ROLE OF THREE DIFFERENT DISINFECTANTS FOR PREVENTING BACTERIAL GROWTH IN DENTAL IMPRESSION MATERIAL

Background: Dental impressions become contaminated with micro-organism from patient’s saliva and blood which can cross-infect stone cast poured against them. The aim of the present study was to compare the efficacy of commercially available disinfection products, one containing glutaraldehyde, sodium hypo chloride and ethanol for disinfection of impressions material. Methods: For this investigations, dental impression of 60 patients were taken. Impression was made in 5 mm slices for each disinfectants. Sectioned impression were immersed in gluteral aldehyde, sodium hypo chloride, and ethanol solutions. Antibacterial property of these disinfectants were evaluated by inoculating the sample saline solution into nutrient agar medium. Results: There is no significant different between these three disinfecting solution (P<0.05).all these disinfecting solution seems effective against the bacterial growth. Conclusions: Addition silicone impressions should always be disinfected after water wash in order to reduce effectively the cross-infection risk. All disinfectants tested showed high antimicrobial efficiency. Ethanol can be good economical alternative for disinfecting addition silicone.