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Biocompatibility of a titanium dioxide-coating method for denture base acrylic resin

Tsuji, Masashi ; Ueda, Takayuki ; Sawaki, Kohei ; Kawaguchi, Mitsuru ; Sakurai, Kaoru

Gerodontology, 2016-12, Vol.33 (4), p.539-544 [Periódico revisado por pares]

England: Blackwell Publishing Ltd

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  • Título:
    Biocompatibility of a titanium dioxide-coating method for denture base acrylic resin
  • Autor: Tsuji, Masashi ; Ueda, Takayuki ; Sawaki, Kohei ; Kawaguchi, Mitsuru ; Sakurai, Kaoru
  • Assuntos: Acrylic Resins - chemistry ; Animals ; biocompatibility ; coated materials ; Dentistry ; Dentistry - methods ; Denture Bases ; dentures ; geriatric dentistry ; Humans ; Materials Testing ; Polymethyl Methacrylate - chemistry ; Surface Properties ; Titanium - chemistry ; titanium dioxide
  • É parte de: Gerodontology, 2016-12, Vol.33 (4), p.539-544
  • Notas: ArticleID:GER12204
    JSPS KAKENHI - No. 25861868
    istex:DB3157584CC41D7BEEDF254E3B97E19537FFDC84
    ark:/67375/WNG-3CTHMDZ4-Q
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Objectives Ease of denture cleaning is of paramount importance in geriatric patients and those with limited dexterity. We have previously investigated methods of coating dentures with titanium dioxide (TiO2) and reported the effects (self‐cleaning and antibacterial) of such treatments in in vitro studies. This study was to verify the biocompatibility of a TiO2‐coated acrylic resin produced by the new coating method with spray‐coating technique. Methods Specimens were prepared from denture base acrylic resin and polished up to grit #1000. The TiO2‐coating agent was sprayed onto the specimens using an airbrush gun. Specimens were then divided into ‘polymethyl methacrylate (PMMA)’, ‘primer‐coated PMMA’ and ‘TiO2‐coated PMMA’ groups to be evaluated for biological safety using a hamster oral mucosa irritation test, a guinea pig skin sensitisation test and a rabbit intracutaneous test. The biological reaction was scored. Results Reaction scores were considerably <1.0, the acceptable limit set by the ISO, in all three tests. Indeed, in most samples, there was no deleterious effect at all. Conclusion These results tested on animals demonstrate that denture base resin coated with TiO2 by this method does not cause irritation or sensitisation of the oral mucosa, skin or intracutaneous tissue and is therefore good biocompatibility for use in close proximity to oral mucosa and skin.
  • Editor: England: Blackwell Publishing Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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