Dental prosthesis

A non-metallic dental prosthesis product manufactured by the process comprising press-molding a composition comprising from 1 to 50 parts by weight glass particles and from 50 to 99 parts by weight ceramic particles at a temperature from 800 to 1300.degree. C. to form a ceramic frame applying a ceramic veneering composition to said ceramic frame to form a coated frame and firing said coated frame to form a non-metal dental prosthesis product having a ceramic frame and an esthetic ceramic veneer said glass comprises silicon, aluminum, lanthanum, zirconia, boron, calcium and yttrium.

A non-metallic dental prosthesis product manufactured by the process comprising press-molding a composition comprising from 1 to 50 parts by weight glass particles and from 50 to 99 parts by weight ceramic particles at a temperature from 800 to 1300.degree. C. to form a ceramic frame applying a ceramic veneering composition to said ceramic frame to form a coated frame and firing said coated frame to form a non-metal dental prosthesis product having a ceramic frame and an esthetic ceramic veneer said glass is a lanthanum borosilicate glass.

A non-metallic dental prosthesis product manufactured by the process comprising press-molding a composition comprising from 1 to 50 parts by weight glass particles and from 50 to 99 parts by weight ceramic particles at a temperature from 800 to 1300.degree. C. to form a ceramic frame applying a ceramic veneering composition to said ceramic frame to form a coated frame and firing said coated frame to form a non-metal dental prosthesis product having a ceramic frame and an esthetic ceramic veneer said composition is obtained by overcoating ceramic particles comprising at least one of zirconia and alumina with a minor proportion of a first glass and subsequent comminuting to a powder, and by mixing said powder with a second glass powder.

A non-metallic dental prosthesis product manufactured by the process comprising press-molding a composition comprising from 1 to 50 parts by weight glass particles and from 50 to 99 parts by weight ceramic particles at a temperature from 800 to 1300.degree. C. to form a ceramic frame applying a ceramic veneering composition to said ceramic frame to form a coated frame and firing said coated frame to form a non-metal dental prosthesis product having a ceramic frame and an esthetic ceramic veneer etching and treating said ceramic frame to allow dental cement to effectively adhere said prosthesis to a dental supporting structure.

A method of making a non-metallic dental prosthesis product comprising providing a mold, press-molding in said mold a composition comprising from 1 to 50 parts by weight glass particles and from 50 to 99 parts by weight ceramic particles, wherein said ceramic particles have a longest dimension less than 35 microns and said glass particles have a longest dimension less than 100 microns, at a temperature from 800 to 1300.degree. C. to form a ceramic frame applying a ceramic veneering composition to said ceramic frame to form a coated frame and firing said coated frame to form a non-metal dental prosthesis product having a ceramic frame and an esthetic ceramic veneer said mold for press-molding being formed by positioning a wax or wax-substitute model of said prosthesis body within a hardenable investment material composition, hardening said investment material to form a mold having a mold cavity and a subsequently filled with said molding composition.