CMP INDUSTRIES LLC Patent applications |
Patent application number | Title | Published |
20160100917 | MOLDED DENTURE AND METHOD AND APPARATUS OF MAKING SAME - A method for making a denture comprising creating three-dimensional models of top denture base, bottom denture base, and denture tooth molds; fabricating the molds by an additive manufacturing process; joining the bottom denture base mold to the top denture base mold to form a denture base mold cavity; injecting fluid synthetic denture base material into the mold cavity and curing the material to form the denture base; removing the bottom denture base mold from the top denture base mold, while leaving the denture base in the top denture base mold; joining the denture tooth mold to the top denture base mold to form a mold cavity defining the shape of denture teeth; and injecting fluid synthetic denture tooth material into the denture teeth mold cavity and curing the material to form the denture teeth joined to the denture base. An apparatus for making the denture is also disclosed. | 04-14-2016 |
20140272800 | DENTAL CROWNS AND BRIDGES AND METHOD OF MAKING SAME - Dental prostheses and methods for making them are disclosed. In one embodiment, a method comprises a sequence of steps including milling a cavity in a block of a coping material, filling the cavity with a green ceramic material, milling a portion of the green ceramic material away to leave a layer of green ceramic material on an occlusal surface formed in the coping material, milling the underside of the block of coping material to form the coping with green ceramic material, and sintering the coping with green ceramic material to complete the prosthesis. The milling steps may be performed by a computer-controlled mill. The computer may execute a CAD-CAM program that includes data from a three dimensional model of a tooth that is to receive the prosthesis. The dental prosthesis may be a dental crown or a dental bridge. | 09-18-2014 |
20140272798 | STRESS-REDUCED DENTURE BASE DISC - A method and apparatus for making a denture base disc that is used subsequently to form a removable denture. A vessel with an elastomeric lining is used to form the denture base disc so that the compression of the elastomeric material is approximately equivalent to the shrinkage of the denture base disc material during its polymerization. The vessel and elastomeric lining contained therein work cooperatively to cause the denture base disc to cure in a homogenous manner with consistent pressure on all sides so that residual stresses in the finished disc are minimized. | 09-18-2014 |
20140272777 | PRECISION-MILLED DENTURE TEETH AND METHOD AND DEVICES FOR MAKING SAME - A device for making artificial teeth for a denture. The device is comprised of a nest comprised of a lower portion formed of a rigid material and having an upper planar surface, and an upper portion contiguous with the upper planar surface of the lower portion, and formed of an elastomeric material and configured to receive a plurality of the artificial teeth and hold the teeth in predetermined positions relative to the upper planar surface. A method for making artificial teeth using the nest and a fixative applied thereto is also disclosed. The method may include milling of the artificial teeth by a CAD-CAM operated mill. | 09-18-2014 |
20140234802 | MOLDING ARTIFICIAL TEETH IN DENTURE BASE DISC - A method of molding artificial teeth in denture base material comprising forming a U-shaped cavity in a block of denture base material, forming socket cavities in the bottom of the U-shaped cavity, casting a fluid artificial tooth material into the cavities, and causing the fluid tooth material to solidify into solid artificial tooth material while applying pressure. Causing the solidification may include heating the fluid tooth material. The method may include casting a liquid elastomer into a bottom portion of the U-shaped cavity following forming that cavity and prior to the forming the socket cavities, curing the liquid elastomer into a solid elastomeric cushion, and removing the cushion from the U-shaped cavity. Subsequently, the cushion may be inserted into the U-shaped cavity and contacted with the fluid tooth material. A die may then be contacted with the cushion to apply pressure to it and the fluid tooth material during curing. | 08-21-2014 |