Influence of endodontic sealer cement on fibreglass post bond strength to root dentine

Aim  To test the hypothesis that the composition of endodontic sealer cements and the time elapsed between root filling and fibreglass post fixation interferes with adhesion to root canal dentine. Methodology  Sixty bovine incisor roots were divided into five groups (n = 12): CI, unfilled; SI, fille...

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Bibliographic Details
Published in:International endodontic journal 2008-06, Vol.41 (6), p.476-484
Main Authors: Menezes, M. S., Queiroz, E. C., Campos, R. E., Martins, L. R. M., Soares, C. J.
Format: Article
Language:English
Subjects:
Animals
Bismuth - chemistry
Bismuth - therapeutic use
bond strength
Calcium Hydroxide - chemistry
Calcium Hydroxide - therapeutic use
Cattle
Dental Bonding - methods
Dental Cements - chemistry
Dental Marginal Adaptation
Dental Prosthesis Retention - methods
Dental Stress Analysis
Dentin - drug effects
Drug Interactions
endodontic cement
eugenol
Glass - chemistry
In Vitro Techniques
Incisor
intra-radicular dentine
Post and Core Technique
Resin Cements - chemistry
Resin Cements - therapeutic use
Root Canal Filling Materials - chemistry
Root Canal Filling Materials - therapeutic use
Root Canal Obturation - methods
root post
Stress, Mechanical
Surface Properties
Time Factors
Tooth Root - drug effects
Zinc Oxide-Eugenol Cement - chemistry
Zinc Oxide-Eugenol Cement - therapeutic use
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Summary:Aim  To test the hypothesis that the composition of endodontic sealer cements and the time elapsed between root filling and fibreglass post fixation interferes with adhesion to root canal dentine. Methodology  Sixty bovine incisor roots were divided into five groups (n = 12): CI, unfilled; SI, filled with a calcium hydroxide‐based cement‐Sealer 26, and immediate post fixation; S7, Sealer 26 and post fixation after 7 days; EI, filled with a zinc oxide and eugenol‐based cement‐Endofill and immediate fixation; and E7 Endofill and post fixation after 7 days. The posts were cemented with adhesive system and dual resin cement. Ten roots were cross‐sectioned to obtain two 1‐mm‐thick discs for each cervical (TC), middle (TM) and apical (TA) third of the prepared root portion. The posts were submitted to a micropush‐out test. The other two teeth were evaluated using scanning electron microscopy to analyse the bond interface. Data were analysed using anova, Tukey and Dunnett tests (P 
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2008.01378.x