Micro‐computed tomography analysis of post space preparation in root canals filled with carrier‐based thermoplasticized gutta‐percha

Schroeder, André; Ford, Nancy L.; Coil, Jeffrey M.

doi:10.1111/iej.12618

Cited by 8 publications

(6 citation statements)

References 29 publications

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“…A two-dimensional evaluation of split specimens also demonstrated similar amounts of filling remnants after retreatment of Thermafil, GuttaCore and thermoplasticized gutta-percha (Nevares et al 2015). Micro-CT imaging allows a quantitative assessment of dentine removal during retreatment procedures (R€ odig et al 2012, 2014) or post-space preparation (Schroeder et al 2017). In this study, 2.7-3.2 mm 3 of dentine was removed during retreatment irrespective of the filling technique.…”

Section: Discussionmentioning

confidence: 65%

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Efficacy of the ProTaper retreatment system in removing Thermafil, GuttaCore or vertically compacted gutta‐percha from curved root canals assessed by micro‐CT

et al. 2018

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Section: Discussionmentioning

confidence: 65%

“…, ) or post‐space preparation (Schroeder et al . ). In this study, 2.7–3.2 mm 3 of dentine was removed during retreatment irrespective of the filling technique.…”

Section: Discussionmentioning

confidence: 97%

Efficacy of the ProTaper retreatment system in removing Thermafil, GuttaCore or vertically compacted gutta‐percha from curved root canals assessed by micro‐CT

et al. 2018

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“…Indeed, the GuttaCore carrier was designed to facilitate removal during retreatment and/or postspace preparation by fast, simply, and safe trephining through the core. 27 28 29…”

Section: Discussionmentioning

confidence: 99%

Microscopic and Chemical Assessments of the Filling Ability in Oval-Shaped Root Canals Using Two Different Carrier-Based Filling Techniques

et al. 2019

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Objectives The aim of this study was to assess the filling ability in oval-shaped canals using two different carrier-based filling techniques. Materials and Methods Twenty-four human mandibular premolars with one oval canal were selected. Canals were shaped using WaveOne Gold Primary and ProGlider. Samples were divided into two groups and filled as follows: Thermafil and GuttaCore. The proportions of gutta-percha-filled areas (GPFAs), sealer-filled areas (SFAs), and void areas (VA), at 2 and 5 mm, were analyzed using optical numeric microscope, scanning electron microscope, and energy-dispersive X-ray. Statistical Analysis Data were compared by Kruskal–Wallis one-way analysis of variance on ranks, with statistical significance set at α = 0.05. Results At 2 and 5 mm distances from the apex, this study discloses no statistically different filling ability for the two techniques. Concerning each sample treated using both filling systems, the presence of tags was visualized. At working length (WL)-5, and WL-2, the maximum tag penetration depth for the GuttaCore group into the dentinal tubules was, respectively, 96 μm and 48 μm, whereas the values in the thermafil group were 109 μm, and 55 μm, respectively. Conclusions Our results clearly show that Thermafil and GuttaCore can fill oval-shaped canals in appropriate way. Furthermore, we can state that the GuttaCore obturator allows to preserve the same filling ability than Thermafil obturator, in view of the fact that there was no difference, in terms of GPFA, SFA, and VA between the two different carrier-based obturation techniques.

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“…Several techniques and materials have been developed over the last decades aiming to achieve the optimal properties required for the root canal filling process. Hence, many studies have compared the performance of obturation techniques in different aspects; however, they have yielded disparate results [2–4]. To date, no filling material or technique has been considered ideal, and the occurrence of failure has been observed when trying to obtain a void-free homogeneous sealing of root canals [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental Resin-Based Monoblock Endodontic Obturation System

Pereira

Piva

Cuevas‐Suárez

et al. 2019

BioMed Research International

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Objective The aim of the present study was to characterize a novel resin-based monoblock endodontic obturation system consisting of a polymeric cone and a resin-based endodontic sealer. Methods The preliminary tests performed for the experimental cone were as follows: cohesive strength, dimensional stability, standardization of the diameter and taper, calcium ion release, and radiopacity, for the characterization of the experimental sealer, film thickness and flow tests were performed. Tests were performed according to the American National Standards Institute/American Dental Association (ANSI/ADA) Standards Nos. 57 and 78. The experimental cone was compared to gutta-percha, whereas the experimental sealer was compared to AH Plus. Data were analyzed by Student's t-test (α = 0.05). Results The experimental cone had superior values for cohesive strength and dimensional stability compared to gutta-percha. Regarding calcium ion release, the experimental system continued to release calcium ions after 30 days. Film thickness was similar for both endodontic sealers; conversely, the experimental resin-based sealer achieved higher values for flow compared to AH Plus. Conclusion The experimental resin-based monoblock obturation system fully met the requirements of the ANSI/ADA Standard No. 78 and the ANSI/ADA Standard No. 57, except for radiopacity. Considering this, further studies are still needed to evaluate other radiopacifiers and the effect of their incorporation on the physicochemical properties of this novel resin-based monoblock endodontic obturation system.

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Micro‐computed tomography analysis of post space preparation in root canals filled with carrier‐based thermoplasticized gutta‐percha

Abstract: The differences between the Thermafil, GuttaCore and gutta-percha groups in the number of samples with post space deviation and in linear deviation of post space preparation were associated with the presence or absence of a carrier as well as the different carrier materials.

Cited by 8 publications

References 29 publications

Efficacy of the ProTaper retreatment system in removing Thermafil, GuttaCore or vertically compacted gutta‐percha from curved root canals assessed by micro‐CT

Efficacy of the ProTaper retreatment system in removing Thermafil, GuttaCore or vertically compacted gutta‐percha from curved root canals assessed by micro‐CT

Microscopic and Chemical Assessments of the Filling Ability in Oval-Shaped Root Canals Using Two Different Carrier-Based Filling Techniques

Experimental Resin-Based Monoblock Endodontic Obturation System

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