线性总义齿咀嚼效能的研究

Abstract

目的测试分析接触面积最小的型——线性总义齿的咀嚼效能。方法采用固定咀嚼时间与咀嚼次数的方法，对不同牙槽嵴条件的线性总义齿修复患者进行不同戴牙时间段咀嚼效率的测定。结果线性总义齿修复组的牙槽嵴条件明显较差，达Ⅲ、Ⅳ级者占81.8%，而在解剖式总义齿修复组仅占43.3%。咀嚼时间固定,线性总义齿的咀嚼效率与解剖式总义齿差异无显著性(P>0.05)，而咀嚼次数固定时,前者则低于解剖式总义齿(P<0.05)。结论对于刃状、低平及凹陷状剩余牙槽嵴的无牙颌患者，应用线性总义齿可恢复较好的咀嚼效能，但需要较多的咀嚼次数。

Objective To study how the linear occlusal dentures perform the function with the most restricted occlusal contact areas. Methods A study of masticatory efficiency was made for 33 patients wearing linear occlusal dentures compared with that of 30 patients wearing anatomic occlusal dentures. Rusults There is no difference between the linear occlusal dentures group and the controlled group when tested by fixing mastication time, while 81.8% of the experimental group with severe RRR, and the controlled group being only 43.3%.Conclusion Linear occlusal dentures work well for edentulous patients, especially for the cases with flat or depressed residual ridges.