Bond Strength between Amalgam and Tooth Hard Tissues with Application of Fluoride, Glass lonomer Cement and Adhesive Resin Cement in Various Combinations

Abstract

The bovine enamel and dentin samples ground flat with a series of emery papers were pretreated with fluoride either before or after etching, and several of the dentin samples were lined with glass ionomer cement. Adhesive resin cement, Panavia or Super-Bond, was applied on the enamel and dentin samples, and then amalgam was placed on these samples. The highest bond strength between amalgam and enamel was 90 kg/cm2 for Panavia, and 102 kg/cm2 for Super-Bond. These values were obtained by the pretreatment with Ag (NH3)2F. The bond strength between amalgam and the dentin treated with fluoride or the etching agent was 13-17 kg/cm2 for Panavia, and 23-65 kg/cm2 for Super-Bond. The bond strength between amalgam and lined dentin was 41-46 kg/cm2 when Panavia was used. The bond strength tended to be increased by the fluoride treatment prior to etching. We suppose that the adhesion technique for amalgam would be clinically valuable. © 1986, The Japanese Society for Dental Materials and Devices. All rights reserved.