Method of preparing dental ceramics for bonding
AssigneeThe Victoria University of Manchester
InventorPaul V. McCrory
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Abstract
A method of preparing the fitting surface of a dental ceramic body for subsequent bonding to a tooth with, for example, glass polyalkenoate and resin based cements, including the step of depositing, by a vapour phase deposition technique, directly onto the fitting surface of the ceramic body a strongly adherent coating of an inorganic substance such as tin oxide at a thickness ideally less than 2 microns, the coating being reactive with the cement to provide a durable chemical bond therewith which is not subject to chemical degradation in the oral environment and which will not compromise the aesthetics of the associated dental restoration.
Claims12
A method for preparing the fitting surface of a dental ceramic body for subsequent bonding to a tooth, the method comprising the steps of:
- depositing by a vapor phase deposition technique, directly onto said fitting surface of the ceramic body, a strongly adherent coating of a metal oxide;
- and
- applying to said metal oxide coating a phosphate methacrylate dental cement which reacts with said metal oxide coating to provide durable bonding of the body to such cement.
Dependencies are inferred from the claim text.