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采用吸光度法测定３０例肯氏Ⅱ类牙列缺损患者戴用单侧游离端可摘义齿前及戴用后１周、１月、３月的咀嚼效能。结果表明：①肯氏Ⅱ类牙列缺失患者咀嚼效能明显低于正常对照组，失牙越多，单侧丧失咀嚼效能越明显，失牙较少时，机体可通过代偿维持吞咽反射前的咀嚼效能。②戴用义齿后，患者的咀嚼效能随戴用时间的增长而逐步提高。但均低于正常对照组。③影响单侧游离端义齿咀嚼效能的主要因素有性别、牙槽嵴吸收程度及年龄。而缺失单位数、咀嚼习惯、义齿所在位、戴义齿经验、基托材料与咀嚼效能无关
Absorbance method was used to determine the masticatory efficacy of 30 patients with Kennedy class Ⅱ dentition defect before wearing unilateral free ends and 1 week, 1 month, 3 months after wearing. The results showed that: (1) The masticatory efficiency of Kennedy Ⅱ dentition deficit patients was significantly lower than that of the normal control group. The more lost teeth, the more unilateral masticatory loss, the less tooth loss, Chewing performance. ② wear denture, the patient's chewing performance gradually increase with the growth of wearing time. But lower than the normal control group. ③ The main factors affecting the masticatory performance of unilateral free end denture were gender, degree of alveolar ridge absorption and age. However, the number of missing units, chewing habits, dentures where the bit, the denture experience, the base material has nothing to do with chewing performance