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Color and gloss evaluation of titanium dioxide coating for acrylic resin denture base
Kazunari Mori1, Masashi Tsuji1, Takayuki Ueda1
1Department of Removable Prosthodontics & Gerodontology, Tokyo Dental College, Tokyo, Japan.
Purpose:
We examined the clinical appearance (color, gloss, and surface roughness) of TiO(2) coating on polymethyl methacrylate (PMMA) resin dentures.
Methods:
A spraying method, using air brushes, was used to generate thin uniform TiO(2) coating. PMMA resin, primer-coated PMMA, and TiO(2)-coated PMMA (with primer) specimens were compared.
Results:
The Commission Internationale de l'Eclairage (CIE) color system revealed color variations between the with/without coated samples. The TiO(2)-coated PMMA specimen displayed high levels of glossiness, highlighting the efficient self-cleansing actions of the denture. The measured surface roughness decreased upon primer coating, and increased following TiO(2) coating.
Conclusions:
The thin TiO(2) coating afforded high levels of glossiness while maintaining the color of the denture base material.
