J Endod:不同根管入路角度对Reciproc和Reciproc Blue器械循环疲劳强度的影响

2018-12-06 lishiting MedSci原创

这篇研究的目的是为了比较Reciproc (REC; VDW, Munich, Germany)和Reciproc blue (REB, VDW)在不同根管入路角度时的循环疲劳。

这篇研究的目的是为了比较Reciproc (REC; VDW, Munich, Germany)和Reciproc blue (REB, VDW)在不同根管入路角度时的循环疲劳。

研究测试120根全新的REC R25和REB R25 (REB)锉的循环疲劳强度。器械按进入测试人造根管的角度不同随机分为8组(n = 15):组1, 2, 3和4包含所测试的REC角度分别为0°, 10°, 20°和30°,组5, 6, 7和8包含所测试的REB角度分别为0°, 10°, 20°和30°。使用专门的测试设备记录器械在60°弯曲及5-mm半径的人造不锈钢根管内折断的时间检测循环疲劳强度。数据通过2-way analysis of variance和post hoc Tukey检验进行统计学评估,显著性水平设置为5%。碎片的折断表面通过扫描电镜观察分析。

结果显示,REC的循环疲劳在每个插入的角度中均减少,而REB的循环疲劳强度则在20°或30°的入路倾斜下减少。当入路角度为0°和10°时,REB的循环疲劳强度明显高于REC (P < .05),而在20°时,2者间没有显著性差异。30°时,REC的循环疲劳强度明显高于REB (P < .05)。

结论:当根管入路为直线入路或一点角度时,REB锉的循环疲劳强度要明显高于REC。

原始出处:

Pedullà E, La Rosa GRM, et al. Influence of Different Angles of File Access on Cyclic Fatigue Resistance of Reciproc and Reciproc Blue Instruments. J Endod. 2018 Dec;44(12):1849-1855. doi: 10.1016/j.joen.2018.08.012.

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    2019-05-20 linlin2312
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    2018-12-08 tamgche
  5. [GetPortalCommentsPageByObjectIdResponse(id=1923720, encodeId=d6ab1923e2000, content=<a href='/topic/show?id=093b353eed' target=_blank style='color:#2F92EE;'>#blue#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3537, encryptionId=093b353eed, topicName=blue)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eq2AGzrugK9ZUjU3eJxzM901ophWib0xJDrSicy49ibWl3zB5pbDto7eoR6tnzwOiaKdbq1a8PcbYFFrw/132, createdBy=6ff22500098, createdName=ms4964546379600229, createdTime=Tue May 21 02:09:00 CST 2019, time=2019-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1976983, encodeId=868f19e698363, content=<a href='/topic/show?id=b9f11560065' target=_blank style='color:#2F92EE;'>#ROC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15600, encryptionId=b9f11560065, topicName=ROC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d590125, createdName=linlin2312, createdTime=Mon May 20 22:09:00 CST 2019, time=2019-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079723, encodeId=9a2520e972376, content=<a href='/topic/show?id=6004152382e' target=_blank style='color:#2F92EE;'>#Reciproc#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15238, encryptionId=6004152382e, topicName=Reciproc)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cd0d217, createdName=huiwelcome, createdTime=Wed May 08 15:09:00 CST 2019, time=2019-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260891, encodeId=f4db126089179, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1522928, encodeId=c3c31522928c8, content=<a href='/topic/show?id=c72462241ff' target=_blank style='color:#2F92EE;'>#根管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1602093, encodeId=d8ac16020939c, content=<a href='/topic/show?id=2f801469e57' target=_blank style='color:#2F92EE;'>#PRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14697, encryptionId=2f801469e57, topicName=PRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1630307, encodeId=93e3163030e49, content=<a href='/topic/show?id=bf3de05617b' target=_blank style='color:#2F92EE;'>#疲劳强度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70561, encryptionId=bf3de05617b, topicName=疲劳强度)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=015821484104, createdName=budeshao, createdTime=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1923720, encodeId=d6ab1923e2000, content=<a href='/topic/show?id=093b353eed' target=_blank style='color:#2F92EE;'>#blue#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3537, encryptionId=093b353eed, topicName=blue)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eq2AGzrugK9ZUjU3eJxzM901ophWib0xJDrSicy49ibWl3zB5pbDto7eoR6tnzwOiaKdbq1a8PcbYFFrw/132, createdBy=6ff22500098, createdName=ms4964546379600229, createdTime=Tue May 21 02:09:00 CST 2019, time=2019-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1976983, encodeId=868f19e698363, content=<a href='/topic/show?id=b9f11560065' target=_blank style='color:#2F92EE;'>#ROC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15600, encryptionId=b9f11560065, topicName=ROC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d590125, createdName=linlin2312, createdTime=Mon May 20 22:09:00 CST 2019, time=2019-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079723, encodeId=9a2520e972376, content=<a href='/topic/show?id=6004152382e' target=_blank style='color:#2F92EE;'>#Reciproc#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15238, encryptionId=6004152382e, topicName=Reciproc)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cd0d217, createdName=huiwelcome, createdTime=Wed May 08 15:09:00 CST 2019, time=2019-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260891, encodeId=f4db126089179, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1522928, encodeId=c3c31522928c8, content=<a href='/topic/show?id=c72462241ff' target=_blank style='color:#2F92EE;'>#根管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1602093, encodeId=d8ac16020939c, content=<a href='/topic/show?id=2f801469e57' target=_blank style='color:#2F92EE;'>#PRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14697, encryptionId=2f801469e57, topicName=PRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1630307, encodeId=93e3163030e49, content=<a href='/topic/show?id=bf3de05617b' target=_blank style='color:#2F92EE;'>#疲劳强度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70561, encryptionId=bf3de05617b, topicName=疲劳强度)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=015821484104, createdName=budeshao, createdTime=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=)]
    2018-12-08 hb2008ye
  7. [GetPortalCommentsPageByObjectIdResponse(id=1923720, encodeId=d6ab1923e2000, content=<a href='/topic/show?id=093b353eed' target=_blank style='color:#2F92EE;'>#blue#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3537, encryptionId=093b353eed, topicName=blue)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eq2AGzrugK9ZUjU3eJxzM901ophWib0xJDrSicy49ibWl3zB5pbDto7eoR6tnzwOiaKdbq1a8PcbYFFrw/132, createdBy=6ff22500098, createdName=ms4964546379600229, createdTime=Tue May 21 02:09:00 CST 2019, time=2019-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1976983, encodeId=868f19e698363, content=<a href='/topic/show?id=b9f11560065' target=_blank style='color:#2F92EE;'>#ROC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15600, encryptionId=b9f11560065, topicName=ROC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d590125, createdName=linlin2312, createdTime=Mon May 20 22:09:00 CST 2019, time=2019-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079723, encodeId=9a2520e972376, content=<a href='/topic/show?id=6004152382e' target=_blank style='color:#2F92EE;'>#Reciproc#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15238, encryptionId=6004152382e, topicName=Reciproc)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cd0d217, createdName=huiwelcome, createdTime=Wed May 08 15:09:00 CST 2019, time=2019-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1260891, encodeId=f4db126089179, content=<a href='/topic/show?id=493ee0559a7' target=_blank style='color:#2F92EE;'>#疲劳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1522928, encodeId=c3c31522928c8, content=<a href='/topic/show?id=c72462241ff' target=_blank style='color:#2F92EE;'>#根管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1602093, encodeId=d8ac16020939c, content=<a href='/topic/show?id=2f801469e57' target=_blank style='color:#2F92EE;'>#PRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14697, encryptionId=2f801469e57, topicName=PRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1630307, encodeId=93e3163030e49, content=<a href='/topic/show?id=bf3de05617b' target=_blank style='color:#2F92EE;'>#疲劳强度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70561, encryptionId=bf3de05617b, topicName=疲劳强度)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=015821484104, createdName=budeshao, createdTime=Sat Dec 08 12:09:00 CST 2018, time=2018-12-08, status=1, ipAttribution=)]

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