In Vitro Effect of Simulated Tooth Brushing and Children’s Mouth Rinses on Physical Properties of Glass Ionomer Cement

• Published in: The Journal of clinical pediatric dentistry Vol. 44; no. 5; pp. 342 - 347
• Main Authors: Silva, Natyla ML, Costa, Victor G, Gonçalves, Letícia M, Gomes, Isabella A, Paschoal, Marco Aurélio B
• Format: Journal Article
• Language: English
• Published: Birmingham Journal of Clinical Pediatric Dentistry 01.09.2020
• Subjects: Dental cement; Dental schools; Dentistry; Mouth; Oral hygiene; Pediatrics; Physical properties; Sample size
• ISSN: 1053-4628; 1557-5268
• DOI: 10.17796/1053-4625-44.5.8

Objective: The present study investigated the erosive potential of children’s mouthrinses on glass ionomer cement (GIC) samples after simulated toothbrushing. Study design: Forty round-shaped samples of GIC were divided into 3 groups: G1- cetylpyridinium chloride, G2- xylitol and triclosan and G3–Malva sylvestris and xylitol and G4–distilled water as a control group. Prior to the main tests, the samples were submitted to the surface roughness measurement (Ra) and weight analysis (W). Afterward, they were brushed twice day (2× / day) for 15 days and immersed in mouthrinses after the last daily brushing. The final surface roughness (R2) and weight (W2) were determined after completing the tooth brushing-mouth rinsing cycles and the real increase in roughness (ΔRa) and real weight loss (ΔW) were calculated. In addition, stereoscopic images taken at 30× magnification. The data was analyzed by one-way ANOVA and Tukey-test post hoc tests for intergroup comparison and the T-test for dependent samples (α = 0.05). Results: Only group G2 showed increased in roughness ΔRa (1.53 ± 0.94) whereas ΔW values were not significant. However, evident cracks and voids were verified for all tested children’s rinses. Conclusion: Thus, children’s mouthrinse containing xylitol / triclosan increased the GIC roughness, especially when associated with brushing.