Clinical Evaluation Of E-Q System And Laboratory Study

In recent years a number of clinical placement techniques involving warm gutta-percha have been developed. E-Q system is a root canal rilling set, including two techniques. Their working principles are sold-core carry insertion and thennomechanical compaction. They support quick, safe and convenient replacement the root canal except some limitations, but to date few experiments have compared the techniques at home.The objective of this study was to compare E-Q system and traditional lateral condensation technique in vivo and in vitro.An evaluation of E-Q system endodontic obturation technique clinicallyAim: To assess the obturation quality and the short term of clinical therapeutic efficiency of E-Q system endodontic obturation technique.Method: 75 patients with pulpitis or periodontitis were divided into three identical groups of 25 cases. Then the time of obturation, the obturation quality and the short stage of clinical therapeutic efficiency of E-Q system were assessed by radiography and clinical observation.Result: From clinical evaluation, Group A had the lest time of obturation (P<0.05 ) . For radiographic quality of obturation and clinical therapeutic efficiency, there was no statistically significant difference among three groups.Conclusion: E-Q system is a rapid, simple method for root canal therapy, and the short term of clinical therapeutic efficiency of E-Q system compare favourably with that of lateralcondensation.An evaluation of E-Q system endodontic obturation technique in vitroAim: To evaluate the obturation quality and scalability of E-Q system endodontic obturation technique in vitro.Method: A total of 55 freshly extract 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.Result: In vitro study, Group A had the most apical extrusion of sealer and scalability, and Group C had the least 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), and there was no statistically significant difference among three groups from the bucco-lingual views.Conclusion: Under laboratory conditions E-Q system had better scalability but poor radiographic quality than lateral condensation.