Evaluation of the sealing ability of different root canal sealers: a combined SEM and micro-CT study
J. appl. oral sci
; 26: e20160584, 2018. tab, graf
Artigo
em Inglês
| LILACS, BBO - Odontologia
| ID: biblio-893731
Biblioteca responsável:
BR1.1
ABSTRACT
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 andMethods:
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.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
BBO - Odontologia
/
LILACS
Assunto principal:
Óxidos
/
Materiais Restauradores do Canal Radicular
/
Obturação do Canal Radicular
/
Raiz Dentária
/
Fosfatos de Cálcio
/
Silicatos
/
Dentina
/
Resinas Epóxi
Tipo de estudo:
Ensaio clínico controlado
/
Estudo de avaliação
Limite:
Humanos
Idioma:
Inglês
Revista:
J. appl. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2018
Tipo de documento:
Artigo
País de afiliação:
China
Instituição/País de afiliação:
Sichuan University/CN