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Effect of post‐space treatments on the push‐out bond strength and failure modes of glass fibre posts
Author(s) -
Arısu Hacer Deniz,
Kıvanç Bağdagül Helvacıoğlu,
Sağlam Baran C.,
Şimşek Eser,
Görgül Güliz
Publication year - 2013
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/j.1747-4477.2010.00275.x
Subject(s) - bond strength , root canal , distilled water , scanning electron microscope , materials science , group (periodic table) , dentistry , chemistry , composite material , medicine , adhesive , organic chemistry , layer (electronics) , chromatography
The aim of this study was to evaluate the effect of different post‐space treatments on the push‐out bond strength and failure modes of glass fibre posts. Forty mandibular premolar roots were cut and endodontically treated. Post spaces were prepared and roots were divided into four groups. In group 1 distilled water irrigation (control), in group 2 2.25% NaOCl irrigation, in group 3 2.25% NaOCl + 17% EDTA irrigation were done and in group 4 diode laser was applied to the prepared post spaces. Scanning electron microscope (SEM) analysis was made for each group. Fibre posts were then luted with resin cement. Each root was prepared for push‐out test. Data were statistically analysed with anova ( P = 0.05). After push‐out test, the failure modes were observed but not statistically analysed. There were statistically significant differences between Group 3 and Group 2 in both regions ( P < 0.05), also in the middle region of Group 4 and Group 2 ( P < 0.05). Cervical root segments showed higher bond strengths than middle ones in all groups ( P < 0.05). The highest bond strength values were obtained from NaOCl/EDTA and the lowest bond strength values were obtained from NaOCl for both regions.