Abstract
It is important that the dental stone model be disinfected in the dental office. Because dental treatment is bloodly treatment and contaminate impression with saliva-blood and transmitted to dental stone model. Contaminated dental stone model occur cross contamination to dental technician.
Therefore dental technician in the dental office must disinfect the impression adding sodium hypochlorite to water for the dental stone. Still spray with ethanol to dental stone model.
In case of dental technician in the dental laboratory, at first gather dental stone model disinfect with ethanol and then sterilize 100°C dryclave for 1 hour or disinfectant (povidon iodine for 5 minutes and irugasan DP300 for 10 minutes) .
