Denture material composition and method of producing dentures

Claim 2

A COMPOSITION OF MATTER ADAPTED FOR USE IN MAKING ORAL RESTORATIONS, COMPRISING A MIXTURE OF A MAJOR AMOUNT OF POLYMERIZED DENTURE BASE MATERIAL, PINK IN COLOR, AND MINOR AMOUNT OF PARTICLES OF A POLYMERIC PLASTIC MATERIAL WHICH ARE DISCRETELY PIGMENTED WITH COLORS NORMALLY FOUND IN ORAL TISSUE, SAID PIGMENTED PARTICLES, EACH BEING OF A SIZE TO BE SEEN AT A GLANCE IN THE MIXTURE BY THE UNAIDED EYE AND BEING PLASTICIZABLE TO GREATER DEGREE THAN THE DENTURE BASE MATERIAL BY A COMMON COMPATIBLE POLYMERIZABLE PLASTICIZER, AND SAID PIGMENTED PARTICLES WHEN SO PLASTICIZED IN THE MIXTURE BEING ADAPTED TO REMAIN AT LEAST AS PLASTIC AS SAID DENTURE BASE MATERIAL DURING THE GELLING STAGE OF THE MIXTURE.

Claim 3

A PROCESS FOR THE PREPARATION OF A DENTURE OF HETEROGENEOUS COLOUR DISTRIBUTION, COMPRISING MIXING A MAJOR AMOUNT OF PINK COLORED DENTURE BASE MATERIAL WITH A RELATIVELY SMALL AMOUNT OF PARTICLES OF POLYMERIC PLASTIC MATERIAL WHICH ARE DISCRETELY INTENSELY PIGMENTED WITH COLORS PRESENT IN NORMAL ORAL TISSUE, SAID PARTICLES BEING AT LEAST A READILY PLASTICIZABLE AS THE DENTURE BASE MATERIAL BY A COMMON COMPATIBLE POLYMERIZABLE PLASTICIZER, AND SAID PARTICLES, WHEN SO PLASTICIZED IN THE MIXTURE, ADDING A SUFFICIENT AMOUNT OF POLYMERIZABLE PLASTIDENTURE BASE MATERIAL DURING THE GELLING STAGE OF THE MIXTURE, ADDING A SUFFICIENT AMOUNT OF POLYMERIZABLE PLASTICIZER TO THE MIXTURE TO FORM A SLURRY, ALLOWING SAID SLURRY TO STAND FOR SEVERAL MINUTES TO FORM A GELLED DOUGHY MASS AND APPLYING LOCALIZED PRESSURE BY GENTLE KNEADING OR SPATULATION TO DEFORM AND DOUGHY MASS AND THEREBY DISPERSE AND STREAK THE MORE PLASTIC COLORED PARTICLES THROUGH THE DOUGH MASS TO AN EFFECTIVE VOLUME MANY TIMES THE ORIGINAL VOLUME OF THE COLORED PARTICLES.

Claim 4

A PROCESS FOR THE PREPARATION OF A DENTURE OF HETEROGENEOUS COLOUR DISTRIBUTION, COMPRISING MIXING A MAJOR AMOUNT OF PINK COLORED DENTURE BASE MATERIAL WITH A RELATIVELY SMALL AMOUNT OF PARTICLES OF POLYMERIC PLASTIC MATERIAL WHICH ARE DISCRETELY INTENSELY PIGMENTED WITH COLORS PRESENT IN NORMAL ORAL TISSUE, SAID PARTICLES BEING AT LEAST A READILY PLASTICIZABLE AS THE DENTURE BASE MATERIAL BY A COMMON COMPATIBLE POLYMERIZABLE PLASTICIZER, AND SAID PARTICLES, WHEN SO PLASTICIZED IN THE MIXTURE, ADDING A SUFFICIENT AMOUNT OF POLYMERIZABLE PLASTIDENTURE BASE MATERIAL DURING THE GELLING STAGE OF THE MIXTURE, ADDING A SUFFICIENT AMOUNT OF POLYMERIZABLE PLASTICIZER TO THE MIXTURE TO FORM A SLURRY, ALLOWING SAID SLURRY TO STAND FOR SEVERAL MINUTES TO FORM A GELLED DOUGHY MASS AND APPLYING LOCALIZED PRESSURE BY GENTLE KNEADING OR SPATULATION TO DEFORM AND DOUGHY MASS AND THEREBY DISPERSE AND STREAK THE MORE PLASTIC COLORED PARTICLES THROUGH THE DOUGH MASS TO AN EFFECTIVE VOLUME MANY TIMES THE ORIGINAL VOLUME OF THE COLORED PARTICLES.