Color and gloss evaluation of titanium dioxide coating for acrylic resin denture base

Kazunari Mori; Masashi Tsuji; Takayuki Ueda; Kaoru Sakurai

doi:10.1016/j.jpor.2015.06.001

Abstract

^Purpose: ^We ^examined ^the ^clinical ^appearance ^(color, ^gloss, ^and ^surface ^roughness) ^of ^TiO2 coating on polymethyl methacrylate (PMMA) resin dentures. ^Methods: ^A ^spraying ^method, ^using ^air ^brushes, ^was ^used ^to ^generate ^thin ^uniform ^TiO2 ^coating. ^PMMA ^resin, ^{primer-coated} ^PMMA, ^and ^TiO2^-coated ^PMMA ^(with ^primer) ^speci-mens were compared. Results: The Commission Internationale de l'Eclairage (CIE) color system revealed color ^variations ^between ^the ^with/without ^coated ^samples. ^The ^TiO2^-coated ^PMMA ^specimendisplayed high levels of glossiness, highlighting the efficient self-cleansing actions of the denture. The measured surface roughness decreased upon primer coating, and increased ^following ^TiO2 ^{coating. Conclusions:} ^The ^thin ^TiO2 ^coating ^afforded ^high ^levels ^of ^glossiness ^while ^maintaining ^thecolor of the denture base material.

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