E-ISSN 2548-0839
European Endodontic Journal 3D Micro-CT Analysis of Void and Gap Formation in Curved Root Canals []
. 2017; 2(1): 22 | DOI: 10.5152/eej.2017.17004

3D Micro-CT Analysis of Void and Gap Formation in Curved Root Canals

Neslihan Şimşek1, Ali Keleş2, Fuat Ahmetoğlu3, Levent Akinci1, Kürşat Er4
1Department of Endodontics İnönü University School of Dentistry, Malatya, Turkey
2Department of Endodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
3Private Dental Clinic, Malatya, Turkey
4Department of Endodontics, Akdeniz University School of Dentistry, Antalya, Turkey

Objective: This study used microcomputed tomography (micro-CT) to compare the volumes of voids and gaps in curved root canals instrumented and filled using various techniques.
Methods: Twenty extracted mandibular first molars with two curved mesial root canals were used. Root canals were instrumented using a self-adjusting file (SAF) or Revo-S file system. For standardization, mesio- buccal canals were instrumented with SAF and mesiolingual canals were instrumented with Revo-S in each root. The canals were divided into four experimental groups (n=10 in each). The canals were then filled via cold lateral compaction (CLC) or a thermoplasticized injectable technique (TT) using gutta-percha and AH Plus root canal sealer. The roots were scanned with a micro-CT, and the volumes of the voids and gaps were calculated using three-dimensional (3D) micro-CT images. Data were analyzed using unpaired t- and Krus- kal-Wallis tests. A value of P < 0.05 was considered significant.
Results: None of the tested techniques provided void- or gap-free fillings. Nevertheless, the SAF showed more gap formation than the Revo-S, and TT showed higher gap formation in all experimental groups. These differences, however, were not statistically significant (p>0.05).
Conclusion: The SAF and Revo-S rotary file systems yielded comparable results. No statistically significant difference was found between the results of the various instrumentation and filling techniques.

Keywords: Micro-CT, quality of obturation, Revo-S, Self-adjusting file, void, and gap.

Neslihan Şimşek, Ali Keleş, Fuat Ahmetoğlu, Levent Akinci, Kürşat Er. 3D Micro-CT Analysis of Void and Gap Formation in Curved Root Canals. . 2017; 2(1): 22

Corresponding Author: Neslihan Şimşek, Türkiye

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