Comparative Analysis of Surface Roughness and Wear Resistance of Light Cured Composite Coating Material on Composite and Acrylic Denture Teeth - A Pilot Study

  

  Manimegalai , Shyammohan , Anumitha , Sruneerdha , Aarti Rajambigai

   DOI : https://doi.org/

 Abstract

The aim of this study was to evaluate the surface roughness and wear resistance of light-cured composite coating materials on acrylic and composite denture teeth. Surface coatings on denture teeth are given for esthetic reasons but can be affected by the dynamic oral conditions, given the thin nature of their application. Twenty disc-shaped specimens were prepared of standard size from the largest available incisor size of composite and acrylic resin denture teeth of shade A2. The specimens were grouped into Group 1 (composite resin denture teeth) and Group 2 (acrylic resin denture teeth). The surface roughness value before and after the application of the light-cured composite coating was evaluated using a Profilometer. Wear testing was performed by subjecting the specimens to simulated tooth brushing, and mass loss values were calculated. Statistical analysis was performed using Independent t-test and Paired t-test for inter and intra-group comparison. The mean surface roughness of Group 1 before and after coating was 3.0818 µm ± 0.2275 µm (p=0.04), and that of Group 2 was obtained as 2.2952 µm and 0.2360 µm, respectively (p<0.001). Group 1 showed less wear compared to Group 2 on wear analysis through the mass loss value. Although there was a difference in the values observed between the groups, they were statistically insignificant. The surface roughness and wear resistance of composite denture teeth were better compared to acrylic resin denture teeth upon the application of the light-cured coating material.

 Keywords

Surface Roughness, Wear Resistance, Composite, Acrylic Denture Teeth, Light-Cured Coating Material.

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