Effect of Metal Conditioner Application on Bond Strength of Luting Cements to a Noble Metal

Abstract

The purpose of this study was to evaluate the adhesive performance of luting cements to a noble metal alloy treated with metal conditioners.Cast disk specimens made of a noble metal alloy were gritblasted with alumina followed by no treatment or priming with two different types of metal conditioner.A mold was placed on the metal surface and filled with luting cement. Ten samples per test group were stored in 37°C distilled water for 24 hours, then shear tested at a cross-head speed of 1.0 mm/minute.ANOVA and Tukey's HSD tests (a = 0.05) were done. The mean bond strength of resin-modified glass ionomer cement increased significantly with metal conditioner application compared to the controls, indicating the efficacy of the tested metal conditioners in improving bond strength.Based on the results of this study, it seemed to be a useful method to incorporate a functional monomer into resin cements so as to improve the bond strength to a noble metal alloy.

Evaluation of two dual-functional primers and a tribochemical surface modification system applied to the bonding of an indirect composite resin to metals

“…The functional monomer contained in the metal conditioner can be divided into two categories: an acid derivative (carboxylic 1,27 or phosphate 28,29 ) monomer effective for base metals, and a thione monomer for noble metals. 6,9,12,13,30,31 The metal primers assessed herein contain both types of functional monomer. The alloy primer contains diphosphate monomer (MDP) for base metals and dithiol monomer (VTD) for noble metals, 7,9,10 whereas the ML primer includes another thione monomer (MDDT) for noble metals and an acidic phosphonoacetate monomer for base metals (MHPA) (see Table 1).…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Mechanical adhesion refers to the bonding of two surfaces by interlocking.…”

Effects of Primers Containing Thiouracil and Phosphate Monomers on Bonding of Resin to Ag-Pd-Au Alloy

“…Adhesive bonding to noble metal alloys was improved by the use of sulfur-containing functional monomers [13][14][15][16][17][18][19][20][21][22][23][24] .…”

“…To bond noble metal alloys, additional surface modification treatments such as tin plating 9) , high temperature oxidation 10) , galliumtin alloy technique 11) , and silica coating 12) were devised. On bonding to noble metal alloys, methacrylate monomers which contain sulfur in the molecules were synthesized [13][14][15][16][17][18] and used clinically as primers [19][20][21] . Sulfur-containing monomers which dissolved in commercially available primers were tautomers of 6-[N- (4-vinylbenzyl)propylamino]-1,3, 5-triazine-2,4-dithiol and 6-[N-(4-vinylbenzyl) propylamino]-1,3,5-triazine-2,4-dithione (VBATDT) 22) , thiophosphoric acid derivative (MEPS) 23) , 6-methacryloxyhexyl 2-thiouracil-5-carboxylate (MTU-6) 24) , and 10-methacryloxydecyl-6,8-dithiooctanate (10-MDDT).…”

Effect of Metal Priming Agents on Bond Strength of Resin-modified Glass Ionomers Jointed to Gold Alloy

“…However, limited information is available regarding the bond strength of RMGICs in combination with metal priming agents 11,12) . The aim of this study, therefore, was to evaluate in vitro the shear bond strength to a gold alloy of RMGICs combined with three metal priming agents.…”