The correlation between fluid transport and push-out strength in root canals filled with a methacrylate-based filling material.
Int Endod J
; 48(2): 193-8, 2015 Feb.
Article
en En
| MEDLINE
| ID: mdl-24749656
ABSTRACT
AIM:
To investigate the correlation between fluid transport and dislocation resistance in canals filled with a methacrylate-based filling material.METHODOLOGY:
The root canals in sixty-five single-rooted human teeth were prepared to size 40, 0.06 taper. Sixty roots were filled with a single-cone technique using RealSeal SE sealer and divided into 3 groups, whilst five roots served as fluid transport positive control. Group 1 (n = 20) correlation group. Specimens were consecutively tested with fluid transport for 90 min and thereafter with the push-out test at coronal and apical root levels. Group 2 (n = 20) push-out control. Specimens were only subjected to the push-out test at coronal and apical root levels. Group 3 (n = 20) fluid transport negative control. Specimens were totally covered with nail varnish. The correlation between fluid transport and dislocation resistance was assessed by Kendall's tau-b coefficient. The Mann-Whitney U-test was used to compare dislocation resistance between groups 1 and 2 and fluid transport between groups 1 and 3. Significance level was set at P < 0.05.RESULTS:
Kendall's tau-b correlation coefficients between fluid transport and dislocation resistance were weak, being coronally 0.139 (P = 0.444) and apically -0.080 (P = 0.658). No significant difference in dislocation resistance could be detected between groups 1 and 2 at both root levels (P = 0.052 and P = 0.336, respectively).CONCLUSION:
No significant correlation could be identified between fluid transport and dislocation resistance, meaning that the corono-apical sealing ability of a methacrylate-based root canal filling is independent of its adhesive properties as indicated by its dislocation resistance.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Materiales de Obturación del Conducto Radicular
/
Obturación del Conducto Radicular
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Preparación del Conducto Radicular
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Filtración Dental
/
Metacrilatos
Límite:
Humans
Idioma:
En
Revista:
Int Endod J
Año:
2015
Tipo del documento:
Article
País de afiliación:
Países Bajos