Sealer influence on radiopacity of single cone root canal fillings

Antonio Batista, Murilo Martins Borges, André Luiz Da Costa Michelotto, Bruno Cavalini Cavenago

Objective: The aim of this study was to evaluate the influence on radiopacity of AH Plus and Endofill sealers used in single cone obturation of simulated canals. Methods: Twenty resin blocks with simulated curved root canals were prepared until F3 ProTaper rotary instrument. After the final irrigation, the canals were dried with paper points and a F3 gutta-percha point was inserted into the canal, and then a digital radiography was taken for each sample. Two experimental groups (n = 10) were randomly distributed according to the sealer. Endofill and AH Plus were the sealers associated to the gutta-percha for canal fillings. After the setting of sealers, new digital images were performed in the same manner as preoperative radiographics. Radiographic images of pre and post sealer association with gutta-percha were overlaid and analyzed to register the pixels number of the images. Statistical analysis was performed using the Student’s t-test and Wilcoxon Signed-Rank test; the significance was set at 5%. Results: Both groups showed similar radiopacity of gutta-percha (p > 0.05). However the addition of sealer significantly increased (p < 0.05) the radiopacity of radiographic images. The radiopacity was increased in 68.10 % with AH Plus sealer and 46.02% with Endofill sealer, with statistically significant difference between the sealers. Conclusions: The sealer addition significantly increased the radiopacity in obturations with single cone technique. The AH Plus was more radiopaque than Endofill sealer.

Keywords: Endodontics. Root canal obturation. Root canal filling materials. Gutta-percha. Physical properties.

How to cite: Batista A, Borges MM, Michelotto ALC, Cavenago BC. Sealer influence on radiopacity of single cone root canal fillings. Dental Press Endod. 2017 May-Aug;7(2):26-31. DOI: https://doi.org/10.14436/2358-2545.7.2.026-031.oar

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