Evaluation of Masticatory Function by Using the Testing Gumi-jelly. Influence of Age and Sex on Dentate Subjects.
Evaluation of Masticatory Function by Using the Testing Gumi-jelly. Influence of Age and Sex on Dentate Subjects.
复制标题
使用测试龟尾果冻评价咀嚼功能。
DOI：
10.2186/jjps.38.89
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Kimie Kitamori
中科院分区：
文献类型：
--
作者：
M. Furuya;Minoru Yoshida;T. Nokubi;M. Yamamoto;Kimie Kitamori
为了了解年龄和性别在咀嚼功能上的差异，对46名牙列完整但无口颌功能障碍的受试者进行了以下实验。研究对象分为4组：老年男性4例(59.2±6.8岁)，老年女性6例(60.5±3.5岁)，青年男性26例(24.1±2.1岁)，青年女性10例(23.1±2.6岁)。首先，用咀嚼一定次数后从胶冻表面溶解的明胶的量来评价咀嚼效率。该技术基于明胶是胶冻中唯一的蛋白质，且溶解明胶的量几乎与胶冻的表面积成正比。其次，为了检测咀嚼胶冻时肌肉活动的节律和综合肌肉活动，用表面电极测量了双侧颞肌和咬肌的前部肌电活动，结果表明，四组之间在溶解明胶的量和肌肉活动的稳定性方面没有显著差异。青年受试者每划一次的综合肌肉活动有高于老年受试者的趋势。而男性的这一比例也往往高于女性。
To understand age and sex differences on masticatory functions, the following experiments were performed on 46 subjects, who have intact dentition without stomatognathic dysfunction. The subjects were classified into four groups: 4 elderly men (59.2±6.8 years), 6 elderly women (60.5±3.5 years), 26 young men (24.1±2.1 years) and 10 young women (23.1±2.6 years). And the masticatory efficiency and muscle activity during chewing the testing gumi-jelly (Glico Co., Osaka) were examined.Firstly, the masticatory efficiency was evaluated by using the amount of gelatin dissolved from the surface of the gumi-jelly after chewing a given number of times. This technique was based on the fact that gelatin was the only protein contained in the gumi-jelly, and the amount of dissolved gelatin was almost proportional to the surface area of the gumi-jelly.Secondly, in order to examine the rhythm of muscle activity and the integrated muscle activity during chewing the gumi-jelly, electromyographic activities were obtained from the anterior part of temporal muscles and masseter muscles with surface electrodes bilaterally.Consequently, there were no significant differences between the four groups concerning the amount of dissolved gelatin and the stability of muscle activity. The integrated muscle activity per stroke of young subjects tended to be higher than that of elderly subjects. And that of men also tended to be higher than that of women.