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Impact of Sorts Disinfection and Cleansing Material on Hardness of Different Types of Denture Base Material | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 5, Issue 2, December 2017, Pages 135-142 PDF (292.8 K) | ||
| DOI: 10.25130/tjds.5.2.7 | ||
| Author | ||
| Reem Ahmed Shihab | ||
| (1) Asst. Lec., Department of prosthodontics, College of Dentistry, Tikrit University. | ||
| Abstract | ||
| Dentist, dental technician and assistants are faced a several kinds of microorganisms during work like bacteria, fungi and viruses .So, we can prevent cross contamination by using either chemical or mechanical disinfection. The aim of the research was to measure the effect of different types of chemical disinfection on the hardness of two types of denture base resin, heat activated acrylic and nylon (flexible). A total number of 80 denture resin specimens (40 specimens from heat activated acrylic and 40 specimens from flexible resin) were prepared. Each type of specimen was subdivided into 4 groups. Three groups were divided according to the type of denture disinfectants (1%sodium hypochlorite, 1% povidine/iodine, Kin solution) and the fourth which considered as control group was immersed in distilled water. All specimens were immersed in testing solution for 90 minutes at 370C. The hardness of the specimens before and after immersion was tested using Shore D machine. Our study showed that the mean value of hardness test for poly methyl methacrylate higher than polyamide and there need aid nonsignificant Contrast in the resistance of the surface to scratches and indentation between diverse sorts of thermoplastic resin after using chemical disinfectant and denture cleansers with comparison with control group for each type of denture base resin. The resistance to indentation of different types of denture base would not affected by short time immersion in chemical disinfectant. | ||
| Keywords | ||
| Ceramic laser Bonding | ||
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