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The effect of SOLO and sodium hypochlorite disinfectant on some properties of different types of dental stone

Authors: Aseel M. Al-khafaji اسيل الخفاجي --- Shorouq M. Abass شروق عباس --- Bayan S. Khalaf بيان خلف
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 2 Pages: 8-17
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Dental casts come into direct contact with impression materials and other items that are contaminatedby saliva and blood from a patient's mouth, leaving the casts susceptible to cross-contamination. The disinfectantsolutions of the impression materials cause various adverse reactions. Therefore, disinfection of dental casts may beeffective in preventing cross infection. This study was carried out to evaluate the surface hardness, dimensionalaccuracy, reproduction of details and surface porosity of type III, type IV and type IV extra hard dental stone afterimmersion in and spray by using SOLO and Sodium hypochlorite disinfectant solutions.Materials and methods: 240 Stone samples were prepared in rubber rings, A total of 60 test block were prepared foreach test (surface hardness, dimensional accuracy, reproduction of details and surface porosity).the samples weredivided into three groups (20 for each type of stone) type (III, IV, IV extra hard); SOLO and Sodium hypochloritedisinfectant by 2 methods (immersion and spray) were used in each test.Results: the results of dimensional accuracy, reproduction of details, surface hardness and surface porosity revealedno significant difference for all types of tested stone samples after immersion or spraying in SOLO and NaOCl exceptthe surface hardness of type IV extra hard showed significant difference after spray with SOLO and the surfaceporosity of type IV extra hard showed significant difference after immersed in both SOLO and NaOCl solutions.Conclusions: Based on the results of this study immersion in and spray by using SOLO and NaOCl disinfectant solutionsproduced no adverse effect on dimensional accuracy, reproduction of details, surface hardness and surfaceporosity for type III, type IV dental stone and for type IV extra hard dental stone except for the surface hardness fortype IV extra hard when sprayed with SOLO and the surface porosity when type IV extra hard stone immersed in theSOLO and NaOCl solutions

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