Health care and supervision of dentures worn by bedridden elderly using ozone

本研究旨在探讨臭氧对老年人牙菌斑主要组成菌--白色念珠菌（C.albicans）的消毒效果，以进一步加强对卧床不起的老年人戴义齿的卫生保健和监督。此外，我们使用的感官测试，以建立的程度，在1997年，我们组装了必要的实验室设备，以调查臭氧的消毒性能与白色念珠菌。高压电池和气泵串联连接到臭氧发生器，臭氧发生器又通过硅管连接到泡沫或气泡发生器。后一种发生器的下端悬浮在实验室烧杯中的水中。将空气泵入臭氧发生器中，由高压放电产生的臭氧化空气通过臭氧发生器进入水容器。用臭氧密度计确定了臭氧浓度与电压的关系。将臭氧浓度设定在三个水平，结果显示，在臭氧浓度为23 ppm时，细菌数量从10^1 CFU/ml下降到约10^3 CFU/ml需要25分钟，在41 ppm时需要20分钟，在49 ppm时需要15分钟。1998年，臭氧对假牙气味的除臭效果也进行了研究。结果发现，经过仔细检查的假牙的气味在10分钟内就完全消失了。综上所述，通过臭氧清洁假牙被证明是为卧床不起的老年人提供假牙卫生护理的适当方法。

The purpose of this research was to look into the possibility of furthering the health care and supervision of dentures worn by the bedridden elderly.We set out to investigate the disinfectant effect of ozone on Candida albicans (C.albicans), the main constituent bacterium of dental plaque. In addition we used on organoleptic test to establish the extent of deodorization.In 1997, we assembled the necessary laboratory equipment to investigate the disinfectant properties of ozone with regard to C.albicans. A high voltage battery and an airpump were attached in tandem to the ozone generator which in turn was connected to a foam, or bubble, generator by means of a silicon tube. This latter generator was suspended with the lower end in water contained in a laboratory beaker. Air was pumped into the ozone generator and the ozonized air arising from the high voltage discharge passed into the water container by way of the ozone generator. The relationship between the generated ozone concentration and the voltage was confirmedby means of an ozone densitometer. The ozone concentration was set at three levels.The results showed that it took 25 minutes for the number of bacteria to decline to approximately 10^3 CFU/ml from 10^1 CFU/ml at an ozone concentration of 23 ppm, 20 minutes at 41 ppm and 15 minutes at 49 ppm.In 1998, the deodorant effect of ozone on denture odor was also investigated.It turned out that the odor of dentures subjected to scrutiny had completely dissipated within 10 minutes.To sum up, cleaning dentures by means of ozone was shown to be an appropriate means of providing for the hygienic care of the dentures of thebedridden elderly.