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J Endod：Micro-CT评估比较4种不同的充填材料所形成的缝隙差异

2018-01-14 lishiting MedSci原创

根尖充填材料缝隙
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这篇研究的目的是为了评估牙本质与根尖充填材料之间的缝隙体积。

这篇研究的目的是为了评估牙本质与根尖充填材料之间的缝隙体积。研究选取4种不同的根尖充填材料进行比较：ProRoot MTA (PRM； Dentsply Tulsa Dental， Tulsa， OK)， MTA Angelus (MAG； Angelus， Londrina， Brazil)， EndoCem MTA (ECM； Maruchi， Wonju， Korea)和RetroMTA (RTM； BioMTA， Seoul， Korea)。48颗人的单根离体牙通过镍钛器械进行预备，牙胶充填封闭。切除根尖3 mm，使用金刚砂钻预备根尖端。根尖端窝洞使用指定的4种实验充填材料进行充填，并分成4组(n = 10)。随后，对样本进行micro-CT影像扫描分析。重建样本的3维影像，检测牙齿表面(牙本质壁)和根尖充填材料之间的缝隙体积。计算牙齿结构和根尖充填材料之间缝隙体积的百分比(VG%)。数据使用Kruskal-Wallis和Mann-Whitney U检验进行统计学分析，显著性水平设置为95%。结果显示，PRM， MAG， ECM和RTM组的平均VG%值分别为0.00472， 0

评论区 (2)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2084313, encodeId=03202084313a5, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Wed Jul 18 12:22:00 CST 2018, time=2018-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1857554, encodeId=ba0b185e55428, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Mon Jul 16 12:22:00 CST 2018, time=2018-07-16, status=1, ipAttribution=)]
    2018-07-18 xjy02

    #Micro#

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=2084313, encodeId=03202084313a5, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Wed Jul 18 12:22:00 CST 2018, time=2018-07-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1857554, encodeId=ba0b185e55428, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Mon Jul 16 12:22:00 CST 2018, time=2018-07-16, status=1, ipAttribution=)]
    2018-07-16 jiafufeng@yaho

    #CRO#

    0