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ID:38243027
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页数:4页
时间:2019-05-31
《2种常用粘接剂在修复体粘固后可以使用电动牙刷的时机》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、实用口腔医学杂志(JPractStomato1)2016Sep,32(5)·627·2种常用粘接剂在修复体粘固后可以使用电动牙刷的时机薛昌越吴文慧【摘要】目的:探讨2种常用粘按剂在修复体粘固后可以使用电动牙刷的时机。方法:将60颗离体前磨牙用管状模具包埋在自凝树脂中,高速手机去除颊面釉质,用水砂纸流水下磨平牙本质粘接面。将30个样本用聚羧酸锌水门汀粘接30个直径4him、高2mm的钴铬合金试件,剩余样本用PanaviaF粘接30个直径4mln、高2mm的氧化锆试件,分别分为5组(n=6)。第1~4组分别在粘固后即刻、12、24、48h后使用
2、电动牙刷刷洗30s,第5组为对照组。刷洗后行剪切试验,体视显微镜观察离断面类型。结果:聚羧酸锌水门汀:第1、2、3组与剪切强度均小于对照组(P<0.05),第4组与对照组比较P>0.05。PanaviaF:第1、2组剪切强度均小于对照组(P<0.05),第3、4组与对照组比较P>0.05。离断面类型以内聚破坏为主。结论:使用聚羧酸锌水门汀和PanaviaF粘固之后可使用电动牙刷的时机分别为48h和24h。【关键词】电动牙刷;树脂粘接剂;聚羧酸锌水门汀;剪切强度Thetimeintervalofusingelectrictoothbrusha
3、ftertheadhesionoftwocommonlutingcementsXUEChangyue,Wenhui.063000Tangshan,DepartmentofProsthodontics,CollegeofStomatology,NorthChinaUniversityofScienceandTechnology,China【Abstract】Objective:Toexplorethetimeintervalofusingelectrictoothbrushaftertheadhesionofzincpolycarboxyla
4、tecement(ZPC)andPanaviaF(PF)respectively.Methods:Thefacialsurfacesof60premolarswereexposedandembeddedinself-curingresinwithcustommadecylinder—shapedmolds.Thenthefacialsurfaceswerecutwithadiamondsawandpolishedwithwaterproofpo—lishingpaperstocreatestandardizeddentinsurfaces.
5、30co—crallytest—piecesand30zirconiaceramictest—pieces(4.0mnlindiame—terand2.0mminheight)wereadheredon30dentinsurfacesrespectivelywithZPCandPF.Thesamplesofeachkindweredividedinto5groups(n=6)andbrushedwithanelectronictoothbrushfor30secondsimmedietly(group1),12h(group2),24h(g
6、roup3)and48h(group4)afteradhesion,respectively.Thesamplesingroup5withoutbrushwerethecontrols.Shearbondstrengthofthesampleswasmeasuredandthefracturepatternswereobservedundersteriomicroscope.Results:IntheZPCadheredsamplesthebondstrengthofgroup1,2,3waslowerthanthatofgroup4and
7、5(P<0.05),group4vsgroup5,P>0.05.InthePFadheredsimplesthebondstrenthofgroup1and2waslowerthanthatofgroup3,4and5(P<0.05),group3or4group5,P>0.05.Thefracturepatternsweremostlycementcohesivefailure.Conclusion:ThetimeintervalsofusingelectrictoothbrushaftertheadhesionofZPCandPFare
8、48hand24hrespectively【Keywords】Electrictoothbrush;Resincement;Zincpolycarboxylatecement;S
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