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目的:研究错畸形患者在正畸治疗前后咀嚼效率的变化,并探讨其影响因素。方法:对156例成人错畸形患者在正畸治疗前及正畸治疗结束后6个月采用称重法进行咀嚼效率测定,并与对照组(40例)进行比较。结果:所有病例经系统正畸治疗后咀嚼效率比治疗前有显著提高(P<0.01);在正畸治疗前,安氏Ⅰ类的咀嚼效率明显高于安氏Ⅱ类和安氏Ⅲ类(P<0.01),安氏Ⅲ类患者的咀嚼效率最低;在正畸治疗结束6个月后,各类安氏错畸形患者的咀嚼效率得到明显提高(P<0.01);安氏Ⅰ类患者经正畸治疗后咀嚼效率与对照组比较差异无统计学意义(P>0.05)。结论:各类安氏错畸形在系统的正畸治疗后患者的咀嚼效率可以得到显著提高,在面部畸形得到矫正治疗的同时有效地提高口腔功能,达到美观与功能的协调和统一的正畸治疗目标。
Objective: To study the changes of masticatory efficiency before and after orthodontic treatment in patients with malocclusion, and to explore the influencing factors. Methods: The masticatory efficiency of 156 adult patients with malformation deformity was measured by weighing method before orthodontic treatment and 6 months after orthodontic treatment, and compared with the control group (40 cases). Results: The masticatory efficiency in all cases after orthodontic treatment was significantly higher than that before treatment (P <0.01). Before orthodontic treatment, the chewing efficiency of Class Ⅰ was significantly higher than that of Class Ⅱ and Class Ⅲ P <0.01). The masticatory efficiency was the lowest in patients with Class III malformations. After 6 months of orthodontic treatment, the masticatory efficiency was significantly improved in all malformation patients (P <0.01) After orthodontic treatment masticatory efficiency compared with the control group no significant difference (P> 0.05). CONCLUSION: All kinds of malocclusion of Angle malocclusion can improve the masticatory efficiency of the patients after orthodontic treatment. It can effectively improve the oral function while the facial deformity is corrected and achieve the coordination and uniform orthodontics of the aesthetics and function Treatment goals.