Lack of correlation between tubular dentine cement penetration, adhesiveness and leakage in roots filled with gutta percha and an endodontic cement based on epoxy amine resin

Objective

To analyze possible correlations among tubular dentine cement penetration,adhesiveness and apical leakage in fillings performed with gutta percha and anendodontic cement based on epoxy amine resin.

Material and Methods

Sixty similar, extracted human mandibular central incisors were irrigated,instrumented and filled following the same protocol. First, apical leakage wasquantified by fluid filtration tests. Then, these same specimens were sectionedfor analysis of tubular dentine cement penetration and the middle thirds weresubmitted to push-out tests to analyze the adhesiveness of the fillings.

Results

In brief, the means and standard deviations with a confidence interval of 95% wereas follows: tubular dentine cement penetration (8.875±4.540), adhesiveness(4.441±2.683) and apical leakage (0.318±0.215). The data were confronted using thePearson''s test (P>0.05), and it was possible to prove that there was nocorrelation between (1) tubular dentine cement penetration and apical leakage(r²: 0.08276), (2) tubular dentine cement penetration andadhesiveness (r²: -0.2412) and (3) adhesiveness and apical leakage(r²: 0.1340).

Conclusion

After analysis of these data, it could be observed that there exists nocorrelation among the variables analyzed in this study.