摘要:
A coated medical implant, such as a coated dental component, is provided, the coated medical implant including a substrate surface formed of a material comprising available hydroxyl groups and a silicon oxide coating layer chemisorbed on the substrate surface. A method for the preparation of such coated implants is also provided, the method involving application of the silicon oxide coating layer to the substrate surface by chemical vapor deposition. A dental structure is also provided, which includes a first dental component having a substrate surface formed of a material comprising available hydroxyl groups; a silicon oxide coating layer chemisorbed on the substrate surface; a silane coupling agent overlying and covalently attached to the silicon oxide layer; a dental cement overlying and coupled to the silane coupling agent; and a second dental component having a surface bonded to the dental cement.
摘要:
The present invention relates to a radiopaque and aseptic material for impression-taking. Moreover, the present invention relates to the use of said material in implantodontics.
摘要:
This is a system which answers the need to provide pre-fabricated components of various materials that constitute a unique Refractory Model System designed to be used in, but not limited to, the fabrication of fixed dental restorative and prosthetic devices.
摘要:
An improved denture having a gum simulating base with a curved recess therein configured to fit the alveolar ridge of a user with simulated teeth supported by the base, some of the teeth having exposed chewing surfaces and an elongated chew enhancing bar of thin metal positioned within adjacent teeth having chewing surfaces, the bar having a generally rectangular cross-sectional configuration with opposed first and second longitudinal edges, the bar first longitudinal edge being exposed at the chewing surfaces of at least three adjacent teeth.
摘要:
An ultra high strength plastic mesh reinforcing material for forming a dental appliance or prosthesis, a method of fabricating a prosthesis therewith and a dental prosthesis made thereby are provided. The material is in the shape of a ribbon and formed of fibers, preferably of ultra high strength polyethylene, that are woven into a matrix in which yarns of the fibers preferably extend at angles to the transverse extent of the ribbon to permit the ribbon to be shaped through the adjusting of its width by a practitioner. Such yarns are preferably braided, so that diagonally angled fibers will result and no fibers are cut along the edges of the ribbon. The braid is preferably a two-over/two-under pattern that utilizes an odd number of carriers. The fibers are preferably surface activated, such as by a cold plasma treatment to enhance adherence of resin of which the appliance or prosthesis is formed.
摘要:
A method of fabricating "adjustment-free" artificial dentures and a jig therefor. A precise jaw model is formed by pouring soft plaster into the concave surface of a precise provisional denture formed by any conventional dental procedure. A plaster block is formed having a recess conforming to the actual shape of the provisional denture. The recess is filled with a synthetic resin compound and then the precise jaw model is moved into the recess to form a plenum defined by the concave surface in the recess and the convex surface of the precise jaw model. During polymerization, any excess synthetic resin compound spilling over from the plenum can escape into a relatively wide clearance between the precise jaw model and the plaster block thus enabling the plenum to retain its original shape. The use of the precise jaw model eliminates the prior art problems associated with a narrow gap inherently formed between the contiguous surfaces of the upper and lower plaster blocks of the conventional flask, into which the curing synthetic resin compound penetrates to disturb the dimensional relationship of the plenum.
摘要:
A denture-base made of a thermoplastic resin compound which comprises polysulfone resins (A) and a resin (B) selected from the group consisting of polycarbonates, polyester carbonates, aromatic polyester copolymers and their mixtures, is excellent in mechanical properties and compatibility with acrylic resins, firmly implants artificial dentures of acrylic resin, and is readily repaired by use of repair materials of acrylic resin.
摘要:
Duplicatable maxillary denture materials, e.g., partial or complete dentures, wax-ups and bite blocks, are prepared employing the relator assembly and process of the invention. The process involves forming the maxillary denture materials from a rough maxillary cast of the patient's mouth that has a base and an expression of the maxillary alveolar ridge including the anterior palatine papilla and hamular notches. In the process, the cast is suspended over a horizontally extending, flat occlusal base member at a predetermined height corresponding to the proposed incisal length of the denture materials with members of substantially equal height, located on the occlusal table, that contact the cast at the palatine papilla and hamular notches. The base of the suspended rough cast is luted to a maxillary base member that is located over and substantially parallel to the occlusal base member to form a cast whose base is parallel to the hamular-incise plane. Thereafter denture elements, individual artificial teeth or bite-block elements are arranged on the occlusal base member in a predetermined location relative to the cast luted to the maxillary base member and corresponding to the proposed labial drape of the patient. The aforesaid denture elements, individual teeth or bite-block elements are then luted to the alveolar ridge of the cast mounted on the maxillary base member.
摘要:
There is described a method for repairing dental prosthesis which comprises fastening the corresponding break surfaces of the prosthesis to one another by means of a non-toxic fast-setting adhesive having an affinity for the material the prosthesis is made of, and then forming on the lingual surface of said prosthesis facing said break surface fastened to one another, a butt-strip from polyacrylic resin having some width, said strip being fastened to the lingual surface on either side of said break surfaces.
摘要:
An apparatus for resetting of a dental prosthesis comprising a bottom plate having means for fixing the bottom plate to a support plate, at least two pressure columns fastened to said bottom plate and provided at their upper ends with a connecting cross piece, a movable element connected to the connecting cross piece and adapted to be moved parallel to the pressure columns, means for moving the movable element, a pressure element articulatably connected to the movable element so as to provide a clearance therebetween while permitting relative rotation and adapted to be able to exert pressure on the prosthesis mounted on the support plate, and adjustable stop means for adjustably limiting the travel of the pressure element toward the support plate and the prosthesis mounted thereon.