Co-relation between Tooth loss and trend of health status in the elderly

本研究旨在阐明口腔健康和80/20运动对整体健康和健康老龄化的作用。兵库县N镇老年人口总数为1068人，其中保留牙齿20颗以上的占14%，牙齿全部脱落的占40%。其中64%的人在接受医疗护理，2%的人在家。保留20颗或更多牙齿的人在喂养和日常生活方面的限制比没有牙齿的人少。那些保留了20颗或更多牙齿的人的自我评估的生活质量和社会活动也比没有牙齿的人要大。虽然有19%的无牙老年人每年住院30天以上，但在拥有20颗或更多牙齿的老年人中，只有不到G%的人在国民健康保险（National Health Insurance）下有同样的情况。有7%的无牙老年人在一年内住院3个月以上，而有20颗以上牙齿的老年人则没有相同的情况。有20颗或更多牙齿的人的年医疗费用和平均住院天数接近无牙的20%。N镇自1983年开始每年定期进行口腔健康检查的人群中，未接受专业机械洁牙（PMTC）相关口腔保健的人群，40 ~ 49岁平均每年牙齿脱落0.4颗，50 ~ 59岁平均每年牙齿脱落0.73颗。40 ~ 49岁和50 ~ 59岁分别进行过3次以上口腔健康护理和PMTC检查的人，年平均牙齿脱落数分别为0.21和0.33。

The study aimed to clarify the role of oral health and 80/20 movement on general health and healty aging.Among the whole elderly population in N town in Hyogo, 1068 peoples, 14% retained 20 or more teeth, 40% lost all the teeth. Sixty four percent of them were under medical care, and 2% were house-bound. Limitation in feeding and daily living was less in those retained 20or more teeth than edentulous people. Self assessed quality of life and social activity was larger in those retained 20 or more teeth than edentulous people, as well.While 19% of the edentulousness elderly spend 30 days or more as in-patient in the year, less than G% of those with 20 or more teeth were same status, under National Health Insurance. Seven persent of the edentulousness elderly spend 3 months or more as in-patient in the year, but none of those with 20 or more teeth were same status.Annual medical expenditure and average in-patient days for those with 20 or more teeth were nearly 20% of the edentulousness.Among users of annual regular orel health check ups which started from 1983 in N town, of those who had not a individual oral health care associated with professionl mechanical tooth cleaning (PMTC), average tooth loss in a year was 0.4 teeth for 40-49 years old, and 0.73 teeth for 50-59 years. Whereas, the number for those who had individual oral health, care and PMTC at lease 3 times after the check ups, average tooth loss in a year was 0.21 teeth for 40-49 years old, and 0.33 teeth for 50-59 years.