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
DOI:
https://doi.org/10.32828/mdj.v13i1.811Keywords:
impact strength, transverse strength, hardness, polypropylene fibers, nano-fillerAbstract
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.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
