Elif Aydogan Ayaz1, Subutay Han Altintas2, Sedanur Turgut3. 1. Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey. Electronic address: aydelif@hotmail.com. 2. Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey. 3. Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
Abstract
STATEMENT OF PROBLEM: Denture teeth have the most effect on the esthetics of complete dentures. However, extrinsic factors can change their roughness and color. PURPOSE: The purpose of this study was to investigate the effects of smoking and denture cleaners on the roughness and color (CIE [Commission International de I'Eclairage] L*a*b*) of denture teeth. MATERIAL AND METHODS: Maxillary central incisors made of acrylic resin, high-strength acrylic resin, and porcelain (Acrylux, SR, Orthosit PE-O, and Enta) were divided into 4 groups (n=10): control, denture cleaner, cigarette smoke, and cigarette smoke and denture cleaner. The dental cleaner group and cigarette smoke and dental cleaner group were immersed in denture cleaner (Protefix; Queisser Pharma) for 15 minutes; the cigarette smoke group and cigarette smoke and dental cleaner group were exposed to smoke from 20 cigarettes for 10 minutes per cigarette. The roughness was measured with a profilometer, and the color was measured with a colorimeter. The CIE L*a*b* values were recorded. The data were analyzed with a 3-way ANOVA and the Fisher least significant difference test (α=.05). RESULTS: The roughness of Acrylux, SR Orthosit PE-O (P<.001), and Enta (P<.01) was significantly higher in the cigarette smoke group and dental cleaner group than in the control group. Immersion in denture cleaner after exposure to cigarette smoke decreased the roughness of Acrylux, SR Orthosit PE-O (P<.001), and Enta (P<.01). The greatest color change (7.94) was observed in Acrylux in the cigarette smoke group, whereas the smallest color change (0.24) was in Enta in the control group. The color change of all of the teeth in the cigarette smoke group decreased after exposure to denture cleaner (P<.05). The L* decreased, and the a* and b* increased after exposure to smoke (P<.05). CONCLUSIONS: Smoking and denture cleaner increased the roughness and discolored the teeth, whereas denture cleaners after exposure to smoke decreased the roughness.
STATEMENT OF PROBLEM: Denture teeth have the most effect on the esthetics of complete dentures. However, extrinsic factors can change their roughness and color. PURPOSE: The purpose of this study was to investigate the effects of smoking and denture cleaners on the roughness and color (CIE [Commission International de I'Eclairage] L*a*b*) of denture teeth. MATERIAL AND METHODS: Maxillary central incisors made of acrylic resin, high-strength acrylic resin, and porcelain (Acrylux, SR, Orthosit PE-O, and Enta) were divided into 4 groups (n=10): control, denture cleaner, cigarette smoke, and cigarette smoke and denture cleaner. The dental cleaner group and cigarette smoke and dental cleaner group were immersed in denture cleaner (Protefix; Queisser Pharma) for 15 minutes; the cigarette smoke group and cigarette smoke and dental cleaner group were exposed to smoke from 20 cigarettes for 10 minutes per cigarette. The roughness was measured with a profilometer, and the color was measured with a colorimeter. The CIE L*a*b* values were recorded. The data were analyzed with a 3-way ANOVA and the Fisher least significant difference test (α=.05). RESULTS: The roughness of Acrylux, SR Orthosit PE-O (P<.001), and Enta (P<.01) was significantly higher in the cigarette smoke group and dental cleaner group than in the control group. Immersion in denture cleaner after exposure to cigarette smoke decreased the roughness of Acrylux, SR Orthosit PE-O (P<.001), and Enta (P<.01). The greatest color change (7.94) was observed in Acrylux in the cigarette smoke group, whereas the smallest color change (0.24) was in Enta in the control group. The color change of all of the teeth in the cigarette smoke group decreased after exposure to denture cleaner (P<.05). The L* decreased, and the a* and b* increased after exposure to smoke (P<.05). CONCLUSIONS: Smoking and denture cleaner increased the roughness and discolored the teeth, whereas denture cleaners after exposure to smoke decreased the roughness.