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J Endod：颈部预处理对根部牙本质缺陷发生率的影响

2017-12-11 lishiting MedSci原创

颈部预处理根管预备
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这篇研究的目的为了评估根管预备后颈部预处理对牙根牙本质缺陷发生率的影响。

这篇研究的目的为了评估根管预备后颈部预处理对牙根牙本质缺陷发生率的影响。研究选择拔除的人上颌中切牙作为实验对象，并分为1个对照组和12个实验组(n = 15)。对照组牙齿不进行预备，其他组通过2 reciprocating single-file系统(Reciproc and WaveOne [WO])， 3 full-sequence rotary系统(ProTaper Universal， ProTaper Next [PTN]和ProFile)和由振动系统驱动的K-files在实施颈部预处理与否的情况下进行根管预备。随后，牙根在距离根尖4， 8和12 mm处水平片切，1%亚甲蓝染色并通过体视显微镜在25倍镜下观察。检查切片并记录是否存在缺陷(断裂， 部分裂缝和裂纹线)。数据通过Kolmogorov-Smirnov和Levene检验进行分析，随后进行Tukey post hoc检验，显著性水平设置为P < .05。结果显示，对照组未见任何牙根牙本质缺陷。使用WO发生缺陷的数量明显高于K-files， ProFile， 和PTN (P < .05)，但与Reciproc或

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1826411, encodeId=b892182641158, content=<a href='/topic/show?id=e5283e89970' target=_blank style='color:#2F92EE;'>#发生率#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37899, encryptionId=e5283e89970, topicName=发生率)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Sat Apr 28 16:22:00 CST 2018, time=2018-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441881, encodeId=90a214418810b, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Dec 13 10:22:00 CST 2017, time=2017-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1589741, encodeId=1ffd1589e4165, content=<a href='/topic/show?id=124d10065220' target=_blank style='color:#2F92EE;'>#颈部#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100652, encryptionId=124d10065220, topicName=颈部)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c46a17776631, createdName=木头人519, createdTime=Wed Dec 13 10:22:00 CST 2017, time=2017-12-13, status=1, ipAttribution=)]
    2018-04-28 一叶知秋

    #发生率#

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=1826411, encodeId=b892182641158, content=<a href='/topic/show?id=e5283e89970' target=_blank style='color:#2F92EE;'>#发生率#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37899, encryptionId=e5283e89970, topicName=发生率)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Sat Apr 28 16:22:00 CST 2018, time=2018-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441881, encodeId=90a214418810b, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Dec 13 10:22:00 CST 2017, time=2017-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1589741, encodeId=1ffd1589e4165, content=<a href='/topic/show?id=124d10065220' target=_blank style='color:#2F92EE;'>#颈部#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100652, encryptionId=124d10065220, topicName=颈部)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c46a17776631, createdName=木头人519, createdTime=Wed Dec 13 10:22:00 CST 2017, time=2017-12-13, status=1, ipAttribution=)]
    2017-12-13 ms8538335253054589

    #牙本质#

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1826411, encodeId=b892182641158, content=<a href='/topic/show?id=e5283e89970' target=_blank style='color:#2F92EE;'>#发生率#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37899, encryptionId=e5283e89970, topicName=发生率)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Sat Apr 28 16:22:00 CST 2018, time=2018-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441881, encodeId=90a214418810b, content=<a href='/topic/show?id=67526e55924' target=_blank style='color:#2F92EE;'>#牙本质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67559, encryptionId=67526e55924, topicName=牙本质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=37364903098, createdName=ms8538335253054589, createdTime=Wed Dec 13 10:22:00 CST 2017, time=2017-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1589741, encodeId=1ffd1589e4165, content=<a href='/topic/show?id=124d10065220' target=_blank style='color:#2F92EE;'>#颈部#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100652, encryptionId=124d10065220, topicName=颈部)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c46a17776631, createdName=木头人519, createdTime=Wed Dec 13 10:22:00 CST 2017, time=2017-12-13, status=1, ipAttribution=)]
    2017-12-13 木头人519

    #颈部#

    0