Longitudinal analyses of composite resin restoration on erosive lesions: effect of dentin treatment with a chitosan nanoformulation containing green tea

Autor(es)

Renato Gonçalves dos Reis ^[1] ; Antônio Cláudio Tedesco ^[2] ; Fabiana Almeida Curylofo-Zotti ^[3] ; Thiago Vinicius Cortez ^[4] ; Hiago Salge Borges ^[5] ; Aline Evangelista Souza-Gabriel ^[6] ; Silmara Aparecida Milori Corona ^[7]

Afiliação do(s) autor(es)

^[1] University of São Paulo. Ribeirão Preto School of Dentistry. Department of Restorative Dentistry - Brasil

^[2] University of São Paulo. Faculty of Philosophy, Sciences and Letters of Ribeirão Preto. Center of Nanotechnology and Tissue Engineering - Brasil

^[3] University of São Paulo. Ribeirão Preto School of Dentistry. Department of Restorative Dentistry - Brasil

^[4] University of São Paulo. Ribeirão Preto School of Dentistry. Department of Restorative Dentistry - Brasil

^[5] University of São Paulo. Faculty of Philosophy, Sciences and Letters of Ribeirão Preto. Center of Nanotechnology and Tissue Engineering - Brasil

^[6] University of São Paulo. Ribeirão Preto School of Dentistry. Department of Restorative Dentistry - Brasil

^[7] University of São Paulo. Ribeirão Preto School of Dentistry. Department of Restorative Dentistry - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Braz. J. Oral Sci.; v. 22, 2023-01-06.

Resumo

Aim To evaluate the influence of the biomodification of erosive lesions with a chitosan nanoformulation containing green tea (NanoCsQ) on the clinical performance of a composite resin. Methods The study was performed in a split-mouth, randomized and double-blinded model with 20 patients with 40 erosive lesions. The patient’s teeth were randomized into two groups (n=20) according to the surface treatment: 1) Without biomodification (control), and 2) Biomodification with NanoCsQ solution (experimental). The lesions were restored with adhesive (Tetric N-bond, Ivoclar) and composite resin (IPS Empress Direct, Ivoclar). The restorations were polished and 7 days (baseline), 6 months, and 12 months later were evaluated according to the United States Public Health Service (USPHS) modified criteria, using clinical exam and photographics. Data were analyzed by Friedman’s and Wilcoxon signed-rank tests. Results No significant differences were found between the control and experimental groups (p=0.423), and also among the follow-up periods (baseline, six months, and 12 months) (p=0.50). Regarding the retention criteria, 90% of the restoration had an alpha score in the control group. Only 10% of the restorations without biomodification (control) had a score charlie at the 12-month follow-up. None of the patients reported post-operatory sensitivity. Conclusion The NanoCsQ solution did not negatively affect the performance of the composite resin restorations after 12 months. (AU)

• Processo FAPESP: 19/04807-2 - Função das proantocianidinas como nucleadores de biomineralização da dentina
• Beneficiário: Fabiana Almeida Curylofo Zotti
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 17/11582-1 - Biomodificação da dentina com nanopartículas de quitosana fosforilada (NanoQF) após remoção seletiva da lesão de cárie com laser de Er:YAG: Avaliação das propriedades antimicrobianas e físico-químicas.
• Beneficiário: Fabiana Almeida Curylofo Zotti
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado