EFFECT OF FILLER NANO TITANIUM DIOXIDE (TiO2) PARTICLES ON FLEXURAL STRENGTH OF NYLON THERMOPLASTIC DENTURE BASE

Background: Treatment of missing teeth can be done by using dentures. One of the denture base materials is thermoplastic nylon. The advantages of thermoplastic nylon are flexible and deformable. Various attempts have been made to maximize the quality of the denture, for example, by adding TiO 2 . TiO 2 can be used as a filler. Filler is the process of adding TiO 2 to the denture base. The advantages of TiO 2 particles are non-toxic, antimicrobial, and increasing the mechanical strength of denture bases.TiO 2 can reduce the porosity of the denture. Method: the design study is a post-test-only control with a total of 27 samples. A flexural test was performed using the UTM GD 1100. The statistical test used by the One Way Anova test. Result: The results showed that there was no significant effect on the flexural strength of thermoplastic nylon with the addition of 1% and 5% TiO 2 with the control group. The highest flexural strength was obtained in the treatment group of TiO 2 1 %, which was an average of 133.3867 N/mm 2 and the lowest flexural strength was obtained in the control group without the addition of TiO 2 , which was an average of 127.57378 N/mm 2 . The lowest flexural strength was found in the control group without the addition of TiO 2 , which was an average of 127.57378 N/mm 2 . Conclusion: There was no significant effects on the flexural strength of thermoplastic nylon with 1% and 5% TiO 2 added to the control group.