In vitro evaluation of dentinal bonding agents in mixed Class V cavity preparations.
The effect of ten dentinal bonding agents on composite resin restorations was tested in mixed Class V cavity preparations. The marginal quality of the restorations was quantified under a scanning electron microscope before and after thermocycling. In addition, the marginal seal was semiquantitatively evaluated with a dye penetration technique. Marginal adaptation in dentin was poor in seven test groups. Three products showed values of excellent margin in dentin exceeding 50% after thermocycling. Furthermore, some dentinal bonding agents had a deleterious effect on marginal adaptation to the etched enamel surfaces.
Airoldi
R L
RL
University of Zurich, Dental Institute, Switzerland.
Krejci
I
I
Lutz
F
F
D001641:Bicuspid; D003188:Composite Resins; D001840:Dental Bonding / Q000379:methods*; D003738:Dental Cements; D003763:Dental Leakage / Q000517:prevention & control*; D003804:Dentin; D005069:Evaluation Studies as Topic; D006801:Humans
D003188:Composite Resins; D003738:Dental Cements