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近年，日本东北大学的佐佐木教授及其研究小组研究发现，刷牙可以减少老年人支气管炎和肺炎的发病率。研究人员对静冈县特别护理老人院的４６名老年人进行了调查。他们将老年人分为Ａ组和Ｂ组。Ａ组的老年人在午饭后由老人院的女护理人员为其精心地刷牙，牙科护士每周巡回２至?
In recent years, Professor Sasaki of Japan’s Tohoku University and his team have found that brushing can reduce the incidence of bronchitis and pneumonia in the elderly. Researchers conducted a survey of 46 seniors in Shigang Special Nursing Homes. They divided the elderly into groups A and B. A group of elderly people after nursing home nursing staff for their carefully brushing, dental nurses visit 2 to a week?