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The Influence of Incorporating Zno on The Surface Hardness of Poly Methyl Methacrylate. In Vitro Study | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 10, Issue 2, December 2022, Pages 230-233 PDF (360.34 K) | ||
| DOI: 10.25130/tjds.10.2.17 | ||
| Author | ||
| Firas Abd Kati* | ||
| Department of Prosthodontics College of Health & Medical Technology, MTU, Baghdad, Iraq | ||
| Abstract | ||
| Introduction: Heat cured resins are commonly utilized for construction of complete and partial dentures. Such materials have poor mechanical properties and may be exposed to fracture. The present study, therefore, was conducted to evaluate the impact of incorporating ZnO on acrylic resins’ surface hardness. Materials and Methods: Twenty specimens were constructed in total. The study composed of 2 major sets, and each set had ten specimens. The 1st set had 1% zinc oxide and the second group had no zinc oxide and considered as control. All samples were subjected to the hardness test three times and average reading was recorded for all specimens. Results: a significant decrease in the surface hardness of acrylic resins following the incorporation of ZnO (control group: 127.62+2.53 g/mm2, zinc oxide group: 106.67+ 1.51). Conclusions: The addition of zinc oxide at 1 % would decrease the surface hardness of acrylic resins. | ||
| Keywords | ||
| Zinc oxide Acrylic resin Surface hardness | ||
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