J Mech Behav Biomed Mater:种植牙愈合前三个月,不同设计种植体的稳定性和边缘骨的变化

2021-08-23 MedSci原创 MedSci原创

获得足够的种植体稳定性是骨整合长期成功的决定因素之一。共振频率分析是为了监测种植体稳定性而开发的,是一种公认的非侵入性工具,用于确定功能负荷的适当时间。然而,很少有研究对种植体愈合过程中两种不同宏观设

获得足够的种植体稳定性是骨整合长期成功的决定因素之一。共振频率分析是为了监测种植体稳定性而开发的,是一种公认的非侵入性工具,用于确定功能负荷的适当时间。然而,很少有研究对种植体愈合过程中两种不同宏观设计和临床情况之间的种植体稳定性和边缘骨水平变化进行持续评估和比较。

 

发表于J Mech Behav Biomed Mater的一项前瞻性临床试验评估了种植体愈合过程中柱形种植体和锥形种植体的稳定性和边缘骨水平变化。

研究纳入25 名参与者,随机分配到柱形或锥形种植体。根据说明,在上颌骨和下颌骨中安装了总共 32 颗长度为 9 mm或 11 mm的钛牙种植体。使用共振频率分析仪测量种植体植入时和愈合 2 周、4 周、6 周、8 周、10 周和 12 周后的种植体稳定性商数 (ISQ)。根据种植体植入时和愈合 4 周、8 周和 12 周后拍摄的数字射线照相胶片评估种植体周围边缘骨水平的变化。

 

初步结果显示,与上颌的柱形种植体相比,锥形种植体具有更高的 ISQ 值和更好的愈合趋势。对于下颌骨中的柱形和锥形种植体,观察到类似的 ISQ 值和愈合趋势。在柱形和锥形的种植体之间没有发现边缘骨丢失的显著差异。然而,在下颌骨中,在愈合 12 周后,锥形种植体的边缘骨丢失比柱形种植体略多。

综上,该研究结果表明,ISQ 愈合趋势和边缘骨丧失受种植体宏观设计和颌骨区域的影响。柱形种植体在下颌骨和上颌骨中显示出相似的 ISQ 愈合趋势和边缘骨丢失。锥形种植体更有益于维持上颌骨的种植体稳定性和边缘骨水平。

 

原始出处:

 

Yi-Han Su, et al., Evaluation of the implant stability and the marginal bone level changes during the first three months of dental implant healing process: A prospective clinical study. J Mech Behav Biomed Mater. 2020 Oct;110:103899. doi: 10.1016/j.jmbbm.2020.103899.  

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    2022-03-15 huangdf
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    2021-11-12 sunylz
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    2021-08-25 qjddjq
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