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2006 Fiscal Year Final Research Report Summary

Evaluation of Effectiveness of a Titanium Dioxide(TiO_2)-coated Acrylic Resin Denture Base

Research Project

Project/Area Number 17592044
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionTokyo Dental College

Principal Investigator

SUGIYAMA Tetsuya  Tokyo Dental College, Department of Removable Prosthodontics and Gerodontology, Assistant professor, 歯学部, 講師 (50216347)

Co-Investigator(Kenkyū-buntansha) SAKURAI Kaoru  Tokyo Dental College, Department of Removable Prosthodontics and Gerodontology, Professor, 歯学部, 教授 (20153950)
OGAMI Koichiro  Tokyo Dental College, Department of Removable Prosthodontics and Gerodontology, Assistant, 歯学部, 助手 (40366175)
UEDA Takayuki  Tokyo Dental College, Department of Removable Prosthodontics and Gerodontology, Assistant, 歯学部, 助手 (20366173)
KODAIRA Yorika  Tokyo Dental College, Department of Removable Prosthodontics and Gerodontology, Assistant, 歯学部, 助手 (40385141)
Project Period (FY) 2005 – 2006
KeywordsTitanium Dioxide(TiO_2) / The Aged / Denture Base / Cleaning of Denture / Oral Hygiene
Research Abstract

Materials and Methods : Two groups of acrylic resin denture base plate specimens were prepared: 1)the TiO_2-coated group, and 2)the Polished group made using a conventional polishing method. The surface roughness and contact angle of plate specimens from both groups were measured. Each plate was immersed in an experimental bolus. Subsequently, the amount of experimental bolus residue left on the surfaces of the plates after ultrasonic cleaning was compared between groups. The groups were further divided into two groups with and without ultraviolet-A ray irradiation during cleaning.
Results : The surface roughness of the TiO_2-coated group was greater than that of the Polished group. Inversely, the contact angle of the TiO_2-coated group was smaller than that of the Polished group (one-tenth that of the Polished group). There was a significant reduction in the experimental bolus residue ratio on the surfaces of the TiO_2-coated plates. The use of ultraviolet-A ray irradiation was not significantly different. The decrease in the experimental bolus residue ratio of the TiO_2-coated group was believed to be due to the considerable improvement in the wettability of the plates.
Conclusion : The TiO_2 coating on an acrylic resin denture base had a positive effect on its ease of cleaning by preventing the accumulation of experimental bolus residue.

  • Research Products

    (2 results)

All 2005

All Journal Article (2 results)

  • [Journal Article] Evaluation of Cleanability of a Titanium Dioxide(TiO_2) -coated Acrylic Resin Denture Base2005

    • Author(s)
      Daisuke Kado, Kaoru Sakurai, Tetsuya Sugiyama, Takayuki Ueda
    • Journal Title

      Prosthodontic Research & Practice Vol. 4, No. 1

      Pages: 69-76

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Evaluation of Cleanability of a Titanium Dioxide(TiO_2)-coated Acrylic Resin Denture Base2005

    • Author(s)
      Daisuke Kado, Kaoru Sakurai, Tetsuya Sugiyama, Takayuki Ueda
    • Journal Title

      Prosthodontic Research & Practice Vol.4, No.1

      Pages: 69-76

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2008-05-27  

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