Hipoclorito de sodio al 5% Vs digluconato de clorhexidina. Desinfectantes antimicrobianos del sistema de irrigación odontológico

A comparative observational study was carried out in the Dental Clinic of Universidad Nacional de Chimborazo (UNACH), during the academic period October 2015 - February 2016. The object of study was given by the existing microbial load in the irrigation system of 10 dental units; as well as the effect of 5% sodium hypochlorite and chlorhexidine digluconate on it. The samples were collected in two moments: after disinfection and after procedure performed. The intakes were made at the distal end of the irrigation systems of the triple syringe of the dental units, eliminating the amount of water that runs through the whole pipe and then obtaining the sample without interrupting the water flow in a sterile bottle. A total of 10 samples were collected, one from each dental unit, immediately closing the bottle and transferring them to the UNACH laboratory for processing. Before carrying out the disinfection process, the laboratory results showed microbial contamination figures in the irrigation systems of the dental units above the acceptable values ​​of CFU (Colony Forming Units). The use of 5% sodium hypochlorite and 2% chlorhexidine digluconate showed the effectiveness of these substances as antimicrobials in the disinfection of irrigation systems of dental units with similar levels of effectiveness in this regard.