To Compare and Evaluate The Effect of Commercially Available Denture Cleansers on the Color Stability, Flexural Strength and Surface Roughness of Two Different Types of Denture Base Materials -An in-Vitro Study

Abstract Aim: The Purpose of this in Vitro Study was to compare and evaluate the effect of commercially available denture cleansers on the color stability, flexural strength and surface roughness of two different types of denture base materials. Materials and Methods: In order to conduct this study a metal mould with specific dimensions were fabricated to make the heat cure acrylic and polyamide Lucitone denture base specimens. A total of 160 samples were included in the study which were divided on the basis of denture base materials into two groups: Group 1 Heat cure acrylic denture base resin and Group 2: Polyamide resin- Lucitone denture base resin. Group 1 and Group 2 were further divided into 4 subgroups based on the different denture cleansers. Sample of heat cure acrylic resin and polyamide resin –Lucitone of specific dimensions will be prepared using modelling wax and metal mould. Three types of commercially available denture cleansers will be prepared as per manufacturer’s instructions. After 90 days of immersion period, samples were subjected to spectrophotometer for color stability test, Surface roughness tester and universal testing machine under 3-point loading to check for the flexural strength of the specimens. The data collected will be subjected to statistical analysis. Results: To compare the data of these groups, it was preferred to apply one way ANOVA and POST HOC TEST for testing the difference of mean in between the groups. The level of significance was set at P- value < 0.05. Among all the three denture cleansers used in our study group1{acrylic resin} showed statistically minimal reduction in values of flexural strength with Fittydent in comparison to Secure and Clinsodent. Similarly group2 {Lucitone- polyamide resin} showed statistically minimal reduction in values of flexural strength with Fittydent in comparison to Secure and Clinsodent. On immersion of specimens of both the groups in Clinsodent, Fittydent, and Secure denture cleansers, reduced flexural strength of the heat-cured acrylic resin and Lucitone- polyamide resin was observed in comparison to distilled water. In this study acrylic resin group exhibited change in surface roughness which was seen maximum with Clinsodent. Surface roughness of acrylic resin with Clinsodent and Secure was camparable. Fittydent showed least change in surface roughness in camparison with control group. Similar result pattern was observed in lucitone- polyamide group. ANNOVA and POST HOC TEST showed the result to be satisficing when three commercially available denture cleanser were taken into consideration.