Evaluation of the Effect of silanized Zirconium Oxide nano-fillers and Plasma Treated polypropylene fibers Addition on some Properties of Heat Cured Acrylic Resin Denture Base Material | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 13, Issue 1, December 2016, Pages 70-76 | ||
| Authors | ||
| ; Dr. Noor Falah Abdul-Hadi; | ||
| Abstract | ||
| Background: The polymethylmethacrylate is the most reliable material for the construction of dentures but it has the disadvantages of lacking strength and radio-opacity. The purpose of this study was to evaluate the effect of addition of modified nano-zirconium oxide (zro2 ) and plasma treated polypropylene fibers on some mechanical properties of heat cure acrylic resin materials. Materials and methods:- Zirconium oxide nanoparticles were coated with a layer of propyltrioxysilane before dispersed and sonicated in monomer(MMA)in percentage of 2% by weight . The plasma treated polypropylene fibers were in percentage of 2% by weight added to polymer powder. Sixty specimens were constructed and divided into 3 groups according to the using tests; each group was subdivided into two subgroups. The tests used were impact strength, transverse strength and surface hardness. Data were analyzed T-test. Results:- After the addition of plasma treated polypropylene fibers and modified nano-Zro2 fillers there was a highly significant increase in impact strength, transverse strength and surface hardness. Conclusion: It can be concluded that the addition of modified nano-Zro2 fillers and plasma treated polypropylene fibers effective method to enhance the fracture resistance of acrylic denture base material. | ||
| Keywords | ||
| Key Words; transverse strength; Hardness; polypropylene fibers | ||
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