[The bonding strength of metal-enamel bonds under tensile and torsion loading].

The tensile strength as well as the torsion shear strength of six bonding systems were tested for the bonding of bovine enamel to Ni-Cr alloy Wiron 88 after cyclic thermal shock. The tested systems were: first sandblasting and thereafter A) silicoating and Microfill pontic, B) Microfill pontic, C) electrolytic etching and Microfill pontic, D) an experimental material which was developed of Sebond MKV, E) Estiseal/Microfill pontic, F) electrolytic etching or Estiseal/Microfill pontic BO/KII. Compared to the other methods sandblasting and silicoating (A) significantly showed the best results (p less than 0.05).