J Clin Periodontol:拔牙窝连续愈合过程的X线和组织学观察

2018-11-18 MedSci MedSci原创

本文旨在评估拔牙后颊侧牙槽骨缺损的拔牙窝牙槽嵴增生和连续愈合过程。

本文旨在评估拔牙后颊侧牙槽骨缺损的拔牙窝牙槽嵴增生和连续愈合过程。

方法;八只比格犬中完全切除颊骨板,拔除双侧三个下颌前磨牙的牙根。一侧用生物材料(试验组)移植,对侧部位(对照组)自然愈合。在1,2,4和8周后进行观察,并且所有部位均匀分布(每组和每个时期n = 6)。进行射线照相/组织形态学分析。

结果:拔牙窝的自发愈合中,至第4周,再生牙槽嵴的尺寸逐渐增加,之后保持稳定。但放射线/组织形态学分析显示,与原始组织相比,8周的冠侧和中间位点的尺寸减少明显。骨移植保留了牙槽嵴的原始尺寸,空间内新形成的骨在观察期间不断扩展到该空间的最外边界。

拔牙窝的自发愈合导致牙槽窝尺寸的变化,牙槽嵴增生可以提供新骨连续生长的空间,导致最终尺寸与原始牙槽嵴相当。

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    2019-08-18 feather89
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    2018-11-19 piaojinhua
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    2018-11-19 xre2013
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    2018-11-18 医者仁心5538

    学习了

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