宫外永久下犬的喷发性运动:基于10名单侧宫外症儿童和6名双侧宫外症儿童的连续骨科影像的案例系列研究
I Kjær1, M Svanholt2,3, P Svanholt2,4
1Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. ik@sund.ku.dk.
概括
宫外下犬表现出不同的喷发模式,取决于它们是单边的还是双边的. 位置和冠状形态影响喷发方向,双边病例诊断较早,并显示出更严重的偏差.
科学领域:
- 牙科 牙科是指牙科的专业.
- 矯正牙科 矯正牙科是一種矯正牙科.
- 放射学 放射学是一门学科.
背景情况:
- 永久下犬的子宫外喷发是一个临床问题.
- 了解喷发模式可以帮助早期诊断和治疗计划.
研究的目的:
- 为了评估外阴下犬的喷发性运动模式,使用序列骨干图.
- 为了确定喷发方向是否可以通过狗的位置和形态学来预测.
主要方法:
- 分析了16名患有单侧或双侧下犬外症的个体的41个骨科影像.
- 放射图被分类为ectopia类型,相对于主犬轴 (Ax) 的初始永久性狗位置.
- 注册的变量包括年龄,时间间隔,狗的成熟度,根/冠状形态和位置 (距离/角度).
主要成果:
- 在早期诊断的双边宫外病 (大约. 9年),而不是单方面 (大约9年). 12年) 的时间.
- 异胎性狗皮喷发模式 (向上,向下,前部) 取决于位置和冠状形态.
- 皇冠形态在喷发期间发生了变化;双边病例中观察到曲的根;双边病例中左侧显示出更严重的偏差.
结论:
- 在单边和双边外阴下巴犬之间存在显著的差异.
- 在诊断年龄,放射频率,位置,形态和喷发性运动中发现的关键差异.
- 喷发方向可以从最初的狗位置和形态学来预测.
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