The effects of mechanical and chemical degradation on the surface roughness, gloss, and color stability of bulk-fill resin composites
Year: 2025
Type: article
Abstract: BACKGROUND: The aim of this study was to evaluate the effects of different pH solutions and brushing on the surface roughness, color stability and surface gloss of different bulk-fill resin composites. METHODS: Ten disc-shaped specimens were prepared from each resin composite (Filtek Bulk-Fill, Estelite Bulk-Fill Flow, Tetric N-Ceram Bulk-Fill, Opus Bulk-Fill, Admira Fusion X-tra, Beautifil Bulk). After measuring the initial surface roughness, color, and gloss values of the prepared specimens, each group were immersed in the following solutions for seven days: hydrochloric acid solution, cola, and coffee. Afterwards, specimens were subjected to simulated tooth brushing and then surface roughness, color, and gloss values were measured again. The data were analyzed using the One-way ANOVA, Tukey HDS test, Kruskal-Wallis test, Dunn's test, Paired samples t-test (p < .05). RESULTS: All bulk-fill composites showed a significant increase of roughness after chemical and mechanical challenges, with the lowest values for Filtek Bulk-Fill and Estelite Bulk-Fill Flow, and the highest values for Beautifil Bulk (p < .05). The gloss was influenced by the challenges, with Beautifil Bulk showing the lowest gloss and highest color change value (p < .05). CONCLUSIONS: Bulk-fill composite resins were influenced by association of challenges, and Beautifil Bulk showed the highest changes for roughness, gloss, and color.
Source: BMC Oral Health
Institutions: Gazi University, Trakya University
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $3,190
OpenAlex ID: W4416092920