Abstract: A portion of a dental prosthesis may include at least two support layers formed within a pliable material. At least two of the support layers may be positioned within the pliable material in a substantially parallel orientation to one another. A first support layer may be positioned within a predetermined range of a first surface of a dental prosthesis. A second support layer may be positioned within a predetermined range of a second surface of a dental prosthesis. A support layer may allow a portion of a dental prosthesis to include a thickness within a predetermined range. A method of forming a portion of a dental prosthesis is also disclosed.
Abstract: A biocompatible form and a method for fabricating the implant are provided. The biocompatible form may be used to support bone graft material such as that used to reconstruct missing bone in a patient's oral cavity. The implant is fabricated from a biocompatible mesh, which may be made of titanium, a titanium alloy or fiber and is permanently implantable in the patient's oral cavity. The biocompatible form has an anatomical configuration which includes one or more portions conforming substantially to various alveolar bone contours which may include predetermined, human interproximal bone contours, root prominence bone contours and mylohyoid ridge bone contours. The biocompatible form may include a palatal section. The biocompatible form may also include one or more apertures for receiving a corresponding number of dental prostheses therethrough.
Abstract: The invention provides high strength dental polymeric dental products made from wax-like polymerizable dental material. These dental products have superior strength compared to products formed from prior wax-like polymerizable materials. Prior wax-like polymerizable materials do not form strong enough polymeric material for making dentures. High strength dentures are made by positioning artificial teeth in wax-like polymerizable dental material of the invention. This material is then shaped and polymerized to the form a denture base of high strength dental polymeric material. These dentures are completed without forming wax and without applying inorganic plaster to the artificial teeth.
Abstract: The invention provides high strength dental polymeric dental products made from wax-like polymerizable dental material. These dental products have superior strength compared to products formed from prior wax-like polymerizable materials. Prior wax-like polymerizable materials do not form strong enough polymeric material for making dentures. High strength dentures are made by positioning artificial teeth in wax-like polymerizable dental material of the invention. This material is then shaped and polymerized to the form a denture base of high strength dental polymeric material. These dentures are completed without forming wax and without applying inorganic plaster to the artificial teeth.
Abstract: This invention relates to novel room-temperature process for obtaining calcium phosphate, in particular hydroxyapatite, coatings and microspheres that encapsulate drugs, proteins, genes, DNA for therapeutical use. The coatings and microspheres are designed to perform a defined biological function related to drug delivery, such as gene therapy through gene delivery. A novel method for encapsulation, and subsequent controlled release of therapeutically active agents from such biofunctional coatings and microspheres is disclosed. Such coatings and microspheres are useful for side-effects free, long-term, targeted, controlled release and delivery of drugs, proteins, DNA, and other therapeutic agents.
Type:
Application
Filed:
April 20, 2001
Publication date:
October 24, 2002
Inventors:
Tomasz Troczynski, Dean-Mo Liu, Quanzu Yang
Abstract: The invention provides a dental device comprising thermoplastic polyamide having a Charpy notched impact strength of at least 3.5 ft-lb/in2. Preferably the polyamide comprises at least 10 percent by weight of micro-crystals having a largest dimension less than 750 nanometers. Preferably the device is a Denture base, denture, partial denture, clasp, splint, or night guard. Preferably, the polyamide has an opacity of less than 30 percent. The invention provides a metal cartridge container containing particles of thermoplastic polyamide effectively free of pigment. The metal cartridge is used in a method of making a partial dental prosthesis having a substantially transparent clasp. First a substantially transparent thermoplastic is injected into a first portion of a mold cavity of a mold containing an artificial tooth, and then a substantially opaque thermoplastic injecting into a second portion of the mold cavity.
Type:
Application
Filed:
December 14, 2001
Publication date:
June 6, 2002
Inventors:
Andrew M. Lichkus, William James Schiffer, Craig L. Nalbone, Michael L. DeCavalcante
Abstract: Dental composition, product and process using a silicon containing abrasion resistant material. The dental products formed are abrasion resistant and self-lubricating across their entire cross sections. Dental compositions useful for forming dental products in accordance with the invention preferably includes an ethylenically unsaturated silane. The composition is formed into a dental prosthesis, such as an artificial tooth, inlay, onlay, facing, crown or bridge.
Abstract: A frame for a removable dental prosthesis has a base part having a layer of woven fabrics of a composite material, which is arranged as a support shell in the form of an arch designed to cover at least a part of the patient's jaw. An intermediate part extends along the top of the base part to form a beam having a good crushing strength, and forming the limits of the section of the frame. A surface part forms a cap totally covering the base part and intermediate part, the material of the cap being formed by a laminated fiber reinforcement material having an organic matrix of the same nature as that of the base part. The assembly, made up of the base part, the intermediate part and the surface part form, after shaping and polymerization, a self-supporting profiled part having a good breaking resistance.
Type:
Grant
Filed:
November 23, 1999
Date of Patent:
June 12, 2001
Inventors:
Gilles Billet, Bruno Clunet Coste, Andre Collombin, Bernard Maneuf
Abstract: A stratified material (S, S′) for a support part for dental prosthetic element or prosthesis comprising at least one first layer (5) of a fibrous tissue that is hardenable or has been already crosslinked or optionally hardened previously, or impregnated with crosslinked agents or synthetic material is connected at least partially and at least on one side to a second layer (4) of a rigid or soft material, for instance a synthetic material or silicone. The material is moldable and can be adapted specially to the model of a maxillary (1), a duplicate of a maxillary model or a maxillary. In the supporting body including such a stratified material, the second layer (4) is placed on the side facing the maxillary.