Evaluation of Wear of Type III Stone Casts Made From Alginate Impressions after Being Disinfected

HamediRad, Fahimeh and Ghaffari, Tahereh (2011) Evaluation of Wear of Type III Stone Casts Made From Alginate Impressions after Being Disinfected. Journal of Mashhad Dental School, 35 (2). pp. 65-72.

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Abstract

Introduction: Disinfection of alginate impressions by immersion or spraying method with disinfecting agents is considered for effective infection control. The purpose of this study was evaluation of wear of type III stone casts made from alginate impressions after being disinfected by spray or immersion methods. Materials & Methods: Four common disinfecting agents (5.25 Sodium hypochlorite, 2 Glutaraldehyde, Micro 10 and Deconex) were selected and the samples were divided into four groups of 40 subjects with two subgroups of 20 subjects and a group of 20 subjects were selected as the control group (totally 180 impressions). Each group was disinfected with one of disinfecting agents and each subgroup disinfected by spraying or immersion method for 8 minutes. The control group was not disinfected. After disinfecting, the impressions were poured standardly with type III stone plaster. Using wear machine, surface wear rate was calculated. The data were analyzed using descriptive statistical tests, ANOVA & LSD. Results: The mean surface wearing was statistically different in different groups. Spraying or immersion by Micro 10 and spraying by 5.25 sodium hypochlorite had the least wear and spraying and immersion by Deconex caused the greatest wear. Conclusions: Regarding reduction of surface wearing of casts from disinfected impressions, it is advised to use Micro 10 with spray or immersion methods and 5.25 sodium hypochlorite by spraying.

Item Type: Article
Subjects: WU Dentistry. Oral surgery
Divisions: Journals > Journal of Mashhad Dental School
Depositing User: jmds jmds
Date Deposited: 23 Sep 2017 13:49
Last Modified: 23 Sep 2017 13:49
URI: http://eprints.mums.ac.ir/id/eprint/2686

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