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Influence of silane and solvated bonding agents on the bond strength to glass‐fibre posts
Author(s) -
Oliveira Aline S.,
Ramalho Elisa S.,
Spazzin Aloísio O.,
Naves Lucas Z.,
Moraes Rafael R.
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.1747-4477.2011.00337.x
Subject(s) - silane , silanization , bond strength , adhesive , materials science , composite material , silanes , solvent , acetone , polymer chemistry , chemistry , organic chemistry , layer (electronics)
The combined use of silane and solvated bonding agents on the bond strength to glass‐fibre posts was investigated. A model Bis‐GMA/HEMA adhesive was formulated with no solvent, 30% of ethanol or 80% of acetone. The surfaces of rectangular‐shaped posts were silanated or not and one of the agents was applied, except for the control group. Cylinders of resin cement (RelyX ARC, 3M ESPE, Saint Paul, MN, USA) were built‐up on the surfaces ( n = 20) and submitted to shear testing. All groups showed higher bond strengths when the surfaces were silanated. When no silanization was carried out, the use of bonding agents, either solvated or non‐solvated, increased the bond strengths. All groups treated with both silane and bonding agent showed higher bond strengths than the group that was only silanated. Control and ethanol‐based adhesives were similar, whereas the acetone‐based agent yielded higher bond strengths. Adhesive failures were predominant. Combination of silane and adhesive enhanced the bond to fibre posts.