Formation of chemical bonds on zirconia surfaces with acidic functional monomers

Abstract

We investigated the chemical interaction between zirconia surfaces and functional monomers using X-ray photoelectron spectroscopy (XPS). Two types of zirconia disks cleaned with piranha solution were treated with one of two phosphate primers (Alloy Primer, Clearfil Ceramic Primer) or a carboxylic primer (Super-Bond C&B Monomer), and rinsed 3 times with acetone. XPS analysis revealed that phosphorus was incorporated into zirconia when the surface was treated with a primer containing phosphate monomer (10-methacryloyloxydecyl dihydrogen phosphate; MDP). However, the S 2p peak of a triazine dithiol monomer (6-[N-(4-vinylbenzyl)-n-propylamino]-1,3,5-triazine-2,4-dithione; VTD) and Si 2p peak of silane (3-trimethoxysilylpropyl methacrylate; TMSPMA) were not detected in the spectra of the primed surface. The [C]/[Zr] ratio for the surface treated with a carboxylic anhydride (4-methacryloyloxyethyl trimellitate anhydride; 4-META) primer was smaller than that treated with MDP. These results demonstrated that 4-META and MDP adsorbed to zirconia, whereas the VTD and TMSPMA did not.

Reactivity and Bond Strength of Universal Dental Adhesives with Co-Cr Alloy and Zirconia

“…For the non-etchable zirconia surfaces [14], chemical bonding of carboxyl and phosphate functionalized methacrylate monomers with surface Zr, via hydrogen bonding and ionic interaction has been confirmed [31,32], while thiol and silanol functionalized analogues failed to adsorb on zirconia [32]. In the present study, traceable bonds on zirconia were identified only after AB treatment.…”

Novel Coatings on Zirconia for Improved Bonding with Veneer Ceramics

“…However, VC delamination from the core structure is frequently observed in the clinical situation [20], and its fracture remains a primary cause of failure [14,27]. Therefore, in achieving acceptable VC bonding in a wide range of clinical applications, alternative treatment methods that ideally utilize chemical adhesion in addition to mechanical retention [38] are required for zirconia ceramics.…”

The effect of carboxyl-based monomers on resin bonding to highly translucent zirconia ceramics

“…It could be due to carboxylic monomers may chemically adhere to zirconia. According to Shimoe et al 30) , in which the bonding between zirconia surfaces and functional monomers was investigated using X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray microanalysis, an increase in the [C] and [O] intensity peaks was obvious when the zirconia peaks on primed surfaces were masked off by absorbed primer films, denoting that 4-META chemically adheres to the zirconia surface. On the other hand, the difference between 4-META and MDP which 4-META has less adsorption than MDP was elucidated by an analysis of the atomic ratios of [C].…”