CHARACTERISTICS OF ELDERLY PEOPLE WITH HEALTHY PERIODONTAL STATUS-SYSTEMIC HEALTH, LIFE STYLE, CARIES EXPERIMENTS AND OCCULUSSION-

1)对神户地震灾区14692名成人进行口腔健康检查。结果表明：在50岁以上受试者组中，CPI为0的受试者DMFT发生率明显低于CPI为3或4的受试者（P<0.01）。2)在50岁以上患者中，根据牙槽骨丢失程度分为4组(1)无水平组，(2)少量组，(3)中度组，(4)重度组。无水平组与中、重度组比较有以下特点：(1)无水平组糖尿病患者比例较低（p<0.05）；(2)在生活方式相关因素中，无水平组吸烟、体质指数较低（p<0.05）、饮食习惯有规律（p<0.05）的个体比例较低。两组患者每日刷牙频次和牙科就诊频次差异无统计学意义(3)无水平组DT数和接受根管治疗的牙数差异有统计学意义（p<0.01）。无水平组与健康20岁组比较，左右两组同类牙的咬合力差异小于健康20岁组（p<0.01）。

1) 14,692 adults who suffered earthquake in Kobe were participated in oral health examination. The results showed that in over fifty aged subjects group, subjects with CPI 0 had fewer DMFT, especially DT and MT than subjects with 3 or 4 (P<0.01)2) Among over fifty aged examinee of ponorama X-ray examinatin, subjects were divided into four groups with focus on level of alveolar bone loss ((1)No level group, (2)A few group, (3)Moderate group, (4)Severe group). The characteristics of no level group were as follows, especially compared with moderate and severe groups(1)No level group showed less proportion of subjects with diabetes mellitus (p<0.05)(2)Among life style related factors, no level group showed less proportion of subjects with smoking habit (p<0.05), having lower body mass index (p<0.05), or having regular dietary habit (p<0.05) individually. However frequency of daily brushing and dental office visits were not significantly different(3)No level group showed less numbers of DT or teeth with endodontic treatment (p<0.01). However there were no significantly different of FT3) When no level group was compared with the healthy 20's people, differences of occlusal force at the same kind of teeth between left and right were less healthy 20's group (p<0.01)