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目的 探讨前牙反矫治前后咀嚼效能的变化。方法 选择替牙期和恒牙列期的前牙反患者各 1 3名 ,分别进行FR3 功能矫治器和方丝弓矫治器治疗 ,采用 72 2型光栅分光光度计的吸光度法测定治疗前后的咀嚼效能。结果 FR3 功能矫治器治疗前后 ,吸光度值有显著性差异 ;方丝弓矫治器治疗前后 ,吸光度值无显著性差异。结论 前牙反矫治后咀嚼效能有很大提高。
Objective To investigate the changes of masticatory efficacy before and after anterior crossbite correction. Methods One and three patients with anterior teeth anti-plexus in the period of dentition and permanent dentition were selected and treated with FR3 functional appliance and square wire appliance respectively. The absorbance before and after treatment was measured by 72 2 spectrophotometer Chewing performance. Results FR3 functional appliance before and after treatment, the absorbance values were significantly different; square wire appliance before and after treatment, there was no significant difference in absorbance values. Conclusion The masticatory efficacy of anterior crossbite correction has been greatly improved.