COMPLETE DENTURE SERVICE PSYCHOPHYSIOLOGICAL CRITERIA

建议进行的两项研究的具体目的是：(1) 改善咬合、垂直尺寸、固位力和 适合性差的义齿和新义齿对咀嚼稳定性的影响 肌电活动的表现、定性和定量测量 咬肌与患者满意度；(2)咬肌之间的关系 肌力、肌电静默期、咀嚼性能和患者 满足感；以及(3)咀嚼方式的颗粒大小 咀嚼性能好和差的义齿佩戴者的选择性。 在研究I中，将从250名受试者中挑选80名假牙佩戴者 代表两个子组，一个是上级组，另一个是差级组 基于花生的标准测试的咀嚼性能。在……里面 除了与患者和义齿特征相关的主观数据外， 每个参与者都会表演一系列的咀嚼表演， 吞咽阈值测试包括咬肌肌电记录， 力测量和肌电静默期记录在两个地点，一个 相隔一周。除了咀嚼性能的比较外，肌电活动 和患者满意度的标准，颗粒大小分布 将对食物进行分析，以辨别咀嚼过程中的任何差异 关于颗粒大小的选择性。额外的假牙佩戴者 可能会被添加到研究I中假牙适合性不佳的人中，以便 实现至少30名患者完成整个系列的 研究II中的测试。每个参与者将执行与研究中相同的测试 研究I四种义齿修复体修复术前后的对比研究 改善其咬合、垂直尺寸、固位力和稳定性 旧义齿，以及在新义齿插入后的三个时间间隔 假牙。每个义齿都有三周的适应期。 修改。义齿修复体对咀嚼功能的影响 性能、肌电活动和患者满意度将计算并 与新义齿相比。一种基于计算机的肌电分析方法 一种跨位置重新定位电极系统和可靠的方法 已经被开发出来了。需要这样的功能评估来确定 旧义齿的低成本义齿改装是否提供了功能性 与昂贵的义齿翻修相比，它们的效果更值得使用。我们的长期计划 目标一直是改进义齿设计和治疗程序， 将提高义齿的功能有效性和舒适性，并减少 服务的成本。

The specific aims of the two proposed studies are to determine the: (1) effects of improvement in occlusion, vertical dimension, retention and stability of poorly fitting dentures and of new dentures upon masticatory performance, qualitative and quantitative measures of emg activity of masseter muscles and patient satisfaction; (2) relationships among masseter muscle effort, emg silent periods, masticatory performance and patient satisfaction; and (3) patterns of chewing in terms of particle size selectivity in denture wearers with good and poor masticatory performances. In Study I, 80 denture wearers would be selected from 250 subjects to represent two subgroups, one with superior and the other with poor masticatory performance based upon a standard test with peanuts. In addition to subjective data related to patient and denture characteristics, each participant would perform a series of masticatory performance and swallowing threshold tests including emg recordings of masseter muscles, force measurements and emg silent period recordings at two sittings, one week apart. Besides comparisons of masticatory performance, emg activity and criteria of patient satisfaction, the particle size distributions of food would be analyzed to discern any differences in the chewing process with respect to selectivity of particle size. Additional denture wearers may be added to those with poorly fitting dentures from Study I in order to achieve a minimum of 30 patients having completed the entire series of tests in Study II. Each participant would perform the same tests as in Study I before and after each of four denture modifications are made to improve the occlusion, vertical dimension, retention and stability of their old dentures, as well as at three time intervals after the insertion of new dentures. A three-week adaptation period would be given for each denture modification. The influence of denture modifications on masticatory performance, emg activity and patient satisfaction wold be calculated and compared with that achieved by new dentures. A computer based emg analysis system and a reliable method to relocate electrodes across sittings have been developed. Such functional assessment is needed to detemine whether or not low cost denture modifications of old dentures provide functional efficacy to merit their use over high cost denture remakes. Our long term goal has been to improve denture designs and treatment procedures which would increase functional effectiveness and comfort of dentures and reduce the cost of services.