Luís Eduardo Silva Soares1,2, Ana Lúcia Silva Soares1, Rodrigo De Oliveira1, Sidnei Nahórny1. 1. Universidade Do Vale Do Paraíba, UNIVAP, Research and Development Institute, IP&D Laboratory of Biomedical Vibrational Spectroscopy, LEVB, São José Dos Campos, São Paulo, Brazil. 2. Universidade Do Vale Do Paraíba, UNIVAP, Faculty of Healt & Sciences, FCS, School of Dentistry, São José Dos Campos, São Paulo, Brazil.
Abstract
OBJECTIVES: FT-Raman spectroscopy and scanning electron microscopy (SEM) were employed to test the hypothesis that the beverage consumption or mouthwash utilization would change the chemistry of dental materials and enamel inorganic content. MATERIAL AND METHODS: Bovine enamel samples (n = 36) each received two cavity preparations (n = 72), each pair filled with one of three dental materials (R: nanofilled composite resin, GIC: glass-ionomer cement, RMGIC: resin-modified GIC). Furthermore, they were treated with three different solutions (S: artificial saliva, E: erosion/Pepsi Twist or EM: erosion + mouthwash/Colgate Plax). RESULTS: Reduction of carbonate content of enamel was greater in RE than RS (P < 0.01). Increment of carbonate was greater in GICEM than in GICE and GICS (P < 0.01; P < 0.001). Significant material degradation was found in RE, REM, GICE, and GICEM than in RS and GICS (P < 0.01; P < 0.001). SEM showed clear enamel demineralization after erosion. Material degradation was greater after E and EM than S. GIC and RMGIC materials had a positive effect against acid erosion in the adjacent enamel after remineralization with mouthwash. CONCLUSIONS: The beverage and mouthwash utilization would change R and GIC chemical properties. CLINICAL RELEVANCE: A professional should periodically monitor the glass-ionomer and resin restorations, as they degrade over time under erosive challenges and mouthwash utilization. Microsc. Res. Tech., 2016.
OBJECTIVES: FT-Raman spectroscopy and scanning electron microscopy (SEM) were employed to test the hypothesis that the beverage consumption or mouthwash utilization would change the chemistry of dental materials and enamel inorganic content. MATERIAL AND METHODS:Bovine enamel samples (n = 36) each received two cavity preparations (n = 72), each pair filled with one of three dental materials (R: nanofilled composite resin, GIC: glass-ionomer cement, RMGIC: resin-modified GIC). Furthermore, they were treated with three different solutions (S: artificial saliva, E: erosion/Pepsi Twist or EM: erosion + mouthwash/Colgate Plax). RESULTS: Reduction of carbonate content of enamel was greater in RE than RS (P < 0.01). Increment of carbonate was greater in GICEM than in GICE and GICS (P < 0.01; P < 0.001). Significant material degradation was found in RE, REM, GICE, and GICEM than in RS and GICS (P < 0.01; P < 0.001). SEM showed clear enamel demineralization after erosion. Material degradation was greater after E and EM than S. GIC and RMGIC materials had a positive effect against acid erosion in the adjacent enamel after remineralization with mouthwash. CONCLUSIONS: The beverage and mouthwash utilization would change R and GIC chemical properties. CLINICAL RELEVANCE: A professional should periodically monitor the glass-ionomer and resin restorations, as they degrade over time under erosive challenges and mouthwash utilization. Microsc. Res. Tech., 2016.
Authors: Ana Theresa Queiroz de Albuquerque; Bruna Oliveira Bezerra; Isabelly de Carvalho Leal; Maria Denise Rodrigues de Moraes; Mary Anne S Melo; Vanara Florêncio Passos Journal: Restor Dent Endod Date: 2022-07-01