The New Checkup System of Oral Function for Adult Population in Health Promotion

研究I：牙咬合和咀嚼功能的主观和客观评估之间的相关性的特定特征。我们检查牙咬合条件的咬合诊断系统，使用压力敏感shcets（牙科Prescale）作为牙咬合和咀嚼功能的客观评估。采用咀嚼系统功能问卷进行主观评价。239名受试者分为三个年龄组：35-44岁（男：28，女：21），45-54岁（男：54。女：统计学分析所用参数为：咬合力平衡、咬合接触面积、咬合力中心和咬合力。同时采用缺失牙数、健康牙数、DMFS指数和CPI（牙周状况）进行统计分析。采用Windows-SAS软件进行统计学处理 关于我们 em（版本6.12）。多元回归分析表明，在35-44岁年龄组（男性）中，对咀嚼能力变化最有预测力的因素是现存牙数和平均咬合力（r2=0.483）。在55-64岁年龄组（男性）中，最能预测咀嚼能力变化的因素是咬合力平衡（r2=0.483）。在35-44岁年龄组（女性）中，咬合力中心和咬合力平衡对咀嚼能力的预测作用最大（r ~ 2 =0.387），咀嚼能力自我评估的预测作用主要来自咬合状况，而非牙齿状况。结果表明，客观评价所获得的参数对促进成年人咀嚼能力的口腔健康具有潜在的益处。研究二：食物接受反应评分百分位曲线评价咀嚼能力。总和值的百分位值计算对31种食物的反应得分（食物接受反应得分），以评价个体的咀嚼能力，并制作与年龄的百分位数曲线，计算百分位数值，使用1999年千叶市进行的口腔调查结果，调查对象为2，450名成年人（1，252名女性，1，198名男性）直到20岁至60岁。食物接受反应评分为1 - 5分，取决于问卷中列出的咬食物的能力，将每种食物的评分相加（最大值155，最小值31）。当受试者被分成两组时，25%以下的瓦片值能够从近似曲线获得，而大于25%的瓦片值的组，缺失牙数和DMFT指数故意偏高，存在牙数和健康牙数故意偏低。根据这些结果，受试者在低于25%的瓦片值时预测咬合和咀嚼功能存在一定问题。食物接受反应分数的百分位数曲线可作为成年人食物接受状况的口腔信息指标。少

Study I : Age-specific characteristics of correlations between subjective and objective assessments of dental occlusion and chewing function.We examined dental occlusal conditions by means of the occlusal diagnostic system using pressure sensitive shcets(Dental Prescale) as objective assessments of dental occlusion and chewing function. A questionnaire about function of the masticatory system was employed as a subjective assessment. The 239 subjects were divided into three age-groups ; 35-44 years (male : 28, female : 21), 45-54 years (male : 54. Female : 82) and 55-64 years male : 13, female : 41)Parameters used for the statistical analysis were as follows : balance of bite force, occlusal contact area, center of bite force and bite force obtained from occlusal diagnostic system using pressure sensitive sheets. The numbers of missing teeth and sound teeth, the DMFS index and CPI(periodontal condition) were also used. The data were treated statistically by means of the Windows-SAS syst … More em (Ver.6.12). Multiple regression analysis was used to study the separate effects of each occlusal examination on self-assessment of function of the masticatory system.In the 35-44 age group (male), the most predictive factors for change of chewing ability were the number of present teeth and the mean bite force (r2=0.483). In the 55-64 age group (male), the most predictive factors for change of chewing ability was balance of bite force (r2=0.483). In the 35-44 age group (female), the most predictive factors for chewing ability were center of bite force and the balance of bite force (r2=0.387).The predictive factors of self-assessment of chewing ability were chosen from the occlusal conditions than dental status. Tjese results show that parameters obtained by objective assessment have potential benefits for oral health promotion of chewing ability for adult population.Study II : Evaluation of chewing ability by means of the percentile curve of food-acceptance response score. The percentile value of a sum total value (food acceptance response score) was calculated for the response score to 31 kinds of food to evaluatc the chewing ability of the individual using the questionnaire, and the percentile curve against age was created.To calculate percentile value, we used the results of the oral survey performed by Chiba-City in 1999, participants were 2, 450 adults (1, 252 women, 1, 198 men) until 20 years to 60 years old. Food-acceptance response score are 1 to 5 depend on ability to bite food listed in questionnaire, the score for every food was totaled (maximum 155, minimum value 31).When subject was divided into two groups of under 25% tile value that was able to be acquired from the approximation curve, and a more than, by the group of under 25% tile, the number of missing teeth and DMFT index were intentionally high, and the number of the present teeth and the number of sound healthy teeth were intentionallymissing teeth and DMFT index low. Having a certain problem in the occlusion and chewing function is predicted from these results by the subject below 25% tile value. It is considered that the percentile curve of a food-acceptance response score is useful as a oral information index of the food-acceptance situation in adult population. Less