Evaluate the Effect of Adding Strontium Titanate Nano Particles on Thermal Conductivity and Tensile Strength of Heat Cured Denture Base Material

Abstract

Consider a new revolution in dental prostheses termed Nano dentistry as a result of the phenomenal expansion of nanotechnology. With the addition of certain nano components, chemical polymeric structures have been modified in order to improve mechanical quality.  Different concentrations of strontium titanate (0.5, 1, 1.5, and 2 weight percent) were added to heat-cured acrylic resin to assess its thermal conductivity and tensile strength. 100 samples of acrylic resin that has been heat-cured. The specimens were divided into two groups of fifty each using the tensile strength and thermo conductivity tests. ten samples of heat-sensitive acrylic resin (control group) without any additions, and ten samples of heat-sensitive acrylic resin with nano additions (SrTiO3) at various concentrations (0.5%,1%,1.5%,2%), According to (ASTM D412) (American Society for Testing and Materials; 2002), we created specimens measuring 33 mm in length, 3 mm in width, and 6 mm in depth to measure tensile strength, and specimens measuring 40 mm in diameter, 2.5 mm thick, and 6 mm in depth to assess thermal conductivity (Hasan and Ali, 2018; Kamil and Al-Judy, 2018).  The statistical analysis of the data was performed using one-way ANOVA and LSD tests. Thermal conductivity tests showed statistically significant differences at all concentrations, with the exception of the range of (0.5%) to (1%), where there was no variation.  Conclusion: After strontium titanate (SrTiO3) was added to the denture base material, improvements in concentration-dependent thermal conductivity and tensile strength were observed

Material and methods: Heat-curing acrylic denture base material effect on tensile strength and thermal conductivity  . In this study, 100 specimens were divided into 2 foremost groups (tensile strength and thermal conductivity  ), fifty for each test. 10 only were made according to the percentages of SrTiO3 powder used. Auto CAD 2018 was used to design the specimen form and dimension in order to create plastic patterns for acrylic specimen molds that would meet the test requirements.