基于层次分析法的牙齿隐形正畸方案评价与优选

Evaluation and optimal selection of invisible orthodontic schemes based on analytic hierarchy process

随着科学技术的发展,牙齿正畸软件系统可以自动生成若干正畸方案。针对医患如何从中选择最满意方案的问题,提出基于层次分析法的牙齿隐形正畸方案综合评价与优选方法。结合牙齿正畸医师常用的正畸标准与患者的基本需求,从咬合、美观和正畸代价3个维度考虑,建立了咬合接触情况、牙列拥挤度、牙弓对称度、牙齿移动难度、正畸周期及费用等11个指标的牙齿隐形正畸方案优选层次模型。利用层次分析法构建成对比较矩阵,通过一致性检验,确定各指标及各方案权重,计算综合权重并排序得出最优方案。结合实际案例,对不同案例进行实验,同时引入专家评分法进行实验对比,结果表明,基于层次分析法的综合评价可为医患选择牙齿隐形正畸方案提供有效参考。

With the development of science and technology,the dental orthodontic software system can automatically generate several orthodontic schemes.Aiming at the problem of how to help doctors and patients choose the most satisfactory scheme,a comprehensive evaluation and selection method for the invisible orthodontic scheme based on the analytic hierarchy process was proposed.In light of the orthodontic standards commonly used by orthodontists and the basic demands of patients,this paper proposed a hierarchical model for selecting the best invisible orthodontic scheme.The model took into account such three dimensions as occlusion,aesthetics,and orthodontic costs,and encompassed eleven orthodontic indicators,such as occlusion contact,crowding degree of dentition,dental arch symmetry,tooth movement difficulty,orthodontic cycle,and cost.The analytic hierarchy process was utilized to construct a paired comparison matrix,pass the consistency test,determine the weight of each index and each program,calculate the comprehensive weight,and conduct the sorting,thusobtaining the optimal program.Based on case studies,the paper conducted experiments on different cases,and resorted to the expert scoring method for experimental comparison.The results show that the comprehensive evaluation based on the analytic hierarchy process can provide an effective reference for doctors and patients to choose an appropriate invisible orthodontic scheme.