An in Vitro Study on Effect of Commonly used Eucalyptus and Chlorhexidine based Mouthwash on Surface Roughness of Universal Nanohybrid Composite and Light Cure Glass ionomer Cement.

Abstract

Introduction: The popularity of esthetic tooth-coloured restorations has increased as a result of high demands for pleasing appearance and patient concerns about the use of restorations which are not tooth coloured. These high demands led their wide use in restoring the carious and non- carious cervical lesions.

Material & Methods: Universal nanohybrid composite (3M Filtek Z250) and Light cure Glass ionomer cement (GC Fuji II LC) were used as a restorative material. Total 30 specimens were tested and divided into three groups based on different mouthwashes. Teflon mold of 8 mm diameter and a 2 mm thickness, samples of each material were prepared. Overflow of excess material was achieved by placing a transparent mylar strip. In order to ensure smoothness and light refraction, glass surface was used. Both the restorative material were light cured with LED light (Woodpecker, Mainland, China) according to manufacturer’s instructions. Then the specimens were polished subsequently with coarse, medium, fine and super fine polishing disc of Super snap polishing kit (Shofu, Kyoto, Japan) according to manufacturer’s instructions by using a low-speed handpiece at a rpm of approximately 12000-14000. Surface roughness was then tested using surface profilometer (Surftest 211, Mitutoyo, Tokyo, Japan).

Results: One-way analysis of variance (ANOVA) was performed. While the Wilcoxon test was used for paired comparison of the data before and after immersion. All the data were evaluated with 95% of confidence p> 0.05.

Conclusion: Hence within the limitations of this study, there was no significant differences between the materials before and after immersion in mouthwashes. This is of utmost importance as any surface roughness can lead to plaque accumulation and bacterial retention.