Reducing bacterial aerosols by ultrasonic scaling with Koutai or 1.5% H2O2 pre-rinse
Chen, H.
Zhonghua Kou Qiang Yi Xue Za Zhi 35(5): 381-382
2000
ISSN/ISBN: 1002-0098 PMID: 11780251 Document Number: 520555
To compare the effects of Koutai and 1.5% H2O2 on the bacterial aerosol contamination generated by ultrasonic scaling. 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. 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). Koutai or 1.5% H2O2 risen can significantly reduce aerobic and anaerobic CFU in aerosols.