Dental core form and method of use

Claim 1

A dental core form including a sleeve-like member to fit about a portion of a tooth on which a core for a crown is to be formed, said sleeve-like member being tapered inwardly from the base to its outer end and being open at both ends, said core form having a maximum circumference which is less than that of the tooth with which it is to be used, said sleeve-like member being corrugated longitudinally so that the core formed by the use of the core form will be circumferentially corrugated, and at least an external portion of said sleeve-like member including means on a lower part thereof for assisting adhesive to secure said core form in the mouth during formation of said core.

Claim 7

A method of preparing a core for a crown on a tooth including the steps of: (a) preparing the tooth for receiving the core; (b) providing a dental core form by preparing a sleeve-like member to fit about a portion of the tooth so as to be tapered inwardly from its base to its outer end while being open at both ends and having a maximum circumference less than that of the tooth, corrugating the sleeve-like member longitudinally, and providing means on a lower part of the sleeve-like member for assisiting an adhesive to secure said core form in the mouth; (c) mounting said dental core form on the prepared tooth; (d) temporarily securing said core form by adhesive on said means to said prepared tooth or to an adjacent tooth; (e) fitting the core form with a hardenable material; (f) allowing the material to harden; and (g) removing the core form from the tooth and hardened material.

Claim 8

A method of preparing a core for a crown on a tooth including the steps of: (a) preparing the tooth for receiving the core; (b) providing a dental core form by preparing a sleeve-like member to fit about a portion of the tooth so as to be tapered inwardly from its base to its outer end while being open at both ends and having a maximum circumference less than that of the tooth, corrugating the sleeve-like member longitudinally, and providing means on a lower part of the sleeve-like member for assisiting an adhesive to secure said core form in the mouth; (c) mounting said dental core form on the prepared tooth; (d) temporarily securing said core form by adhesive on said means to said prepared tooth or to an adjacent tooth; (e) fitting the core form with a hardenable material; (f) allowing the material to harden; and (g) removing the core form from the tooth and hardened material.