Effect of EDTA conditioning upon the retention of fibre posts luted with resin cements

Autor: Rinal P. Shah, Barry Lee Musikant, Allan S. Deutsch, Brian J Rasimick
Rok vydání: 2008
Předmět:
Zdroj: International Endodontic Journal. 41:1101-1106
ISSN: 1365-2591
0143-2885
DOI: 10.1111/j.1365-2591.2008.01482.x
Popis: Aim To determine if a final rinse with EDTA improves the short-term in-tooth retentive strength of adhesively luted fibre-reinforced composite posts. Methodology Six different commercial fibre post systems were tested. Post spaces in extracted human anterior teeth were irrigated with either 6% NaOCl or 6% NaOCl followed by 17% EDTA. Posts were luted using the manufacturer’s recommended bonding agent and luting cement. Two different sizes of post were tested for each post system. After 24 h of storage, the retentive strength of the post to the tooth (14 per group, 336 total) was tested using a pull-out technique. Three-way anova and the Student–Newman–Kuels test were used to test the effects of irrigation regimen, post size and post brand on the retentive strength of the fibre post. Results Almost every sample failed at the interface between dentine and luting cement. Irrigation method did not have any significant effect (P > 0.14) for any group other than ParaPost Fibre White (P
Databáze: OpenAIRE