4-acryloxyethyltrimellitic-acid and methacryloyloxydecyl-dihydrogen-phosphate

The purpose of the current study was to evaluate the adhesive performance of metal conditioners and a surface modification system when used for bonding between a prosthetic composite material and a titanium alloy.. Eight metal conditioners (Acryl Bond, All-Bond 2 Primer B, Alloy Primer, Ces II Opaque Primer, Eye Sight Opaque Primer, Metafast Bonding Liner, Metal Primer II, and MR Bond) and a bonding system (Siloc) were assessed. Cast disk specimens made of a titanium alloy (Ti-6Al-7Nb, T-Alloy Tough) were either primed with one of the eight primers or treated with the Siloc system and bonded with a light-activated prosthetic composite material (Artglass). Shear bond strengths were determined both before and after thermocycling (4 C-60 C, 60 s each, 20,000 cycles) for evaluation of the durability of the bonds.. The results showed that the Siloc-treated group recorded the greatest post-thermocycling bond strength, followed by the two groups conditioned with the Cesead II Opaque Primer and Alloy Primer agents, both of which contain an identical hydrophobic phosphate-methacrylate functional monomer.

Topics: Alkanes; Analysis of Variance; Composite Resins; Dental Alloys; Dental Bonding; Dental Materials; Dental Prosthesis; Glass Ionomer Cements; Humans; Maleates; Materials Testing; Methacrylates; Methylmethacrylate; Phosphates; Resin Cements; Silicate Cement; Stress, Mechanical; Surface Properties; Surface-Active Agents; Temperature; Thermodynamics; Titanium; Triazines; Tricarboxylic Acids

When resin-bonded prostheses are constructed with titanium, they must be strongly bonded with luting materials for the prostheses to withstand the oral environment over the long term. However, limited information is available about the bond durability between luting materials and titanium.. This study determined whether a phosphate and two thiophosphate primers increase bond strength and durability between a commercially available pure titanium and four luting agents.. Three primers and four luting agents were divided into three groups according to the type of acidic monomers: carboxylic acid derivatives (4-META, 4-AET, and MAC10), a phosphoric acid derivative (MDP), and a thiophosphoric acid derivative (MEPS). Disk specimens were bonded with 16 combinations of 3 primers and 4 luting agents, including 4 controls. Shear bond strengths were determined after 1-day immersion in water and after thermocycling for 100,000 cycles.. Bond strengths were influenced by thermocycling, primer, luting agent, and their combinations. After thermocycling, the groups that demonstrated the highest bond strengths were six combinations of two primers (Cesead Opaque Primer and Metal Primer II) and three luting agents (Imperva Dual, Panavia 21, and Super-Bond C&B).

Topics: Analysis of Variance; Boron Compounds; Dental Bonding; Dental Prosthesis Design; Humans; Immersion; Materials Testing; Methacrylates; Methylmethacrylates; Mouth; Phosphates; Phosphoric Acids; Resin Cements; Stress, Mechanical; Surface Properties; Thermodynamics; Titanium; Tricarboxylic Acids; Water