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J Endod:中心往复和偏心持续旋转运动模式的机械根管预备评估:一项micro-CT研究

2020-07-21 lishiting MedSci原创

这篇研究的目的是通过micro-CT比较Reciproc和XP-endo Shaper系统对下颌磨牙近中根管的预备,评估牙本质和根管体积变化、未接触牙本质壁百分比、硬组织碎屑累积的量等

这篇研究的目的是通过micro-CT比较Reciproc和XP-endo Shaper系统对下颌磨牙近中根管的预备,评估牙本质和根管体积变化、未接触牙本质壁百分比、硬组织碎屑累积的量和根尖1/3的根管偏移程度。

研究选取了24颗具有双近中根管及单个根尖孔的解剖配对下颌磨牙,并基于预备系统随机分为2个实验组(n=12)。样本在预备前后通过SkyScan 1176 microtomograph (Bruker-microCT, Kontich, Belgium)进行扫描,分辨率为17.42 μm。数据通过Student's t检验和Mann-Whitney检验进行统计学评估,显著性水平设置为5%。

结果显示,2者间整个根管和根管冠及中1/3的未接触表面积存在显著性差异,并且XP-endo Shaper组的未接触表面积最低(P <0.05)。Reciproc组在整个根管以及根管中及尖1/3累积硬组织碎屑的量更高。2组间牙本质移除的体积或根管体积及表面积的增加无显著性差异(P >0.05)。

结论:在根管系统中,XP-endo Shaper系统比Reciproc系统接触更多根管壁并且产生更少的硬组织碎屑。

原始出处:

P O F Fernandes, L G Freire, et al. Assessment of mechanical root canal preparation with centric reciprocating or eccentric rotary kinematics: a micro-computed tomography study. J Endod., 2020 Jun 18;S0099-2399(20)30395-2. doi: 10.1016/j.joen.2020.06.005.

 

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    2020-08-01 yzh409
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    2020-09-29 xjy02
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  6. [GetPortalCommentsPageByObjectIdResponse(id=1857892, encodeId=22b8185e8928d, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, 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=Tue Jul 06 00:42:01 CST 2021, time=2021-07-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1696360, encodeId=002b16963605c, content=<a href='/topic/show?id=0107934e0a5' target=_blank style='color:#2F92EE;'>#转运#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93470, encryptionId=0107934e0a5, topicName=转运)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=47c429881595, createdName=yzh409, createdTime=Sat Aug 01 13:42:01 CST 2020, time=2020-08-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2084595, encodeId=48742084595cd, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Tue Sep 29 22:42:01 CST 2020, time=2020-09-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1391694, encodeId=6b1c1391694df, content=<a href='/topic/show?id=5615622e569' target=_blank style='color:#2F92EE;'>#根管预备#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=92, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62275, encryptionId=5615622e569, topicName=根管预备)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c5bf2500092, createdName=124988c7m95暂无昵称, createdTime=Thu Jul 23 01:42:01 CST 2020, time=2020-07-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1523039, encodeId=6657152303972, content=<a href='/topic/show?id=c72462241ff' target=_blank style='color:#2F92EE;'>#根管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=62241, encryptionId=c72462241ff, topicName=根管)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ba5e11492705, createdName=zhaozhouchifen, createdTime=Thu Jul 23 01:42:01 CST 2020, time=2020-07-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=803689, encodeId=0a708036895a, content=学习了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=61b25401296, createdName=ms5000000617797190, createdTime=Tue Jul 21 14:50:33 CST 2020, time=2020-07-21, status=1, ipAttribution=)]
    2020-07-21 ms5000000617797190

    学习了!

    0

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