Adhesion Promoter for Oxide Ceramic Veneer Bonding

The patent replaces complex, expensive equipment (magnetron sputtering devices, flame hydrolysis systems) with a simple, inexpensive sol-gel coating process that can be applied using basic spray or dip methods. The adhesion promoter layer is applied as a simple liquid sol that cures to form the bonding layer, eliminating the need for sophisticated deposition equipment.

The patent replaces complex mechanical deposition systems (magnetron sputtering, corundum blasting) with a chemical sol-gel process. Instead of physically depositing silicate layers through mechanical or physical means, the invention uses chemical reactions of metal alkoxides in a sol-gel system to form the adhesion promoter layer, simplifying the manufacturing process.

The patent changes the chemical composition parameters of the adhesion promoter layer by using specific metal alkoxides (silane, titanate, zirconate, aluminum alkoxide) in controlled ratios. This chemical parameter optimization creates a layer with enhanced chemical bonding capability that maintains durability under extreme oral conditions, going beyond marginal improvements to achieve reliable long-term performance.

The patent creates a composite adhesion promoter layer containing multiple metal oxides and alkoxides (silane, titanate, zirconate, aluminum alkoxide) that work synergistically. This composite chemical system provides both mechanical interlocking and chemical bonding, resulting in a bond that is both strong and durable under the extreme moisture, temperature, and mechanical stress conditions of the oral environment.