title: Evaluation of root canal sealer filling quality using a single-cone technique in oval shaped canals: An In vitro Micro-CT study.
abstract: The aim of this study was to evaluate and compare the presence of voids in oval root canals filled with different root canal sealers (EndoSequence BC Sealer, Smartpaste bio, ActiV GP) and to compare those with root canals filled with AH Plus sealer using micro-CT. In total, 40 freshly extracted human single-root maxillary premolars were used. Specimens instrumented with the EndoSequence NiTi rotary instrument were assigned randomly into four groups. In each group, root canals were filled with single-cone gutta-percha and one of the tested sealers. Each specimen was then scanned using micro-CT at a voxel resolution of 13.47 μm. Proportions of sections with voids in cross-sectional images and void volumes for each sealer were calculated in the apical, middle, and coronal thirds. Differences according to root canal sealers were evaluated statistically using the Kruskal-Wallis test and the Mann-Whitney U-test at a significance level of 5%. The analysis showed a decrease in void formation in the apical third, with a significant difference between the apical and coronal thirds among bioceramic sealers, ActiV GP, and AH Plus (p < 0.05) but no significant difference between the apical and middle thirds or between the middle and coronal thirds was found for the sealers tested (p > 0.05). All root canal sealers tested resulted in voids. The bioceramic sealers (EndoSequence BC Sealer, Smartpaste bio) produced similar voids which had the fewest in the apical third of root canals among the sealers tested which can be related due to root canal anatomy variations.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Ankara University, Ankara, Turkey.
authors.forename: Berkan
authors.initials: B
authors.lastname: Celikten
authors.affiliation: Ministry of Health, Ataturk Oral and Dental Health Care Hospital, Ankara, Turkey.
authors.forename: Ceren Feriha
authors.initials: CF
authors.lastname: Uzuntas
authors.affiliation: Division of Pediatric Dentistry, Ministry of Health, 75th Year Ankara Oral and Dental Health Centre, Ankara, Turkey.
authors.forename: Ayse Isıl
authors.initials: AI
authors.lastname: Orhan
authors.affiliation: Department of DentoMaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey.
authors.forename: Kaan
authors.initials: K
authors.lastname: Orhan
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Ankara University, Ankara, Turkey.
authors.forename: Pelin
authors.initials: P
authors.lastname: Tufenkci
authors.affiliation: Ministry of Health, Bolu Oral and Dental Health Care Hospital, Bolu, Turkey.
authors.forename: Sebnem
authors.initials: S
authors.lastname: Kursun
authors.affiliation: Ministry of Health, Public Hospitals Agency of Turkey, Ankara, Turkey.
authors.forename: Kemal Özgür
authors.initials: KÖ
authors.lastname: Demiralp
mesh_terms: D001641:Bicuspid / Q000648:ultrastructure; D003786:Dental Pulp Cavity / Q000648:ultrastructure*; D003793:Dental Restoration, Permanent / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional; D012387:Root Canal Filling Materials / Q000494:pharmacology*; D016896:Treatment Outcome; D055114:X-Ray Microtomography
chemical_list: D012387:Root Canal Filling Materials
keywords: 3-D reconstruction; dentistry; image analysis; imaging; tomography