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  • Intern and extern changes after treatment of icon infiltration resin : a systematic review and meta-analysis
    Publication . Soveral, Madalena dos Santos Vargas; Manso, Ana Cristina; Machado, Vanessa
    Introduction: White spot lesion represents the first visual alteration in the enamel caused by caries. The progression of these lesions can be arrest with non-invasive treatments before cavitation. The thesis aims to analyze changes in the enamel after applying the infiltrant resin in white spot lesions, namely penetration depth, surface roughness, microhardness, and shear bond strength. Materials and Methods: The search was conducted in Medline, Pubmed, Cochrane Central Register of Controlled Trials, Embase, Web of Science, Scholar, and LILACS until May 2021. In-vitro studies that assess depth penetration, roughness, microhardness, and shear strength before and after resin infiltration were included. Methodological quality was evaluated using the Joanna Briggs Institute Clinical Appraisal Checklist for Experimental Studies. Pairwise ratio of means meta-analyses allowed evaluating of the enamel properties, before and after resin infiltration, on enamel surfaces with and without white spot lesions. Results: From a total of 1604 articles, 48 were included for meta-analytic quantitative evaluation. In the parameter of enamel surface roughness there was an improvement by 35% in sound enamel (95% CI: 0.49-0.85, p<0.0021) and 54% (95% CI: 0.29; 0.74, 0.0012) in white spot lesions. Enamel microhardness was reduced by 24% (95% CI: 0.73; 0.80, p<0.001) and increased by 68% (95% CI: 1.51; 1.86, p<0.001) in white spot lesions. Shear strength in enamel was reduced by 25% in sound enamel (95% CI: 0.60; 0.95, p<0.001) and increased by 89% (95% CI: 1.28; 2.79, p<0.001) in white spot lesions. At penetration depth, the application of infiltrating resin led to occlusion of 65.39% (95% CI: 56.11; 74.66, p=0.01, I2=100%) of the white spot lesion. Conclusions: The application of infiltrating resin promotes recovery of enamel properties, both in healthy enamel and in white spot lesions. In the future, studies with defined protocols and appropriate controls are needed with long-term follow-ups.
    2021-10Dissertação de mestrado Acesso aberto Ver mais