Methods The changes of masticatory performance of the cases wearing dentures were studied before and after wearing by using the light absorption method and peanuts as test food.

• 用花生米为测试物,采用吸光度法,对对照组健康中老年人的咀嚼效能,以及实验组患者戴入义齿前后咀嚼效能进行测定和影响因素的分析。