义齿经验对全口义齿戴用者咀嚼效率影响的纵向研究

THE LONGITUDINAL INFLUENCE OF THE DENTURE EXPERIENCE ON THE CHEWING ABILITY OFCOMPLETE DENTURES

目的 :了解义齿经验对咀嚼效率的纵向影响情况 ,探讨长期戴用全口义齿者修复特点。方法 :本文采用吸光度法分别对有旧义齿组 (实验组 )和无旧义齿组 (对照组 )初戴全口义齿后 2周 ,1 ,3 ,4,5 ,6个月的咀嚼效率分别进行测试 ,并将结果进行统计分析。结果 :二组不同时期咀嚼效率各不相同 ,总的趋势是逐步提高的。实验组早期提高很快 ,1个月后减缓。而对照组 3个月后提高较快 ,因此 ,二组差距逐渐减小 ,至 6个月无显著差异。结论 :①吸光度法测定咀嚼效率结果稳定 ,可靠、重复性好 ,测试方法科学 ,简易迅速。②初戴全口义齿后 6个月内咀嚼效率呈递增趋势。③义齿经验对咀嚼效率恢复的速度有较大的影响 ,其作用主要表现在早期 (1个月内 )。

Objective:To investigate the influence of complete denture wears' experience on chewing efficiency.Methods:A detailed study was made,through spectrophotometry,in two groups of patients (both were edentulous;the testing group,with previous complete denture wearing experience,and the control group,without).The chewing efficiency in different periods of time,2 weeks,1,3,4,5,6 months was compared.Results:The chewing efficiency of the two groups was different at different periods of time.The test group's efficiency was stronger in the early period,then decreased a month later.Efficiency in control group was improved three months later.Thereafter,the difference between the two groups began to diminish,and finally disappeared six months later.Conclusion:1.Testing the chewing efficiency with spectrophotometry is considered to be reliable and stable method.2.The chewing efficiency tends to rise within the first six months.3.The experience of complete denture has a helpful effect on the restoration of chewing efficiency.