隐形矫治器对骨性III类患者髁突的影响
摘要
35例符合纳入标准的骨性III类患者作为研究对象按治疗方式分为观察组隐形矫治器19例和对照组固定矫
治器26例治疗前后均拍摄CBCT获取Dicom数据后利用Dolphin11.9及Mimics21.0软件测量髁突前后径、
髁突内外径、关节前间隙、关节上间隙、关节后间隙、关节内间隙、关节中央间隙、关节外间隙、关节后间隙、髁
突总体积、髁突表面积、皮质骨密度及松质骨密度等参数进行治疗前、后数据差值计算。结果两组关节间隙前
后差值比较仅关节前间的差值差异有统计学意义P0.05但是各关节间隙的变化形式有所不同不同组别治
疗前后分别比较两组髁突体积和表面积均未出现明显变化P0.05对照组松质骨骨密度减小差异有统计学
意义P0.05。结论隐形矫治器有利于改善骨性III类患者髁突前移位的情况且骨结构更为稳定。
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