The Effectiveness of Adding Rice Husk Nanosilica to the Flexural Strength of Opaque Porcelain Coatings on Metal Ceramic Dental Crowns
DOI:
https://doi.org/10.37275/bsm.v6i3.474Keywords:
Rice Husk Silica, Nanosilica, Flexural Strength, Metal-Ceramic Dental Crowns, Opaque Coating PorcelainAbstract
Background. Failure of dentures that are unable to withstand flexural forces is often a major problem in the use of metal-ceramic crowns. The use of rice husk nano-silica powder has been extensively researched in dentistry because of its ability to improve mechanical properties. This study aims to determine the effectiveness of nano-silica particles from rice husks on the flexural strength of the opaque layer on Co-Cr metal-ceramic crowns.
Methods. The type of research is experimental laboratories in vitro with posttest only control group design. The research samples were rectangular Co-Cr metal and porcelain plated on top of the metal center totaling 25 samples which were divided into 5 treatment groups. Flexural strength measurement with three-point bending at UTM. Data were analyzed by independent T-test and way ANOVA.
Results. flexural strength of Co-Cr metal ceramic crown with the addition of 0.25% rice husk silica; 0.5%; 0.75%.1% in the opaque layer is 70.431±4.168; 84.093±2.852; 100,672±4,182 and 115,092±3,821, respectively.
Conclusion. There is an increase in the flexural strength of metal ceramic crowns with the addition of 0.25% silica; 0.5%; 0.75%,1% on opaque coating.
Authors
- Nurul Fauziyah Zain1*
- Sopan Sinamo1
- Elisanta Desriana Br Sinuraya1
- Florenly1
- 1Dentistry Education Program, Faculty of Dentistry, Universitas Prima Indonesia, Medan, Indonesia
Corresponding author Nurul Fauziyah Zain — nurulfauziyahzain99@gmail.com
Article history
- Submitted
- Accepted
- Published
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