The antibacterial activity of certain disinfectant solutions incorporated into stone mixture

Abstract

Cross infection control is a way of life and it was realized that a radical changes in
the way of work in the dental clinic and laboratories would detect considerable revises
of traditional working patterns. Disinfection of dental stone cast by incorporation of
Chlorhexidine gluconate CHX, Sodium hypochlorite and Madacide 11 separately in a
concentration of (0.5 , 0.5 , full strength) respectively according to the manufacturer
instructions and testing their activity against S.aureus,  -haemolytic streptococcus
pneumonia, pseudomonas aeruginosa and E. coli was performed. 5 trials were done
for each disinfectant solution and control (distilled water).
The result showed that all the disinfectant solutions showed significant reduction
of microbial growth in comparison with the control. Sodium hypochlorite sterilize
dental stone cast followed by CHX.Sodium hypochlorite gave negative result for all
the tested microorganisms in all the trials followed by chlorhoxidine gluconate
solutions .
Disinfection of stone cast is among recommended methods in infection
control.Sodium hypochlorite was the best among the tested disinfected solutions.