It has been demonstrated that contamination of the insides of high-speed dental turbines occurs and that bacteria as well as viruses may remain infectious when expelled from such turbines during subsequent use.
Consequently, it has been widely recommended that a high-speed turbine be sterilized after each patient.
The purpose of this study was to evaluate the effect of steam autoclaving on a high-speed dental turbine with a contaminated turbine chamber.
Streptococcus salivarius and endospores of Bacillus stearothermophilus were used as test organisms to determine the effectiveness of 4 different small non-vacuum autoclaves and one vacuum autoclave.
The study demonstrated different efficiencies among the small non-vacuum autoclaves, the best showing close to a 6 log reduction of the test organisms inside the turbine chamber.
When cleaning and lubrication of the high-speed dental turbine was carried out before autoclaving, this level of reduction was observed for all the examined non-vacuum autoclaves.
It is concluded that cleaning before sterilization is essential for safe use of high-speed dental turbines and that small non-vacuum autoclaves should be carefully evaluated before being used for the reprocessing of hollow instruments such as high-speed turbines.
Mots-clés Pascal : Stérilisation, Equipement, Chirurgie, Dent, Prévention, Contamination, Infection, Streptococcus salivarius, Streptococcaceae, Micrococcales, Bactérie, Bacillus stearothermophilus, Bacillaceae, Bacillales, Turbine, Grande vitesse, Traitement, Homme, Stomatologie, Dent pathologie
Mots-clés Pascal anglais : Sterilization, Equipment, Surgery, Tooth, Prevention, Contamination, Infection, Streptococcus salivarius, Streptococcaceae, Micrococcales, Bacteria, Bacillus stearothermophilus, Bacillaceae, Bacillales, Turbine, High speed, Treatment, Human, Stomatology, Dental disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0153650
Code Inist : 002B25M. Création : 16/11/1999.