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Longitudinal analyses of composite resin restoration on erosive lesions


Clinical trials as topic
Tooth erosion

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Reis RG dos, Tedesco AC, Curylofo-Zotti FA, Cortez TV, Borges HS, Souza-Gabriel AE, et al. Longitudinal analyses of composite resin restoration on erosive lesions: effect of dentin treatment with a chitosan nanoformulation containing green tea. Braz. J. Oral Sci. [Internet]. 2022 Nov. 9 [cited 2024 Jul. 24];22(00):e236839. Available from:


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.


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Copyright (c) 2022 Renato Gonçalves dos Reis, Antônio Cláudio Tedesco, Fabiana Almeida Curylofo-Zotti, Thiago Vinicius Cortez, Hiago Salge Borges, Aline Evangelista Souza-Gabriel, Silmara Aparecida Milori Corona


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