[Reducing bacterial aerosols by ultrasonic scaling with Koutai or 1.5% H2O2 pre-rinse].
OBJECTIVE
To compare the effects of Koutai and 1.5% H2O2 on the bacterial aerosol contamination generated by ultrasonic scaling.


METHODS
Aerosol and splatter produced by ultrasonic scaling were collected pre and post rinsing with Koutai or 1.5% H2O2, aerobes and anaerobes were incubated and counted.


RESULTS
737 CFU aerobes and 749 CFU anaerobes were deducted after rinsing with Koutai, 355 CFU aerobes and 419 CFU anaerobes were deducted after rinsing with 1.5% H2O2. Both groups are effective in reducing aerobes and anaerobes CFUs (P < 0.01), although the former was much better than the latter in the reduction of aerobic CFUs in aerosols (P < 0.05).


CONCLUSIONS
Koutai or 1.5% H2O2 risen can significantly reduce aerobic and anaerobic CFU in aerosols.
Chen
H
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Department of Oral Medicine, Affiliated Hospital of Stomatology, School of Medicine Zhejiang University, Hangzhou 310031, China.
D000328:Adult; D000891:Anti-Infective Agents, Local / Q000494:pharmacology*; D001420:Bacteria, Aerobic / Q000187:drug effects*; D001421:Bacteria, Anaerobic / Q000187:drug effects*; D015169:Colony Count, Microbial; D006801:Humans; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D008875:Middle Aged
D000891:Anti-Infective Agents, Local; D006861:Hydrogen Peroxide