Roughness assessment of colored compomers: results after an erosive-abrasive in vitro cycling test
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Louise Magalhães [1] ; Fernanda-Vieira Belém [1] ; Kamilla França [2] ; Cristiane-Meira Assunção [1] ; Paulo-Antônio Martins-Júnior [1] ; Ana-Paula Turrioni [2] ; Marco-Aurélio-Benini Paschoal [1]
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[1] Universidade Federal de Minas Gerais
Universidade Federal de Minas Gerais
Brasil
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[2] Universidade Federal de Uberlândia
Universidade Federal de Uberlândia
Brasil
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- Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 15, Nº. 6 (June), 2023, págs. 459-463
- Idioma: inglés
- Enlaces
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Resumen
The present in vitro study aimed to evaluate and compare the surface roughness of a colored compomer and a composite resin, after 15 days of erosive-abrasive cycling.
The sample included ninety circular specimens, randomly divided (n = 10): G1 Berry, G2 Gold, G3 Pink, G4 Lemon, G5 Blue, G6 Silver, G7 Orange and G8 Green, referring to the different colors of compomer (Twinky Star®, VOCO, Germany) and G9 for composite resin (Z250®, 3M ESPE). The specimens were submerged in artificial saliva and stored at 37°C for 24 hours. After polishing and finishing, the specimens were submitted to initial roughness (R1). Then, the specimens were submerged in an acidic cola-based drink for 1 minute and then exposed to electric toothbrushing for 2 minutes for 15 days. After this period, the final roughness (R2) and the ΔRa were performed. Data were submitted to ANOVA and Tukey’s test for intergroup comparison and paired T-test for intragroup comparison (p<0.05).
Among compomers, the green color presented the higher/lower initial and final roughness values (0.94 ± 0.44, 1.35 ± 0.55) with lemon color presenting the most prominent real roughness increase (ΔRa = 0,74) whereas composite resin showed the lower values (0,17 ± 0.06, 0,31 ± 0.15; ΔRa = 0,14).
All compomers, after the erosive-abrasive challenge, presented an increase in roughness values when compared to composite resin with a highlight to green tones.
