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J Endod:EdgeTaper Platinum牙髓锉循环疲劳和扭转强度的研究

2019-04-28 lishiting MedSci原创

这篇体外研究的目的是在模拟体温下评估和比较EdgeTaper Platinum (ETP)和ProTaper Gold (PTG)锉循环疲劳强度和扭转强度的差异。

这篇体外研究的目的是在模拟体温下评估和比较EdgeTaper Platinum (ETP)和ProTaper Gold (PTG)锉循环疲劳强度和扭转强度的差异。

研究选取了ETP和PTG锉的#25 tip size。循环疲劳测试是在不锈钢人造根管内进行直至锉针折断。记录折断的时间。扭转强度的测试是将锉针尖端5 mm固定在丙烯酸树脂中,通过扭转测量仪组装。对持续的旋转运动施加一致的扭转强度直至锉针折断。记录锉针折断时的扭矩。2个实验均在35 ± 1°C的温度下完成。折断表面通过扫描电子显微镜观察。采用独立样本Student t检验对数据进行统计学分析,显著性水平设置为5%。

结果显示,ETP的循环疲劳强度显著优于PTG (P < .01)。然而,它却展现出较低的扭转强度(P < .05)。扫描电子显微镜显示,ETP和PTG均展现出典型的循环和扭转折断表征。

结论:ETP展现出优于PTG的循环疲劳强度,但在扭转强度的表现却没有丝毫改善。

原始出处:

Jamleh A, Alghaihab A, et al. Cyclic Fatigue and Torsional Failure of EdgeTaper Platinum Endodontic Files at Simulated Body Temperature. J Endod. 2019 Mar 28. pii: S0099-2399(19)30117-7. doi: 10.1016/j.joen.2019.02.008.

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1669764, encodeId=6bcb1669e6415, content=<a href='/topic/show?id=c7ca6e660ab' target=_blank style='color:#2F92EE;'>#牙髓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67660, encryptionId=c7ca6e660ab, topicName=牙髓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5eeb26562774, createdName=jxrzshh, createdTime=Tue Jul 02 18:21:00 CST 2019, time=2019-07-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1727974, encodeId=ac711e2797434, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sat May 18 08:21:00 CST 2019, time=2019-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365524, encodeId=a6ba36552460, content=谢谢分享学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Tue Apr 30 18:35:01 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260897, encodeId=ca47126089e0e, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70559, encryptionId=493ee0559a7, topicName=疲劳)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=674961, createdName=tamgche, createdTime=Tue Apr 30 11:21:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365436, encodeId=64dc3654360c, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Mon Apr 29 02:07:24 CST 2019, time=2019-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365425, encodeId=fb1636542511, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Sun Apr 28 21:18:56 CST 2019, time=2019-04-28, status=1, ipAttribution=)]
    2019-07-02 jxrzshh
  2. [GetPortalCommentsPageByObjectIdResponse(id=1669764, encodeId=6bcb1669e6415, content=<a href='/topic/show?id=c7ca6e660ab' target=_blank style='color:#2F92EE;'>#牙髓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67660, encryptionId=c7ca6e660ab, topicName=牙髓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5eeb26562774, createdName=jxrzshh, createdTime=Tue Jul 02 18:21:00 CST 2019, time=2019-07-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1727974, encodeId=ac711e2797434, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sat May 18 08:21:00 CST 2019, time=2019-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365524, encodeId=a6ba36552460, content=谢谢分享学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Tue Apr 30 18:35:01 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260897, encodeId=ca47126089e0e, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70559, encryptionId=493ee0559a7, topicName=疲劳)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=674961, createdName=tamgche, createdTime=Tue Apr 30 11:21:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365436, encodeId=64dc3654360c, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Mon Apr 29 02:07:24 CST 2019, time=2019-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365425, encodeId=fb1636542511, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Sun Apr 28 21:18:56 CST 2019, time=2019-04-28, status=1, ipAttribution=)]
    2019-05-18 feather89
  3. [GetPortalCommentsPageByObjectIdResponse(id=1669764, encodeId=6bcb1669e6415, content=<a href='/topic/show?id=c7ca6e660ab' target=_blank style='color:#2F92EE;'>#牙髓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67660, encryptionId=c7ca6e660ab, topicName=牙髓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5eeb26562774, createdName=jxrzshh, createdTime=Tue Jul 02 18:21:00 CST 2019, time=2019-07-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1727974, encodeId=ac711e2797434, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sat May 18 08:21:00 CST 2019, time=2019-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365524, encodeId=a6ba36552460, content=谢谢分享学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Tue Apr 30 18:35:01 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260897, encodeId=ca47126089e0e, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70559, encryptionId=493ee0559a7, topicName=疲劳)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=674961, createdName=tamgche, createdTime=Tue Apr 30 11:21:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365436, encodeId=64dc3654360c, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Mon Apr 29 02:07:24 CST 2019, time=2019-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365425, encodeId=fb1636542511, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Sun Apr 28 21:18:56 CST 2019, time=2019-04-28, status=1, ipAttribution=)]
    2019-04-30 清风拂面

    谢谢分享学习

    0

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    2019-04-30 tamgche
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    2019-04-29 183****7028

    学习

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1669764, encodeId=6bcb1669e6415, content=<a href='/topic/show?id=c7ca6e660ab' target=_blank style='color:#2F92EE;'>#牙髓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67660, encryptionId=c7ca6e660ab, topicName=牙髓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5eeb26562774, createdName=jxrzshh, createdTime=Tue Jul 02 18:21:00 CST 2019, time=2019-07-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1727974, encodeId=ac711e2797434, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Sat May 18 08:21:00 CST 2019, time=2019-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365524, encodeId=a6ba36552460, content=谢谢分享学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Tue Apr 30 18:35:01 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260897, encodeId=ca47126089e0e, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70559, encryptionId=493ee0559a7, topicName=疲劳)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=674961, createdName=tamgche, createdTime=Tue Apr 30 11:21:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365436, encodeId=64dc3654360c, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Mon Apr 29 02:07:24 CST 2019, time=2019-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365425, encodeId=fb1636542511, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Sun Apr 28 21:18:56 CST 2019, time=2019-04-28, status=1, ipAttribution=)]
    2019-04-28 1209e435m98(暂无昵称)

    学习了,谢谢分享

    0

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