Comparative Evaluation of Surface Roughness of ResinModified Glass Ionomer and Glass Hybrid Restorative Materials Simulated by Tooth Brushing: An in-Vitro Study

Komandla, Divya Rao and Acharya, Shashi Rashmi and Pentapati, Kalyana Chakravarthy (2021) Comparative Evaluation of Surface Roughness of ResinModified Glass Ionomer and Glass Hybrid Restorative Materials Simulated by Tooth Brushing: An in-Vitro Study. Pesquisa Brasileira em Odontopediatria e Clinica Integrada, 21. pp. 1-8. ISSN 1519-0501

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Abstract

Objective: To compare the effect of tooth brushing on surface roughness of Resin-Modified Glass Ionomer Cement (RMGIC; GC Gold label 2LC Light Cured Universal Restorative) and Glass Hybrid (GH; GC EQUIA SYSTEM- EQUIA Forte™ Fil and EQUIA Forte™ Coat) restorative material at 1- and 3-months interval simulated by tooth brushing. Material and Methods: RMGIC and GH material specimens (20 each) were prepared according to manufacturer instructions in 10 mm × 2 mm dimensions using a mylar strip. A specially designed toothbrush simulator was used along with Oral B Pro 2 2000N powered toothbrush and Colgate Total dentifrice (Colgate-Palmolive India limited; Relative dentin abrasivity - RDA:70 - Low abrasive) to perform brushing strokes. Specimens were subjected to surface roughness analysis before and after simulated tooth brushing at baseline, 1, and 3 months. Results: The intragroup comparison was done using repeated- measures ANOVA. Intergroup comparisons were done using an independent sample t-test and General Linear Model (ANCOVA). Surface roughness increased from baseline through 3 months in both RMGIC and GH groups. The mean surface roughness in RMGIC group was significantly higher than GH group at baseline 1 and 3-months, respectively (p<0.001, <0.001, and <0.001). Interaction between group and baseline surface roughness was not significant (p=0.466). The estimated marginal means were significantly higher in RMGIC than GH group (p=0.008). Conclusion: The surface roughness of both RMGIC and GH restorative increased from baseline to 1 month and 3 months after the simulated toothbrushing protocol. GH exhibited significantly lower surface roughness than RMGIC at all the tested intervals

Item Type: Article
Uncontrolled Keywords: Dental Materials; Glass Ionomer Cements; Microscopy; Atomic Force
Subjects: Dentistry > MCODS Manipal > Preventive and Community Dentistry
Dentistry > MCODS Manipal > Conservative Dentistry and Endontics
Depositing User: KMC Library
Date Deposited: 28 Jan 2022 04:27
Last Modified: 28 Jan 2022 04:27
URI: http://eprints.manipal.edu/id/eprint/158046

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