The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems

Objective: Finishing and polishing (F/P) of composites is a fundamental step influencing the clinical service of restorations. The aim of this study was to evaluate the effect of different F/P systems on surface roughness, gloss, and polish retention of composite resins. Materials and Methods: One-...

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Autores principales:	Fatemeh Farzaneh, Mahshid Mohammadi-bassir, Mohammad Bagher Rezvani, Fahimeh Dehestani Ardakani
Formato:	article
Lenguaje:	EN
Publicado:	Tehran University of Medical Sciences 2021
Materias:	composite resins dental polishing surface properties materials testing Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/df1aeeec045d4c55a3faaca9ce5253c7
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spelling	oai:doaj.org-article:df1aeeec045d4c55a3faaca9ce5253c72021-11-20T04:47:52ZThe Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems10.18502/fid.v18i39.76082676-296Xhttps://doaj.org/article/df1aeeec045d4c55a3faaca9ce5253c72021-10-01T00:00:00Zhttps://fid.tums.ac.ir/index.php/fid/article/view/3871https://doaj.org/toc/2676-296X Objective: Finishing and polishing (F/P) of composites is a fundamental step influencing the clinical service of restorations. The aim of this study was to evaluate the effect of different F/P systems on surface roughness, gloss, and polish retention of composite resins. Materials and Methods: One-hundred and five disc-shaped specimens (4×4 mm) were made from nanofilled, microhybrid, and microfilled composites (n=35). The specimens were divided into five subgroups (n=7) for F/P with Sof-Lex (4-step), Shofu (4-step), Cosmedent (3-step), Diacomp Composite-Pro (2-step), and Opti1Step systems. The surface roughness values (Ra and Rz) were measured before and after pH-cycling and simulated toothbrushing. Surface topography was assessed by using a scanning electron microscope (SEM) at three magnifications. For assessment of surface gloss, 45 rectangular specimens (10×8×2 mm) were fabricated from three composites (n=15) and randomly allocated to five subgroups (n=3). Surface gloss was measured before and after aging. The mean values were calculated and analyzed by two-way ANOVA, Tukey, and t-test. Level of significance was set at 0.05. Results: The composite type had no significant effect on surface roughness (P>0.05); however, the type of F/P system significantly affected it (P<0.05). The pH-cycling and simulated toothbrushing had no significant effect on gloss or polish retention of the three composites (P>0.05). Conclusion: Type of F/P system had a greater effect on surface roughness and gloss of composite resins than the type of composite. Fatemeh FarzanehMahshid Mohammadi-bassirMohammad Bagher RezvaniFahimeh Dehestani ArdakaniTehran University of Medical Sciencesarticlecomposite resinsdental polishingsurface propertiesmaterials testingDentistryRK1-715ENFrontiers in Dentistry, Vol 18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	composite resins dental polishing surface properties materials testing Dentistry RK1-715
spellingShingle	composite resins dental polishing surface properties materials testing Dentistry RK1-715 Fatemeh Farzaneh Mahshid Mohammadi-bassir Mohammad Bagher Rezvani Fahimeh Dehestani Ardakani The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems
description	Objective: Finishing and polishing (F/P) of composites is a fundamental step influencing the clinical service of restorations. The aim of this study was to evaluate the effect of different F/P systems on surface roughness, gloss, and polish retention of composite resins. Materials and Methods: One-hundred and five disc-shaped specimens (4×4 mm) were made from nanofilled, microhybrid, and microfilled composites (n=35). The specimens were divided into five subgroups (n=7) for F/P with Sof-Lex (4-step), Shofu (4-step), Cosmedent (3-step), Diacomp Composite-Pro (2-step), and Opti1Step systems. The surface roughness values (Ra and Rz) were measured before and after pH-cycling and simulated toothbrushing. Surface topography was assessed by using a scanning electron microscope (SEM) at three magnifications. For assessment of surface gloss, 45 rectangular specimens (10×8×2 mm) were fabricated from three composites (n=15) and randomly allocated to five subgroups (n=3). Surface gloss was measured before and after aging. The mean values were calculated and analyzed by two-way ANOVA, Tukey, and t-test. Level of significance was set at 0.05. Results: The composite type had no significant effect on surface roughness (P>0.05); however, the type of F/P system significantly affected it (P<0.05). The pH-cycling and simulated toothbrushing had no significant effect on gloss or polish retention of the three composites (P>0.05). Conclusion: Type of F/P system had a greater effect on surface roughness and gloss of composite resins than the type of composite.
format	article
author	Fatemeh Farzaneh Mahshid Mohammadi-bassir Mohammad Bagher Rezvani Fahimeh Dehestani Ardakani
author_facet	Fatemeh Farzaneh Mahshid Mohammadi-bassir Mohammad Bagher Rezvani Fahimeh Dehestani Ardakani
author_sort	Fatemeh Farzaneh
title	The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems
title_short	The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems
title_full	The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems
title_fullStr	The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems
title_full_unstemmed	The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems
title_sort	effect of chemical and mechanical degradation on surface roughness, topography, gloss, and polish retention of three composites polished with five polishing systems
publisher	Tehran University of Medical Sciences
publishDate	2021
url	https://doaj.org/article/df1aeeec045d4c55a3faaca9ce5253c7
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The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems

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