Evaluation of Effect of Incorporating 0.5% Chloramine-T as Disinfectant in Type III Gypsum Product on its Setting Time and Abrasion Resistance

Background: Disinfection of dental cast is very important because it can cause cross-infection from patients to clinicians and lab personnel. This study aimed to evaluate the effect of addition of 0.5% of chloramine-T as disinfectant in type III gypsum product on its setting time and abrasion resistance.

Objectives: 1. To evaluate the effect of Chloramine-T on setting time of type III gypsum product. 2.To evaluate the effect of Chloramine-T on abrasion resistance of type III gypsum product. 3. To compare the mentioned properties with control group of type III gypsum product without Chloramine-T.

Methodology: This is an invitro study, sample size is 140. We will be testing for setting time with the help of Vicat needle apparatus and abrasion resistance will be tested with the help of two body wear testing apparatus. This study will be conducted under 4 groups: Group1- Control group for setting time, Group2- Experimental group for setting time, Group3- Control group for abrasion resistance, Group 4- Experimental group for abrasion resistance.

Expected Result: It is expected that this study would result in forming a type III gypsum product incorporated with Chloramine-T, thus eliminating the need for any additional steps for disinfecting casts and ultimately preventing cross-infection.

Conclusion: Incorporating Chloramine-T can be an efficient method of disinfecting gypsum without adversely affecting the product's mechanical and physical properties.