Micro-CT determination of the porosity of two tricalcium silicate sealers applied using three obturation techniques.
J Oral Sci
; 66(3): 163-168, 2024.
Article
em En
| MEDLINE
| ID: mdl-39010164
ABSTRACT
PURPOSE:
Using X-ray micro-computed tomography (micro-CT), the aim of this study was to measure the porosity of two tricalcium silicate sealers (EndoSequence BC and NeoSealer Flo) applied using three obturation techniques (single-cone, warm-vertical, and cold-lateral) to six single-rooted human teeth.METHODS:
Six extracted, single-rooted human teeth were shaped with ProTaper Next rotary files and obturated with EndoSequence BC or NeoSealer Flo sealers and gutta-percha (GP) using one of the three techniques above. Micro-CT was used to map the full length of the canals. Deep learning cross-sectional segmentation was used to analyze image slices of the apical (0-2 mm) and coronal (14-16 mm from the apex) regions (n = 230-261 per tooth) for the areas of GP and sealer, as well as porosity. Median (%) with interquartile range of porosity were calculated , and the results were statistically analyzed with the Kruskal-Wallis test.RESULTS:
In the apical region, EndoSequence BC had significantly fewer pores than NeoSealer Flo with the single-cone obturation (% median-interquartile range, IQR 0.00-1.62) and warm-vertical condensation (5.57-10.32) techniques, whereas in the coronal region, NeoSealer Flo had significantly fewer pores than EndoSequence BC with these two techniques (0.39-5.02) and (0.10-0.19), respectively. There was no significant difference in porosity between the two sealers for the cold-lateral condensation technique in both the apical and coronal regions.CONCLUSION:
For optimal obturation, the choice of technique and sealer is critical.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Materiais Restauradores do Canal Radicular
/
Obturação do Canal Radicular
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Silicatos
/
Compostos de Cálcio
/
Microtomografia por Raio-X
Limite:
Humans
Idioma:
En
Revista:
J Oral Sci
Ano de publicação:
2024
Tipo de documento:
Article