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

Abstract

ObjectiveTo analyze possible correlations among tubular dentine cement penetration, adhesiveness and apical leakage in fillings performed with gutta percha and an endodontic cement based on epoxy amine resin. Material and MethodsSixty similar, extracted human mandibular central incisors were irrigated, instrumented and filled following the same protocol. First, apical leakage was quantified by fluid filtration tests. Then, these same specimens were sectioned for analysis of tubular dentine cement penetration and the middle thirds were submitted to push-out tests to analyze the adhesiveness of the fillings. ResultsIn brief, the means and standard deviations with a confidence interval of 95% were as 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 the Pearson's test (P>0.05), and it was possible to prove that there was no correlation between (1) tubular dentine cement penetration and apical leakage (r2: 0.08276), (2) tubular dentine cement penetration and adhesiveness (r2: -0.2412) and (3) adhesiveness and apical leakage (r2: 0.1340). ConclusionAfter analysis of these data, it could be observed that there exists no correlation among the variables analyzed in this study.

Effect of ultrasonic and sonic activation of root canal sealers on the push‐out bond strength and interfacial adaptation to root canal dentine

“…) and bond strength (Machado et al . ). On the other hand, sonic activation of the sealer did not increase bond strength to dentine or the quantity, density and length of tags, and left voids inside the filling material.…”

Double dye technique and fluid filtration test to evaluate early sealing ability of an endodontic sealer

“…The sealer penetration into dentinal tubules is considered a reliable outcome of root filling materials, because in theory, it could improve the seal of the root filling [13,14]. Nevertheless, in literature, there is no agreement on the correlation between the sealer penetration into dentinal tubules and sealing ability [8,15,1,16] and a positive correlation has never been established [17][18][19][20][21].…”

Effect of ultrasonic activation on dentinal tubule penetration of calcium silicate‐based cements

“…Methods to evaluate root canal filling quality include root sections followed by stereomicroscope (Machado et al, ), scanning electron microscope (Chen et al, ) and more recently CLSM (Tuncer, ). The penetration of the cements was investigated using stereomicroscope or CLSM in the present study.…”

“…Methods to evaluate root canal filling quality include root sections followed by stereomicroscope (Machado et al, 2014), scanning electron microscope (Chen et al, 2017) and more recently CLSM (Tuncer, 2015).…”