COMPARATIVE EVALUATION OF COMPRESSIVE RESISTANCE OF AN ELASTOMERIC INTEROCCLUSAL RECORD MATERIAL AFTER IMMERSION IN A DISINFECTANT SOLUTION AT DIFFERENT TIME INTERVALS- AN INVITRO STUDY

Dr. Merin Thomas, Dr. Mallikarjuna D. M, Dr. Rupesh P. L, Dr. Basavaraj . S. Salagundi, Dr. Junu Henry, Dr. Parikshith S. R

Abstract


AIM: The aim of this study was to compare the compressive resistance of PVS interocclusal record material after disinfection at different time intervals

MATERIAL &METHOD: 24 specimens of the VPS interocclusal recording material(IMPRINT BITE) were prepared using a cylindrical stainless steel mould according to ADA  no.19 .The manipulation of VPS was done by an auto-mixing gun, which was injected into the  mould. Then specimens were divided into 4 groups according to disinfection time: Group A-control(no immersion) (n=6),Group B-immersion for 10 min (n=6), Group C-immersion for 30 min (n=6), Group D-immersion for 60 min  (n=6) .The disinfectant used was 2% Gluteraldehyde .Then the specimens were stored in tightly sealed containers and kept for 24 hours.  Compression resistance of the specimens were determined using a Universal Testing Machine with a compressive force of 25N for1min.The specimens were loaded to breakage or failure and value was expressed in Megapascals.

RESULT: Statistical analysis was done using chi square and anova test. The mean compressive resistance of Group A is found to be 9.47±0.64, Group B 10.25±0.95, ,Group C is 10.47±0.58,Group D is 11.04±0.68 and was found to be statistically significant(0.017).

CONCLUSION:.The compressive resistance of VPS (IMPRINT BITE) interocclusal record material Imprint Bite increases with increase in disinfection time


Keywords


Imprint Bite, Compressive Resistance, Gluteraldehyde

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