Evaluating the clinical significance of color stability in nanohybrid composite resins: a comparative study of local and international brands

Yıl 2024, , 571 - 580, 27.09.2024

Hatice Tepe , Özge Çeliksöz , Batucan Yaman

https://doi.org/10.32322/jhsm.1532620

Öz

Aims: The objective of this study was to evaluate the color stability of five nanohybrid composite resins, including locally produced Turkish brands and an international brand, after exposure to staining and brushing simulations over time.
Methods: Five nanohybrid composite resins; Filtek Z550 (FLT), Dolgunn (DLG), RubyComp Nano (CMP), Nova Compo C (NVC), and Parion (PRN) were tested. Specimens underwent staining and brushing simulations designed to replicate clinical oral conditions. The staining process involved immersing the specimens in a coffee solution for 8 hours per day over a 10-day period to simulate short-term staining (t1), and for 12 days to simulate long-term staining equivalent to 1 year (t2). Brushing cycles were used to replicate the mechanical wear caused by daily oral hygiene practices. Color measurements were recorded at baseline (t0), after 10 days of staining (t1), and after 1 year of simulated staining and brushing (t2). Additional analyses were conducted using Energy-dispersive X-ray spectroscopy (EDX) and Scanning Electron Microscopy (SEM) to investigate structural and surface characteristics. Statistical analysis was performed using generalized linear models and two-way robust ANOVA to assess the significance of differences in color stability, with a significance level set at p<0.05.
Results: The main effect of the composite was not found to be statistically significant on the median ΔE values (p=0.078). The main effect of time was found to be statistically significant on the median ΔE values (p<0.001). Additionally, the interaction between composite and time was statistically significant on the median ΔE values (p=0.001). The highest median value of 3.12 was observed in the NVC composite from ΔE2, while the lowest median value of 1.285 was observed in the PRN composite from ΔE1. EDX and SEM analyses provided insights into the material compositions and their influence on color stability.
Conclusion: The findings suggest that locally produced Turkish nanohybrid composites offer competitive color stability, making them viable alternatives to international brands for aesthetic dental restorations. This study highlights the need to consider both local and international materials for their clinical performance and cost-effectiveness in restorative dentistry. Future research should explore the long-term performance and clinical implications of these materials further.

Anahtar Kelimeler

Nanohybrid composite resin, color stability, staining simulation, brushing simulation, spectrophotometer

Kaynakça

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