Abstract
The color of dental restorative material should be maintained throughout its functional lifetime in an oral environment. However, the frequent use of mouthwash may affect the color stability of these composite restorations. The aim of this study is to assess the effects of using various mouthwashes on the color stability of various dental restorative composite materials. For this purpose, four mouthwashes/gels (Flocare gel (0.4% stannous fluoride), Pascal gel (topical APF fluoride), Pro-Relief mouthwash (sodium fluoride), and Plax Soin mouthwash (sodium fluoride)), and distilled water as a control, were selected. These were divided into five groups: Group 1: Flocare gel; Group 2: Pascal gel; Group 3: Pro-Relief mouthwash; Group 4: Plax Soin mouthwash; and Group 5: distilled water (control). Prepared restorative materials samples were immersed in the groups of mouthwashes/gels and the distilled water (control) for 24, 48, and 72 h. The discoloration that all materials exhibited with all immersion groups was significantly different at each of the three time periods for all groups (p < 0.05). Results from immersion in Flocare gel, Pascal gel, Pro-Relief mouthwash, and Plax Soin mouthwash were statistically significant (p < 0.05). The color change chroma was not significant for Pro-Relief and Plax Soin mouthwash (p > 0.05). Mouthwashes/gels affect color shifting for all composite resin materials, and changes are exaggerated over time. However, discoloration effects are not perceptible to the human eye.
Highlights
IntroductionThe demand for aesthetic restoration depends upon the reproduction of tooth shape and shade, as well as on maintaining the selected color throughout the restoration’s functional lifetime in the oral environment [1]
Patient awareness of dental aesthetics has been increasing for several years
The clinical performance of dental resin composites has been significantly improved in recent decades through innovations using nano-fillers to produce adequate strength and excellent wear resistance along with retaining translucency [2,6]
Summary
The demand for aesthetic restoration depends upon the reproduction of tooth shape and shade, as well as on maintaining the selected color throughout the restoration’s functional lifetime in the oral environment [1]. Introduced tooth-colored restorative material has been widely used to restore cavitated lesions in order to satisfy patients’ aesthetic demands [2]. After restorations, the frequent use of mouthwash could affect the color stability of these composite resin restorations [3]. The clinical performance of dental resin composites has been significantly improved in recent decades through innovations using nano-fillers to produce adequate strength and excellent wear resistance along with retaining translucency [2,6]. It is generally believed that a reduced filler size will increase resistance to discoloration, but one recent study showed that filler size did not affect color stability [7]
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