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- 2018
基于锥形束CT的单侧完全性唇腭裂患者上前牙牙槽骨厚度及高度的研究
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Abstract:
摘要 目的:采用锥形束CT(CBCT )对单侧完全性唇腭裂(UCLP)患者上前牙区牙槽骨的厚度及高度进行评估,比较裂隙侧与非裂隙侧的差异。方法:对30例单侧完全性唇腭裂患者进行CBCT扫描,应用Invivo测量软件,将裂隙侧与非裂隙侧中切牙及尖牙作为研究对象,测量其唇、腭侧牙槽骨在釉牙骨质界根方3 mm、6 mm和根尖点冠方1 mm处的牙槽骨厚度,及唇、腭侧牙槽嵴顶点(AC)与釉牙骨质界点(CEJ)之间的距离,作为牙槽骨高度的衡量标准(AC-CEJ)。将裂隙侧与非裂隙侧的测量数据进行配对t检验。结果:裂隙侧与非裂隙侧的中切牙唇、腭侧牙槽骨厚度,在釉牙骨质界根方3 mm和6 mm水平处的差异均有统计学意义(P<0.05),非裂隙侧牙槽骨厚度大于裂隙侧。而尖牙唇、腭侧牙槽骨厚度的差异无统计学意义。双侧中切牙、尖牙AC-CEJ距离在唇侧的差异具有统计学意义(P<0.05),裂隙侧距离大于非裂隙侧,而在腭侧二者差异无统计学意义。结论:对于单侧完全性唇腭裂患者,裂隙侧前牙牙槽骨厚度和高度均受到裂隙的影响,正畸治疗前应拍摄CBCT对其牙槽骨进行准确评估
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