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US 5,700,148 AGranted
Syringe-deliverable neutralizing barrier
AssigneeUltradent Products, Inc.
InventorsDan E. Fischer, Steven D. Jensen
Life of this patent
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AssigneeUltradent Products, Inc.
InventorsDan E. Fischer, Steven D. Jensen
Estimating the term…
A syringe-deliverable neutralizing barrier and methods for delivering a composition to form the neutralizing barrier. The neutralizing barrier is formed from a viscous caulking-type material delivered onto a tooth surface to define an etching area while protecting surrounding dental tissues during the application etching solution. The caulking-type material includes a matrix material and a neutralizing agent and has a viscosity such that it is syringe-deliverable yet will intimately and continuously adhere to the tooth surface without substantially flowing after being placed in a desired configuration. The neutralizing barrier is generally water soluble in order to facilitate quick and easy rinsing of the etching solution and neutralizing barrier in order to terminate the etching process, and preparatory to subsequent bonding of a porcelain crown or resinous composite to the tooth or porcelain prosthesis. The neutralizing barrier is particularly useful with etching solutions containing hydrofluoric acid, but can be used for other relatively strong tooth etchants.
A caulking-type material for application to an acid etchable dental substrate to form a neutralizing barrier that confines an etching composition to a defined area on the dental substrate during an etching procedure, the caulking-type material comprising a mixture product of a matrix material and an acid neutralizing agent, the caulking-type material having a viscosity and rheology such that during the acid etching procedure the caulking-type material (a) will reliably adhere to the dental substrate where it is applied in a desired configuration of the neutralizing barrier, (b) will substantially remain in the desired configuration, and (c) will prevent significant migration of the etching composition from the defined area.
A caulking-type material for application to an acid etchable dental substrate to form a neutralizing barrier that confines an etching composition to a defined area on the dental substrate during an etching procedure, the neutralizing barrier comprising a mixture product of a matrix material and an acid neutralizing agent, the matrix material including water, fumed silica gelled in the water, and an organic material, the neutralizing agent comprising calcium carbonate and sodium bicarbonate, the neutralizing barrier preventing significant migration of the etching composition from the defined area during the etching procedure.
A method for forming a neutralizing barrier on an acid etchable dental substrate, the method comprising the steps of:
A method for etching a defined area of an acid etchable dental substrate, comprising the steps of:
A kit for etching a defined area of an acid etchable dental substrate comprising:
A method for forming a neutralizing barrier on an acid etchable dental substrate, the method comprising the steps of:
A method for etching a defined area of an acid etchable dental substrate comprising the steps of:
Dependencies are inferred from the claim text.