COMPARATIVE EVALUATION OF HARDNESS OF DIFFERENT TYPES OF DENTURE TEETH AFTER IMMERSION IN WATER AT DIFFERENT TIME INTERVALS: AN IN-VITRO STUDY

Dr. Samarth Kumar Agarwal*, Dr. Romil Singhal, Dr. Sankalp Sharma, Dr. Akanksha Singh, Dr. Beenish Javed and Dr. Prakhar Khurana

ABSTRACT

Statement of problem: Wearing of denture teeth is a frequent problem which may affect esthetics of the patient. Materials and method: Three commercially available denture teeth were selected - Cross linked acrylic resin teeth, Highly cross linked acrylic resin teeth and Composite resin teeth. Ninety samples of all three test materials were fabricated (30 from each material) which were divided into two groups, Control group and Experimental group. In control group 30 samples of three test materials (10 from each material) were not immersed in water while in experimental group 60 samples were immersed in water, at 24 hours and 90 days and Vickers hardness test was performed. Result: composite resin teeth showed maximum hardness. ANOVA showed statistically significant result as p<0.001at 90 days immersion. Conclusion: There is a decrease in hardness of all the three types of denture teeth after immersion in water.

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