锥形束CT重建评价髁突骨性增龄性变化

发布时间：2018-03-25 22:51

本文选题：组织工程　切入点：颞下颌关节　出处：《中国组织工程研究》2017年19期

【摘要】：背景:锥形束CT能够发现髁突结构及形态的异常改变,包括骨皮质增厚、骨密度异常等,这些改变与颞下颌关节骨关节病密切相关。如何甄别骨关节病的影像学改变是正确诊断和治疗的前提。对于一般人群颞下颌关节各年龄段的髁突生理性改变以及性别差异,目前尚缺乏临床资料研究。目的:采用锥形束CT观察不同性别及年龄人群髁突骨性增龄性变化。方法:收集883例无颞下颌关节症状患者的锥形束CT资料,按年龄(7-8,9-10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26-27,28-29,30-35,36-40,41-45岁)分为22组,采用examvision软件测量髁突表面各点骨密度,并进行统计学分析。结果与结论:随年龄增长,对象髁突最前点、顶点骨密度增高达高峰期,后进入稳定期,40岁后呈下降趋势;髁突最后点骨密度增高,达到高峰后下降,30岁后保持稳定。男女各年龄段髁突最前点、顶点骨密度均大于最后点。各年龄段女性髁突各点骨密度均大于男性。结果证实,髁突骨密度具有一定的增龄性变化规律。髁突功能面骨密度大于非功能面。男性髁突发育迟于女性。实验为颞下颌关节骨性疾病的诊断提供了参考。
[Abstract]:Background: conical beam CT can detect abnormal condylar structure and morphology, including thickening of bone cortex, abnormal bone density, etc. These changes are closely related to temporomandibular osteoarthropathy. How to identify the imaging changes of osteoarthropathy is a prerequisite for correct diagnosis and treatment. Objective: to observe the condylar bone aging changes in different sex and age population by conical beam CT. Methods: 883 cases without temporomandibular joint symptom were collected. The patients were divided into 22 groups according to their ages. The bone mineral density on the surface of condylar process was measured by examvision software, and the data were analyzed statistically. Results and conclusion: with age, the anterior point of condylar process and the peak value of bone mineral density of the condylar process increased to the peak. At the end of the condylar process, the bone mineral density increased at the end of the condylar process, reached the peak and remained stable after the age of 30. The anterior point of the condylar process in every age group of men and women, The bone mineral density of the apex was higher than that of the last point. The bone mineral density of condyle of all ages was higher than that of the male. Condylar bone mineral density (BMD) of condyle is higher than that of nonfunctional surface. The condyle development of male is later than that of female. The experiment provides a reference for the diagnosis of temporomandibular joint osteopathy.
【作者单位】：天津医科大学口腔医院;北京市瑞泰口腔医院;天津医科大学医学影像学院;
【基金】：天津医科大学口腔医学院教学研究基金(kqjg201504) 天津市应用基础与前沿技术研究计划(15JCYBJC55100)~~
【分类号】：R782.6;R816.98

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