含漱口泰及1.5% H2O2对减少超声洁牙产生的细菌性气雾的研究

目的 了解口泰３及１．５％Ｈ２Ｏ２漱口对减少超声洁牙产生的细菌性气雾的作用。方法 在患者胸前约离口腔２４ｃｍ处和置普通需氧平板及ＣＤＣ血琼脂平板，用空气沉降法收集细菌１ｍｉｎ，分组对超声波洁牙经口泰及１．５％Ｈ２Ｏ２漱口前后产生的气雾作需氧菌和厌氧菌测定。结果 口泰漱口后，气雾中的需氧菌减少７３７ＣＦＵ，厌氧菌减少７４９ＣＦＵ；１．５％Ｈ２Ｏ２漱口后，气雾中的需氧菌减少３５５ＣＦＵ，厌氧菌减少了４

Reducing bacterial aerosols by ultrasonic scaling with Koutai or 1.5% H2O2 pre-rinse

Objective To compare the effects of Koutai and 1 5% H 2O 2 on the bacterial aerosol contamination generated by ultrasonic scaling Methods Aerosol and splatter producted by ultrasonic scaling were collected pre and post rinsing with Koutai or 1 5% H 2O 2, 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% H 2O 2 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) Conclusion Koutai or 1 5% H 2O 2 risen can significantly reduce aerobic and anaerobic CFU in aerosols