软组织侧貌预测系统的建立和研究

Establishment and Research of the Computerized Profile and Photo Prediction System

目的 :结合临床实际 ,建立一个正畸治疗中软组织侧貌改变的矫治预测系统 ,并对系统进行实用性的可行性论证。方法 :自主开发侧貌预测软件HOPS 40 0 ,以所建系统对 2 4例安氏Ⅱ类 1分类错功能矫治的软组织头影测量预测结果和治疗结果进行对比分析 ,比较二者的一致程度。结果 :在 95 %可信限内 ,3种软组织头影测量分析方法 (Burstone ,Holdway,Bishara)中的 30项指标有 19项一致 ;尤其是 9项角度测量指标有 7项一致 ;18项线距测量结果有 10项一致 ;3项线距比指标也有 2项一致。结论

Objective:The study aims to develop a lateral oral facial profile and photo prediction system and then to verify its reliability. Methods: 24 paired lateral cepholagrams in both pre and post treatment were selected and analyzed by three soft tissue cephalometric analysis methods in this study. All cases were of the angel Ⅱ division I malocclusion, and had been successfully treated with the orthopedics therapy by activator or Frankel appliance. Soft tissue profile prediction had been automatically completed, following the hard tissue interactive orthopedics prediction approach in the pretreatment lateral cephalogram, and the predictive results were compared to the same cepholametric analysis in post treatment cephalogram. Results: There are 19 coincidence indicators in 30 measurements of three soft tissue cephalometric analysis, and 7 in 9 angel measurements, 10 in 18 instance measurements, 2 in 3 instance ratio measurements is consistency, respectively. Conclusion: The results indicate that the lateral oral facial profile and photo prediction system is effective in profile prediction.\;