Evaluation of the sealing ability of different root canal sealers: a combined SEM and micro-CT study
AUTOR(ES)
HUANG, Yan, ORHAN, Kaan, CELIKTEN, Berkan, ORHAN, Ayşe Işıl, TUFENKCI, Pelin, SEVIMAY, Semra
FONTE
J. Appl. Oral Sci.
DATA DE PUBLICAÇÃO
15/01/2018
RESUMO
Abstract Objective: The purpose of this study was to analyze the ability of multiple compounds to seal the dental tubules using scanning electron microscopy (SEM) and micro-computed tomogra-phy (micro-CT). Material and Methods: Twenty-four single-root human mandibular premolars were selected and instrumented with nickel-titanium rotary file and the final file size was #40/06. They were then randomly allocated into 2 groups, and all samples were filled with single cone gutta-percha (#40/06) and one of the tested sealers (AH Plus and EndoSequence BC sealers). All specimens were scanned using micro-CT and then three from each group were randomly selected for SEM analysis. Results: According to SEM, both root canal sealers showed sufficient adaptation to dentin along the whole length of the root canal, though the coronal sections presented superior sealing than the apical sections. Micro porosity analyses revealed that the volume of closed pores and the surface of closed pores had the largest values in the coronal sections, followed by the middle and the apical sections for both sealants (p<0.05). However, no significant difference was observed for those two parameters between AH Plus and EndoSequence BC sealers in any of the three sections (p>0.05), whereas they were larger in the apical section when the AH Plus sealer was used. Conclusions: By using the single cone technique, neither EndoSequence or AH Plus pro-vides a porosity-free root canal filling. The EndoSequence BC sealer may have similar sealing abilities regarding the whole root canal as the AH Plus sealer. A better sealing effect could be obtained in the coronal and middle sections of a root canal than the apical part by using the tested sealers.
Documentos Relacionados
- Filling Ability and Flow of Root Canal Sealers: A Micro-Computed Tomographic Study
- Micro-CT Evaluation of Root and Canal Morphology of Mandibular First Premolars with Radicular Grooves
- On the Causality Between Dentinal Defects and Root Canal Preparation: A Micro-CT Assessment
- Micro-CT Evaluation of Non-instrumented Canal Areas with Different Enlargements Performed by NiTi Systems
- Micro-CT Evaluation of Root Filling Removal after Three Stages of Retreatment Procedure