Adhesive 4-META/MMA-TBB Opaque Resin with Poly(methyl methacrylate)-coated Titanium Dioxide

Abstract

An adhesive opaque resin for veneering on cast metal was developed with 4-methacryloxyethyl trimellitate anhydride and poly (methyl methacrylate)-coated titanium dioxide prepared by aqueous phase polymerization. The opaque resin was a modified 4-META/MMA-TBB resin. The powder consisted of 20% of the encapsulated material and 80% PMMA instead of pure PMMA powder. This resin hides the metal color when the thickness of the resin is as thin as 50 microns. The opaque resin bonded strongly to both cobalt-chromium alloy and visible-light-cured veneering resin. This self-curing opaque resin is applicable not only for bonding veneering resin to an alloy surface but also for bonding fixed partial dentures to enamel surfaces.

Effect of composition, viscosity and thickness of the opaquer on the adhesion of resin composite to titanium

“…The variations between the opaquers in terms of bond strength could be explained based on the variations in the degree of water uptake, namely due the hydrophilic character of the dimethacrylates. Detrimental effect of thermocyling on opaquers when compared to testing without aging has been previously reported [12][13][14][15][16][17][18]. As discussed above, the increased number of thermal cycling as well as long-term water storage which was not practiced in this study may influence the water saturation and thereby, decreased bond strength could be expected.…”

“…Most of the studies on metal-resin adhesion involved different thermocycling times but the common consensus was that the thermocycling decreased the bond strength as it weakens the interface [12][13][14][15][16][17]. A minimum of 5000 cycles are advised according to the ISO norm for metalresin adhesion tests [18].…”

“…Although there is an ISO norm, this was also not practiced in these studies. Although addition of 4-META in the opaquer composition has already been suggested almost two decades ago [13,20] with durable results on cobalt chromium alloy, new photo-polymerized opaquers unfortunately do not contain this monomer. On the other hand, in those studies 4-META based opaquers were polymerized in a xenoscopic photo-polymerization unit which again is not applicable for intraoral repairs.…”

A New Ion-coating Surface Treatment of Alloys for Dental Adhesive Resins

“…Preparation ofspecimensfor adhesion. -Masking tape with a 5.0-mm hole was carefully attached to the upper surface of pared as by Matsumura and Nakabayashi (1988) or the phosphate-methacrylate opaque resin (Panavia Opaque, Kuraray Co.…”

Magnetic Properties of Nanoparticle–Polymer Composites Prepared Using Surface Modification and Cross-Linking Reaction

“…To this end, polymer composites were fabricated using magnetite (Fe 3 O 4 ) nanoparticles, modified with 4-META (4-methacryloylioxyethyl trimellitate anhydride), 13,14) and subsequently cross-linked with PEG-4SH (pentaerythritoltetrapolyethylene glycol ether with four thiol-modified terminals). The magnetic properties and microwave absorption properties of these composite were then investigated and compared with epoxy resin composites.…”