在相邻的牙植入物中,形骨高度水平的差异,什么时候是显著的? 一个回顾性研究,至少1年的随访时间
概括
邻近的植入物之间的尖顶骨高度的差异显著影响边际骨损失. 非 splinted 植入物显示增加的骨损失与更大的高度差异,与 splinted 植入物不同.
科学领域:
- 牙科植入物学 牙科植入物学
- 牙周病学 牙周病学
- 生物材料科学 生物材料科学
背景情况:
- 牙骨的高度是牙植入成功的关键因素.
- 了解相邻植入物差异的影响对于长期预后至关重要.
研究的目的:
- 调查骨高度差异和邻近植入物周围的边缘骨损失之间的关系.
- 为了比较 splinted 与非 splinted 假肢设计对骨质损失的影响.
主要方法:
- 对至少两种相邻的植入物患者的周周放射和患者记录的回顾性分析.
- 根据假肢连接,将植入物分为有的和没有的类别.
- 脊骨高度差异分为四个间隔的分类 (<0.75mm,0.76-1.25mm,1.26-1.75mm,>1.75mm).
- 放射测量在基线,1-3年,并使用多级线性回归的最后一个随访.
主要成果:
- 非分裂的植入物显示出显著更大的边缘骨质损失进展,邻近植入物之间的垂直差异越来越大 (p<0.001).
- 与高度差异相似的非支柱植入物相比,支柱植入组的骨质损失较小 (1.73毫米) 在 mesial 侧面,骨质损失较大 (1.79毫米) 在远端侧面.
- 具体的骨损失值在不同的高度间隔和假肢类型中有所不同.
结论:
- 牙植入物周围的边缘骨损失进展受到邻近植入物之间的尖顶骨高度差异的影响.
- 非分割植入物修复与严重的边缘骨损失有关,当存在显著的尖顶高度差异时.
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