Effects of mouthwashes on color stability and surface roughness of three different resin-based composites

A C T Celik, E Coban, H E Ulker
Nigerian Journal of Clinical Practice 2021, 24 (4): 555-560

Objective: The aim of this study is to evaluate the effects of different types of mouthwashes (Klorhexidin, Curasept ADS 205, Meridol, Listerine Cool Citrus) on the surface roughness and color changes of a microhybrid (Point 4), a bulk fill (SonicFill), and a nanohybrid (Nova Compo-N) resin-based composite (RBC).

Materials and Methods: Disk-shaped specimens were prepared from tested RBCs and divided into four subgroups which immersed in four different types of mouthwashes. The specimens were subjected to immersion cycles in the mouthwashes and artificial saliva (n = 8). Each cycle consisted of complete immersion in a mouthwash for 21 min and afterwards in saliva for 12 h at 37°C, and this cycle was repeated 8 times. The surface roughness was evaluated using a profilometer and coloration was evaluated using a spectrophotometer before and after immersion time. One-way analysis of variance (ANOVA) for the evaluation of surface roughness data was performed, and interrelation between groups was identified with the Sheffe's multiple comparison test.

Results: There were no significant differences between the Ra values of the RBCs before and after immersion in mouthwashes (P > 0.05). There were significant differences between ΔE value of the SF and NCN groups before and after immersion time (P < 0.05).

Conclusion: Mouthwashes contribute to oral health, especially in patients at high risk of caries. However, in such patients, patient-specific recommendations should be made when using mouthwashes due to the large number of composite fillings.

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