Assessment of Marginal Adaptation and Sealing Ability of Root Canal Sealers: An in vitro Study

Abstract

Aim: This study aims to compare the marginal adaptation and sealing ability [mineral trioxide aggregate (MTA)-Fillapex, AH Plus, Endofill sealers] of root canal sealers. Materials and methods:In the present study, the inclusion criteria include 45 single-rooted extracted mandibular premolar teeth, with single canal and complete root formation. The sectioning of the samples was done at the cementoenamel junction using a low-speed diamond disc.Step-back technique was used to prepare root canals manually. The MTA-Fillapex, AH Plus, and Endofill sealers were the three experimental sealer groups to which 45 teeth were distributed. Under scanning electron microscope (SEM), marginal gap at sealer and root dentin interface were examined at coronal and apical halves of root canal.Results: Among the three maximum marginal adaptations were seen with AH Plus sealer (4.10 ± 0.10) which is followed by Endofill sealer (1.44 ± 0.18) and MTA-Fillapex sealer (0.80 ± 0.22). Between the coronal and apical marginal adaptation, significant statistical difference (p = 0. Kannur, Kerala, India, e-mail: vimalremy@gmail.com there was a statistically significant difference (p < 0.05) found between the above two groups at coronal and apical third. Conclusion:The present study proves that AH Plus sealer has a better marginal adaptation when compared with other sealers used.Clinical significance: For sealing space of crown wall and main cone in root canal treatment, sealers play an important role. The other advantages of sealers are that they are used to fill voids and irregularities in root channel, secondary, lateral channels, and space between applied gutta-percha cones and also act as tripper during filling.

Physico-Chemical Properties of Calcium-Silicate vs. Resin Based Sealers—A Systematic Review and Meta-Analysis of Laboratory-Based Studies

“…The adaptation to root canal walls was evaluated using the marginal adaptation, interfacial gaps and void volume in cubic millimetres with mean percentages. The marginal adaptation [ 31 , 48 ] and interfacial gaps [ 39 , 53 , 55 ] were assessed using the Scanning Electron Microscope whereas void volume [ 30 , 41 , 42 , 47 , 51 ] was assessed by Micro-computed Tomography. Kim et al [ 30 ] stated that the voids in the root canal obturation might weaken the filling quality and serve as a hub for microbes by transporting contaminants along the root canal system.…”

“…Various studies reported that RBS could penetrate deep into the dentinal tubules due to the flowability, long setting time, and provide long-term dimensional stability [ 48 , 53 , 57 , 58 ]. Germain et al [ 41 ] suggested that EndoSequence (CSBs) reduced film thickness, improved flow and hardening on contact with moisture within the root dentine.…”

Comparison of bioceramic and epoxy resin sealers in terms of marginal adaptation and tubular penetration depth with different obturation techniques in premolar teeth: A scanning electron microscope and confocal laser scanning microscopy study

“…[ 13 ] reported that marginal adaptation was less in all groups based on SEM images in the apical part compared to the middle and coronal parts. Remy et al ,[ 14 ] by evaluation the AH plus sealer, also reported that the marginal adaptation of the apical region was significantly lower than the coronal region. In the present study, it was observed that the depth of tubular penetration was not affected by the filling method; however, it was significantly higher in the use of bioceramic sealer than epoxy resin ( P < 0.001).…”

Apical microleakage assessment of teeth obturated with single-cone gutta-percha using two calcium silicate sealers and a resin sealer: an in vitro study

“…Endodontic sealers have a key role in sealing the root canal system, entombing the residual bacteria, and filling the irregularities in the prepared canal system [13]. The adhesion between the root canal dentin and GP is important in preventing microleakage, which can be attained through the use of different sealers [14]. Therefore, sealers have a great effect on the sealing of the canal space and the success of treatment.…”