“…Yoneyama et al and Hirota et al reported that providing professional oral care daily to the inhabitants of a nursing home led to a significant improvement in the gingival status, fever duration, types of pharyngeal bacteria, and that even when the frequency of oral health care was reduced to once or twice a week, a positive effect could be expected. 7,8,10,26 Ohsawa et al also reported that providing oral care 2-3 times per week reduced the frequency of fever, decreased the risk of pneumonia, and improved the ability to live independently. 14 In a study on dependent elderly, Adachi et al reported that providing professional oral care for 24 months led to a significant decrease in the frequency of fever, the number of Candida albicans organisms, methylmercaptan amount in expiration, and the number of Staphylococcus spp.…”