as the number of remaining teeth decreased. The force exerted on the maxillary anterior teeth decreased significantly with use of a removable partial denture.<br> Conclusions: When the number of remaining teeth decreases in mandibular free-end partial edentulism, the burden on the maxillary anterior teeth increases. Our findings suggest that for patients with mandibular free-end partial edentulism, wearing a removable partial denture is effective in preserving the remaining teeth by reducing excessive stress.

収録刊行物

• Journal of Prosthodontic Research

  Journal of Prosthodontic Research 64 (4), 454-459, 2020

  公益社団法人 日本補綴歯科学会

キーワード

• Stress
• Strain
• Remaining teeth
• Free-end edentulism
• Removable partial denture
• Shortened dental arch

詳細情報

• CRID: 1390003825204934912
• NII論文ID: 130007886258
• DOI: 10.1016/j.jpor.2019.12.004
• ISSN: 18839207
• ISSN: 18831958
• Web Site: https://api.elsevier.com/content/article/PII:S1883195819302658?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S1883195819302658?httpAccept=text/plain
• Web Site: https://www.jstage.jst.go.jp/article/jpr/64/4/64_628/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2021182799
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可