Abstract: Described is a two-part, screw retained dental implant prosthesis. The dental implant prosthesis includes both a primary substructure (made of for example, titanium) and a secondary superstructure (made of for example, zirconia). The primary substructure includes a top side and a bottom side, with substructure holes passing through the primary substructure from the top side to the bottom side. The primary substructure is formed to align with and secure against a dental implant as affixed in a patient's jaw. Alternatively, the secondary superstructure is formed to be affixed with the primary substructure. Thus, the primary substructure can be affixed with the dental implant, with the secondary superstructure thereafter being affixed with the primary substructure.

Abstract: A dental bridge system (10) is provided, comprising a superstructure (14) having a teeth-mimicking portion at a distal end thereof, and at least one receiving cavity formed on a proximal side thereof, at least one support arrangement (12) configured for being fixedly secured, at a proximal side thereof, to an alveolar ridge of an individual, and being formed so as to be received, at a distal side thereof, within one of the receiving cavities to facilitate carrying of the superstructure (14), and a buffering arrangement (16) disposed between the superstructure (14) and the support arrangement (12), the buffer arrangement (16) being configured to damp shock impulses between the support arrangement (12) and the superstructure (14).

Abstract: A dental tray impression system, including at least one of a top denture and a bottom denture, and methods of use thereof. A top denture may include (a) a top dental impression tray including an upper trough on a palatal side and configured such that the upper trough fits adjacent to a top alveolar ridge of a patient's mouth and (b) a top tooth portion configured to removably attach to a cavity side of an anterior end of the top dental impression tray. A bottom denture may include (a) a bottom dental impression tray comprising a lower trough on a mandibular side and configured such that the lower trough fits adjacent to a bottom alveolar ridge of the patient's mouth and (b) a bottom tooth portion configured to removably attach to the cavity side of the anterior end of the bottom dental impression tray.

Abstract: Disclosed is an apparatus for implant-bar-supported restoration that includes a superstructure and a plurality of dental bars. At least two of the plurality of dental bars have different shapes or different sizes, and the superstructure is coupled with the plurality of dental bars. Also disclosed is a dental bar including a plurality of separate pieces, wherein: each of the plurality of pieces is shaped and configured to be coupled with a dental implant; each of the plurality of pieces is shaped and configured to be coupled with a superstructure; and each of the plurality of pieces has a different shape or different size.

Abstract: A denture-securing device is provided that is usable to substantially secure a denture within a mouth. The denture-securing device includes at least one absorbent and flexible pad installable on a first side and an opposite second side of a denture that is affixable to a human gum. The at least one pad comprises an embossed outer side configured to face a human gum when the pad is installed on the denture. The denture-securing device may be used with top dentures, bottom dentures, or other configurations of dentures. The denture-securing device may advantageously secure dentures without requiring use of adhesives. The denture-securing device may also reduce the likelihood of food getting under dentures, provide a firm yet soft and comfortable fit, and minimize rocking of lower dentures. The denture-securing device may advantageously be secured to gums using a suction fit through saliva or other sources of moisture.

Abstract: A force damping dental bridge assembly which damps compressive, tensile, and lateral forces on a prosthetic tooth and jawbone through use of synthetic periodontal ligament fibers in the form of a damping membrane. Multiple layers of arcuate components and Morse taper interconnections secure the assembly. A threaded implant that penetrates the jawbone defining a tapered, conical inner cavity which receives a shank protruding downwardly from a full bar. An arcuate damping membrane positions on the bar and a half-bar positions over the membrane; whereby the damping membrane is sufficiently resilient to enable lateral and axial movements by the prostheses affixed to the half-bar.

Abstract: A method of damping compressive, tensile, and lateral compressive and tensile forces on one or more prosthetic teeth and an implant recessed into jawbone through use of synthetic periodontal ligament fibers in the form of a damping membrane within a dental bridge assembly. An arcuate damping membrane positions on a full bar and a half-bar positions over the membrane; whereby the damping membrane is sufficiently resilient to enable lateral and axial movements by the prostheses affixed to the half-bar.

Abstract: A denture-securing device is provided that is usable to substantially secure a denture within a mouth. The denture-securing device may be used with top dentures, bottom dentures, or other configurations of dentures. The denture-securing device may advantageously secure dentures without requiring use of adhesives. The denture-securing device may also reduce the likelihood of food getting under dentures, provide a firm yet soft and comfortable fit, and minimize rocking of lower dentures. The denture-securing device may advantageously be secured to gums using a suction fit through saliva or other sources of moisture.

Abstract: The fabrication of an implant-supported fixed complete denture involves multiple clinical and laboratory steps. One of the main steps is to provide the patient with an interim fixed prosthesis to evaluate the patient's esthetic and function al needs as well as to enhance the patient's psychology before proceeding to the definitive prosthesis. Different techniques for fabricating interim prostheses have been described in the literature. This disclosure describes a method of fabricating an implant-supported fixed interim prosthesis using self-curing acrylic resin. The interim prosthesis may be used as a blueprint for the definitive implant-supported hybrid prosthesis.

Abstract: A bite rim system includes a plurality of dental bite rims having a shape and size that is suitable for use in a human mouth. A plurality of anatomically correct replica teeth is constructed from wax, and also includes various tooth characteristics of different shapes, thicknesses, sizes and colors. A series of replica teeth are removably pre-mounted onto one or more of the bite rims in an anatomically correct pattern. The system also includes one or more replica teeth strips having a front facing surface with the image of one or more teeth imprinted thereon, and a back facing surface that is coated with an adhesive material for mating with one of the dental bite rims.

Abstract: The invention provides methods of reducing shrinkage stress in cross-linked polymerized materials by combining an addition-fragmentation chain transfer additive with a resin system prior to polymerization. The methods of the invention can improve the performance of conventional resin systems by reducing the shrinkage stress without significantly degrading the mechanical properties of the polymerized material. The shrinkage stress in the crosslinked polymeric materials produced by the methods of the invention may be from 25% to 75% of that of a control material produced by polymerization of the resin system alone to the same conversion.

Abstract: Systems and processes for the duplication of dentures from existing dentures. The interior and exterior of the dentures are scanned and a best fit procedure is used to create a fully digitized denture. The denture teeth are selected from a library that is the closest fit to the original denture teeth. The library teeth are offset a preset distance to compensate for the best fit. The teeth are then subtracted from the digitized denture. The margins of the denture are then cleaned after subtracting the teeth. The denture base is then ready for manufacturing. The teeth are then installed onto the denture base and provided to the patient.

Abstract: A cradle, assembly, system and method for installing a prosthesis at a surgical site. The cradle temporarily engages the prosthesis and holds it in the correct orientation and position adjacent the surgical site. An aperture is defined in the cradle and a portion of the prosthesis is received therein. In one embodiment, the cradle, assembly and system are used to install a final dental prosthesis in a patient's mouth in a single visit to the dentist's office. A securement member pins the surgical template and subsequently the cradle to the jaw. A metal sub-structure on the final dental prosthesis is received in the aperture in the cradle. Cylinders attached to implants anchored in the jaw extend through holes in the sub-structure and are bonded to the prosthesis. The cradle is detached from the jaw and from the prosthesis prior to screws being re-inserted through the cylinders and into the implants.

Abstract: A mouth guard system for displaying a message using interchangeable tiles resembling teeth features an upper mouth guard. A plurality of tile channels, tile openings, and tile insertion apertures is located in the upper mouth guard. The system features a lower mouth guard. A plurality of tile channels, tile openings, and tile insertion apertures is located in the upper mouth guard. Each tile opening features a shape resembling a tooth. The system features a plurality of tiles designed to snuggly slide into the tile channel via the tile insertion aperture. The tile is visible via the tile opening. A tile cutout of a symbol, a character, or a picture is located throughout a cross-section of the tile from a tile front surface to a tile rear surface. A back wall of the tile channel is visible through the tile cutout. Each tile features rounded edges and rounded corners.

Abstract: A medical resin composition is produced by mixing a powder of a polymer (A) comprising repeating units having an ester group and a liquid of a vinyl ester monomer (B) having 6 or more carbon atoms to increase a viscosity and, according to demand, further performing a polymerization reaction. The thus produced resin composition inhibits leaching of irritative substances, reduces any adverse effects on the human body by endocrine disruptors, etc. and can be prepared with high operational efficiency. The resin composition is suitably used as a dental resin composition such as a tissue conditioner, a functional impression material, a lining material, a denture base material or a mouth piece material.

Abstract: The purpose is to prevent, ameliorate or relieve various conditions induced in the dried oral cavity or to improve the stability of a denture during use. A solution for treating a denture or a denture stabilizer comprising sericin can be used.

Abstract: A removable denture system comprising a support beam fixedly attached to the individual's alveolar ridge above the mucous membrane by a plurality of dental implants, and a denture generally conforming with the dental parameters of the individual and integrated with a super-structure. The super-structure comprises at least a portion shaped in confirmation with the support beam, and a denture locking arrangement for removably though fixedly articulating the denture to the support beam preventing unintentional disengagement of the denture.

Abstract: Disclosed is a denture shield to prevent denture adhesive from coming in contact with the user's gums and/or oral mucosa including the palate. This shield has two important advantages, the first is the elimination of the hard and messy cleanup of the residue from the user's mouth and the second is the reduction of the adhesive chemicals into the user's system.

Abstract: A flexible denture is provided with a denture plate and a false teeth assembly. The denture plate includes a support member and a deformable member. The support member has an approximately U-shaped base, a labial wall and a lingual wall extending from the base, wherein the labial and lingual walls form an approximate U-shaped cross-section along an imaginary vertical plane to form a channel. The deformable member extending across the channel and spaced a distance from the U-shaped base to separate the channel into a gum receiving section and a fitting section, the fitting section including a plurality of ridges extending between the U-shaped base and the deformable member. The deformable member is constructed of soft and pliable material. The false teeth assembly includes a plurality of false teeth secured to the base, the false teeth assembly includes a reinforcing bar embedded within and connecting the plurality of false teeth.

Abstract: A denture fixative composition containing lower alkyl vinyl ether-maleic anhydride copolymers, water-insoluble and water-swelling polymers, and at least one additional adhesive material which can be used as a denture fixative paste, liquid, powder, aerosol, dissolving tablet, liner or adhesive-like strip.

Abstract: A mucosal adjustment material comprising a combination of a powdery material (a) and a liquid material (b), characterized especially in that a noncrosslinked (meth)acrylic polymer powder having a Tg in the range of 0-60° C., e.g., polybutyl methacrylate, is used as the powdery material and a liquid polymer which has a mass-average molecular weight of 1,000-10,000 and in which the content of oligomers having a molecular weight of 500 or lower is 10 mass % or lower is used as the liquid material. Such powdery material and liquid material are kneaded together to prepare a paste, which is applied to a denture base and used as a temporary relining material. This mucosal adjustment material in a paste form is reduced in the amount of ingredients eluted from the material during use in the mouth. In an ordinary use period, the relining material retains its initial flexibility and does not deteriorate the denture base.

Abstract: A denture liner which includes a hydrophobic polymer component, a plasticizer component and an adhesive component. A method for making this denture liner and a denture liner kit are also provided. The compositions have improved consistency and are useful in prosthodontics, including formulating denture liners for the compositions have a glass transition temperature lower than the lower of an ambient temperature at which the liner is applied and a temperature inside the oral cavity. Phthalate-free embodiments, as well as kits are also described.

Abstract: A dental prosthesis foundation capable of being finished or adjusted or repaired and which may be assembled and adjusted to variable jaw ridge sizes, and formed with self-curing hardened resins. The foundation supports prosthetic teeth and is permanently but removably secured to the jaw by implants embedded in hard dental tissue, such as tooth stubs or bones. The dentures can be readily repaired or adjusted for changes in the jaw of the patient, by chairside techniques available to dentists. The foundation can also be adjusted to changes in size and shape of ridges in the jawbones for more comfortable use of the dentures secured on such prostheses.

Abstract: An oral prosthesis fitment system includes a wax sheet having at least one face coated with a contact or pressure sensitive adhesive. A water activated adhesive is overlaid on the contact or pressure sensitive adhesive and the sheet is contoured by modeling over and around contact surfaces of a denture plate, with the adhesive coated surface facing outward. The denture is then placed in the oral cavity and the water activated adhesive composition is either premoistened or moistened by saliva. Compressive force is then applied to assure a proper fit.

Abstract: The invention relates to copolymers, obtained by the copolymerisation of SiH-group-containing siloxanes with vinyl-group-containing compounds. The copolymers comprise at least two SiH groups. The SiH-groups-containing siloxanes and the vinyl-group-containing compounds are linked to one another via C—Si bonds.

Abstract: A dental product formed by a process and a method of using a denture including providing a denture having an outer face, applying a readily flowable material to the face. The flowable material comprises volatile material and polymeric material. Volatilizing at least a portion of the volatile material from the flowable material to form a readily peelable water swellable solid film. The film is substantially insoluble in water. The film comprising at least 10% by weight of the polymeric material. The denture having an outer face. The film adheres to the face and film effectively not being covalently bonded to the face. The product and method are preferably carried out using an adhesive dispenser including a container, a pump and flowable adhesive. The flowable adhesive is enclosed by the container. The pump is supported by the container and the pump is connected through a conduit to the flowable adhesive.

Abstract: A dental prosthesis adhesive sheet trimming method, for allowing a user to custom trim an untrimmed dental adhesive sheet to create a trimmed dental adhesive sheet which is custom sized to fit the user's dental prosthesis. The dental prosthesis has a ridge recess for accommodating the dental adhesive sheet. The overall outline of the dental prosthesis is traced, which is used to create a final outline which is uniformly eroded along its edges than the overall outline. To allow the user to easily trim the untrimmed dental adhesive sheets to fit the ridge recess, a die is created from the final outline which may be employed by the user to create trimmed dental adhesive sheets wherever needed for use to affix the dental prosthesis within the mouth.

Abstract: Embodiments include either a lower denture, an upper denture without a palate or a set of dentures containing a layer of a dental reline material. Ready made embodiments selected by an edentulous individual user are fitted by immersion in warm water to soften the reline material, fitting the denture within the mouth, and exerting a biting force on the denture for a period of a few minutes. In this time, the reline material conforms to the mouth and gums of the individual user, providing a ready made denture that can be fitted by the individual user without the necessity of having impressions made and numerous fittings by a dental professional.

Abstract: The present invention discloses a silicone rubber with improved adhesive properties; a composite structure in which a base member formed from a synthetic resin or metal is bonded firmly and directly to silicone rubber; a denture in which a biocompatible silicone rubber is firmly bonded to a section of a denture bed that contacts the body; and a method for making the denture. Methyl methacrylate is added to a linear polysiloxane and polymerized in a predetermined molding cavity, and methyl polymethacrylate is formed on at least the surface of the molded silicone rubber. The silicone rubber resulting from this process provides superior adhesive properties. A section of a base member, such as a main unit or an auxiliary member of a product, that is to be bonded with silicone rubber is extended into the predetermined molding cavity. The molding cavity is filled with a linear polysiloxane to which a monomer is added. This results in a composite structure in which silicone rubber is bonded to the base member.

Abstract: A method which comprises using silicone rubber as a material for dental tissue conditioner.

Abstract: A resin composition for denture is provided, which does not require operations for weighing, and mixing during the use; is free from involving of air bubbles; and when used for preparation of a denture base, is free from a reduction in physical properties and staining or discoloration with a lapse of time. Further, a completed denture has a high elastic energy value, is superior in impact resistance, and when applied with an impact or a stress as in the case of dropping, is not readily broken. The resin composition for denture base is in a one-paste state and is constructed by (a) a polymerizable monomer and/or oligomer having a modulus of elasticity at polymerization of 0.25 to 3.00 GPa, (b) an organic filler and/or an organic-inorganic composite filler having a modulus of elasticity of 0.25 to 3.00 GPa, and (c) a polymerization initiator made of a heat polymerization type polymerization initiator and/or a photopolymerization type polymerization initiator, and optionally, (d) an inorganic filler.

Abstract: A denture adhesive liner contains a foamed, flexible, polymeric, self supporting layer that supports a denture adhesive and, optionally, a material for adhering the liner to a denture. The foamed self supporting layer helps provide better cushioning and a more effective gasket for the denture adhesive liner.

Abstract: A process for bonding a denture to the tissue surfaces of the jaw over which the denture is superimposed during use which comprises the steps of providing at the interface of the denture and the jaw's tissues, a liquid irreversible hydrocolloid of an alginate dental impression formulation, applying pressure to the denture so that it presses into the tissue surfaces and causes the liquid hydrocolloid to flow within such interface, and then allowing the hydrocolloid to solidify within the interface. Also described is a novel relatively-thin film, settable hydrocolloid denture aid and the set, cushiony, relatively-thin film denture aid obtained from it.