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AssigneeDentsply Research & Development Corp.
InventorsBarry Dehoff, Jeffrey McGraw, James McNulty, Vickie Reynolds, Roger Shue, Mark White
Estimating the term…
A prosthetic tooth having an enamel layer which has a zone of substantially constant thickness. This tooth is molded using a dental tooth mold part prepared by imaging a dental pattern of a prosthetic tooth shade layer and/or shader mold part outer surface, and forming the dental pattern in a mold by program directed milling. A family of prosthetic teeth is provided including a first tooth in a first set of teeth having a first overall labial length, and a first back length, and a second tooth in a second set of teeth having a second overall labial length, and a second back length. The invention provides a prosthetic incisor tooth including a tooth body having two generally symmetrical curved grooves between three curved ridges on the labial face of the body at the incisal end of the body. The grooves are deepest at the incisal end and extend substantially from the incisal edge to at least about 15 percent of the overall tooth length.
A prosthetic tooth, comprising an enamel layer and a tooth body,
A prosthetic tooth, comprising an enamel layer and a tooth body, said enamel layer having an outer surface and a zone of enamel having substantially constant thickness when measured along a line extending normal to said outer surface, said enamel thickness varies less than 20 percent within said zone, and said zone has a radius which is at least equal to said thickness.
A prosthetic tooth having an incisal edge, a labial face and an overall labial length, comprising an enamel layer and a tooth body, said enamel layer having a zone of substantially constant enamel thickness, said enamel thickness at any point selected on the labial face postitioned within at least 20 percent of the overall labial length from the incisal edge being within 0.003 inch of the thickness of said enamal at any other point within 0.005 inch of said point selected.
A prosthetic tooth, comprising an enamel layer and a tooth body, said enamel layer having a zone of substantially constant enamel thickness, said enamel layer having an outer surface and an interface with a shade layer, and said outer surface and said interface having contours of substantially the same size and shape within said zone.
Dependencies are inferred from the claim text.