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Evaluation The Effect Of Addition Some Disinfectants Solutions On Compressive Strength Of Dental Stone | ||
| Tikrit Journal for Dental Sciences | ||
| Article 1, Volume 3, Issue 1, 2015, Pages 39-44 | ||
| DOI: 10.25130/tjds.2015.1.5 | ||
| Author | ||
| Yasameen Ibrahim Mahbas | ||
| Abstract | ||
| It's necessary to disinfectant the stone cast that poured in the impression to reduce the risk of bacteria & microorganism on the dentist technicians and patient . In this study uses the sodium hypochlorite & chlorohyxidine as disinfectants solutions concentration were (5%) . The purpose of this study is to evaluate the effect of addition these disinfectants solutions on compressive strength of dental stone type III . A total number of the study stone specimens were 30 and they were divided in three groups, (10) specimens for each group . The testing groups were prepared and divided into three groups according to the concentrations of sodium hypochlorite (5%) and chlorohyxidine (5%) :- Group A : stone specimens were mixed with distilled water . Group B : stone specimens were mixed with (5%) sodium hypochlorite solution . Group C : stone specimens were mixed with (5%) chlorohyxidine . The size of the specimen is (20mm) diameter and (40mm) length . The shape of specimen is cylinder . The test specimens are measured by (WDW. 200E) . A brass mold in (20mm) diameter and (40mm) length was used to prepare the specimens . The specimens were placed on the testing machine so the top and the bottom of the specimen were in contact with the steel flat rigid plates . The specimens were crushed at a loading rate of (300/50 cm2) and (5mm/min) cross head speed . The maximum load carried by each specimen was taken from a digital screen of the machine and calculation of compressive was obtained . The results for the specimen showed that the addition of different disinfectants caused reduction in strength, which found high significant effect on the compressive strength when compared with control group . | ||
| Keywords | ||
| Biodentine; push out; MTAD; QMix | ||
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