Evaluation of Root Canal Obturation Quality in Deciduous Molars with Different Obturation Materials: An In Vitro Micro-Computed Tomography Study.

Ayse I Orhan,Esra C Tatli,André Luiz Ferreira Costa

doi:10.1155/2021/6567161

Ayse I Orhan, Esra C Tatli + Show 1 more

Open Access

https://doi.org/10.1155/2021/6567161

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Abstract

Objective To evaluate the voids in root canal treatment of deciduous molar canals using three obturating materials and two obturation systems using micro-CT. Study Design. Thirty freshly extracted deciduous molars were used in this study. The specimens were instrumented using a ProTaper Universal rotary instrument and randomly assigned into six groups (n = 5). Mesiobuccal root canals were obturated using Ca(OH)2 and iodoform-Ca(OH)2 and ZOE cement. The materials were applied straight from the syringe up to the 2 mm coronal level of the apex. Subsequently, the Lentulo spiral and ultrasonic activation with endoactivator were used for obturation. All samples were scanned by micro-CT with 9.1 μm isotropic voxel resolution. The voids in cross-sectional images and 3D volumes of voids were measured. Differences among materials were statically evaluated (p < 0.05). Results All study groups showed voids. Ca(OH)2 and iodoform-Ca(OH)2 with ultrasonic activation produced fewer voids whereas the ZOE groups showed higher voids with statistical significance (p < 0.05). Conclusions Ca(OH)2 and iodoform-Ca(OH)2 with ultrasonic activation decrease void formation. Further studies should be done with other obturation techniques and materials for deciduous tooth root canal management.

Highlights

The root canal treatment in pediatric endodontic treatment is to constitute the integrity and healthy relationship between the teeth and surrounding tissues while waiting for the deciduous teeth that are replaced by the permanent dentition [1]
Eugenol, calcium hydroxide, and iodoform-based pastes are being used in conjunction with a variety of obturation techniques, including endodontic pressure, premixed syringes, Lentulo spirals, and endodontic pluggers/reamers [5]
The mean obturation percentage of the canal in 2D slices that were obturated with Ca(OH)2+ultrasonic activation and iodoform-Ca(OH)2+ultrasonic activation had a significantly better obturation percentage than the other groups (p < 0:05)

Summary

Introduction

The root canal treatment in pediatric endodontic treatment is to constitute the integrity and healthy relationship between the teeth and surrounding tissues while waiting for the deciduous teeth that are replaced by the permanent dentition [1]. The success in deciduous root canal treatment is being influenced by tight-sealed and 3D filling root canal to prevent residual bacteria from entering the periapical surrounding tissues with fewer voids as can be [2]. In molar teeth, collateral canals, apical anatomy complexity, and probability of harm to underneath permanent teeth. These obstacles have initiated new obturation materials that could solve instrumentation problems and increase root canal treatment success [3]. Various obturation materials and techniques have been suggested for deciduous root canal treatment [4]. Eugenol, calcium hydroxide, and iodoform-based pastes are being used in conjunction with a variety of obturation techniques, including endodontic pressure, premixed syringes, Lentulo spirals, and endodontic pluggers/reamers [5]

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