E. Asmussen et al., ADHERENCE OF RESIN-BASED LUTING AGENTS ASSESSED BY THE ENERGY OF FRACTURE, Acta Odontologica Scandinavica, 51(4), 1993, pp. 235-240
The present study assessed the adherence of nine commercial resin ceme
nts by means of the wedge test. The beams of the test were made of a N
i-Cr-Be alloy, and the adhering surfaces were sandblasted with 250 mum
Al2O3. The energy of fracture of the investigated cements varied from
less than 10 J/m2 to 121 J/m2. The fracture energies were not influen
ced by 1) the thickness of the joint, 2) the width of the beams, 3) th
e use of an intermediary noncomposite resin, or 4) storage in water be
yond 24 h. In spite of a rather high variability within groups, it is
concluded that the wedge test may give relevant data on the performanc
e of adhesive joints.