Comparative Evaluation of Colour Stability and Surface Roughness of Nanohybrid Composite Resins in Mouth Rinse and Colouring Beverages

Abstract

An ideal restorative material should be capable of supplanting the biological, functional, and aesthetic qualities of a healthy tooth structure. There has always been a search for optimal and aesthetically pleasing restorative materials. This study aims to evaluate the surface roughness and colour stability of three nanohybrid composite resins post-exposure to mouth rinse and colouring beverages. MethodsOne hundred and twenty specimens of dimension 10 mm x 8 mm x 1 mm were randomly allocated into three equal-sized groups and fabricated using three different nanohybrid composites (Group A: Filtek Z250 XT, Group B: Tetric N-Ceram, and Group C: Solare Sculpt). Sixty samples, comprising 20 from each group, were examined for colour stability and 60 for surface roughness after exposure to chlorhexidine and coffee. Baseline and post-exposure readings of the surface roughness and colour absorbance of the specimens were obtained by atomic force microscopy and spectrophotometer, respectively. A one-way analysis of variance (ANOVA) test followed by a post hoc Tukey's test and an independent t-test were used for data analysis, considering a p-value<0.05 as significant. ResultsIrrespective of the composite, the surface roughness and colour change were substantially higher in the samples exposed to coffee (p-value<0.01). Filtek Z 250XT showed significantly minor changes in colour and surface roughness, followed by Solare Sculpt and Tetric N-Ceram (p-value<0.05). ConclusionCoffee caused more surface roughness and colour changes compared to chlorhexidine. Filtek 250 XT showed minor changes in colour and surface roughness on exposure to both solutions.

Effect of different finishing and polishing systems on surface properties of universal single shade resin-based composites

“…Vittra filler content was not disclosed by the manufacturer, however, according to the manufacturer Filtek is composed of surface-modified zirconia/silica with a median particle size of approximately 3 μm or less (non-agglomerated/non-aggregated 20 nm surface-modified silica particles). Furthermore, Filtek is characterized by compact spatial and molecular arrangement and fused nanocluster agglomerates which is believed to result in an improved surface smoothness [ 66 , 67 ].…”

A Comparative Evaluation of the Effect of Different Beverages on Colour Stability and Surface Micromorphology of Nanocomposite Restorative Material

“…The larger the value of ∆E, the larger the gap between the two samples. In dentistry, an ∆E value of 3.3 or below is considered safe for human use [ 11 ]. It was seen that when nanocomposite resin was exposed to immersion media Coca-Cola (twice a day), it showed the greatest color difference as compared to other groups after three months and the final one month, but when nanocomposite resin composite was exposed to Real Fruit Power Orange, it showed that the color difference of the specimens in orange juice exposed twice a day in the final one month of immersion was greater than the color difference of the specimens in carbonated drink exposed once a day and packaged orange juice exposed once a day after three months of immersion.…”

“…It was seen that when nanocomposite resin was exposed to immersion media Coca-Cola (twice a day), it showed the greatest color difference as compared to other groups after three months and the final one month, but when nanocomposite resin composite was exposed to Real Fruit Power Orange, it showed that the color difference of the specimens in orange juice exposed twice a day in the final one month of immersion was greater than the color difference of the specimens in carbonated drink exposed once a day and packaged orange juice exposed once a day after three months of immersion. The type of organic matrix, the size and distribution of the filler particles, and the exposure of the material to low-PH foods, beverages, and mouthwash solutions are all factors that affect composite parameters like color stability and surface roughness [ 11 ].…”

Staining Susceptibility of Microhybrid and Nanohybrid Composites on Exposure to Different Color Solutions

“…Korać et al evaluated the color stability of composites following immersion in Coca-Cola, coffee, and tea, and found that coffee and tea induced clinically detectable discoloration in microhybrid and nanocomposite [15]. A recent study compared the color stability of three different types of nanohybrid composite after exposure to coffee, and chlorhexidine reported more discoloration [16].…”