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《Chinese Journal of Conservative Dentistry》 2004-04
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Evaluation of E-Q system endodontic obturation technique in vitro

ZHANG Wei, PENG Bin, CHEN Zhi (School of Stomatology,Wuhan University,Wuhan 430079,China)  
AIM:To evaluate the quality of obturation and sealability of E-Q system endodontic obturation technique in vitro .METHODS:A total of 55 freshly extracted human mature single root teeth were divided into three identical groups of 17 teeth.Then the effect and sealability of lateral condensation of gutter-percha or E-Q system were assessed by radiography and microleakage.RESULTS: In vitro study,apical extrusion of sealer was most in group A,less in group B,and least in group C among three groups( P 0.05).For radiographic quality of obturation,Group C achieved significantly better score than Group A and B from the mesio-distal views( P 0.05).There was no statistically significant difference among three groups from the bucco-lingual views.CONCLUSION:Under laboratory conditions E-Q system had better sealability but poor radiographic quality than lateral condensation.
【CateGory Index】: R781.05
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