88 results about "Tooth Supporting Structures" patented technology

Improved systems and methods for producing dental restorations and ceramic materials for such restorations are disclosed. Optical properties, preferably including color and translucence characteristics, of a tooth or teeth of a patient are measured with a shade measuring instrument. The tooth to be restored is prepared, and a physical or virtual dental impression is created. A prescription for the restoration, which typically includes color, translucence and thickness information, is sent to the restoration fabrication facility either electronically or physically. A recipe and/or a mixture of ceramics are generated for the restoration, with multiple layers being specified, based on the measured optical properties. The recipe algorithm may adapt, or process checks may be performed, based on measurements of fabricated layers. Preferably, dental ceramics are specified to bracket the region of color space relevant to human teeth, and a reduced set of ceramic materials are manufactured and distributed. Based on measured optical characteristics of the ceramic materials, recipes and/or material mixtures are specified or prepared for the restoration. A virtual impression data file may be transmitted to the laboratory instead of a physical impression.

A preformed mandible splint and a method of aligning and stabilizing a fractured mandible with such a splint is disclosed. The splint is configured to approximate the curvature of the lower teeth or the gingiva of the lower jaw. The curvature of an eight inch diameter sphere approaches the geometric curvature of the human teeth and gum, therefore, the similarly configured splint of the present invention is usable for almost any child or adult. The splint is approximately U-shaped, follows the human dental arcade, and has rows of holes or slots along its outer and inner perimeter. The splint is placed on the teeth or gingiva and wired through the holes or slots to the mandible thus correctly aligning the mandible. Fractures can then be screwed into place according to the curvature of the splint. This eliminates the need of wiring the patient's jaw shut as is presently done in current interdigitation techniques where even minute errors in mandibular repair results in flagrant morbidities in the patient. The U-shape allows the patient's tongue to freely move. Because the splint uniformly fits the population it can be preformed. The gumline follows the same curvature as the teeth, therefore the splint may be used on those without teeth by being placed directly on the gingiva.

A bite-block device for preventing biting of air tubes, such as laryngeal mask airway (LMA) tubes by human teeth is disclosed. The device is composed of a generally cylindrical body, fabricated from a biologically compatible polymer. A hole is present through the long axis of the body. The device also extends in a plane perpendicular to the long axis of the body. Attached to this plane is a coupling device intended for securing an LMA tube to the bite-block. The bite-block is positioned within a patient's mouth against the cheek, with the plane perpendicular to the long axis pressed against the lip. Deployed in this fashion, the bite block engages the molars, bicuspids, and cuspids, preventing contact of the teeth with an LMA tube.

The mouth tray for teeth whitening includes a horseshoe-shaped main body made up preferably of a flexible material and anatomically contoured to fit exactly to the upper and lower sets of adult human teeth. The surface of the mouth tray has a plurality of elevated crisscross patterns to keep the whitening agent in place throughout the procedure. Both the ends of the mouth tray have elevated horizontal ridges with reduced elevation towards the interior portion of the mouth tray prevents the seeping and falling of the whitening agent during the process. A predetermined quantity of whitening gel may be prefilled on the mouth tray. The user just needs to attach the prefilled mouth tray to a suitable lighting device and place the mouth tray inside the mouth.

A dental hygiene apparatus including a mouthpiece formed of a flexible arcuate channel defining and inner space designed for receiving an upper or lower set of human teeth. The channel is provided with longitudinally extending tunnels interconnected by communicating passageways. Each of the tunnels is provided with a longitudinally extending track and a guide slot communicating with the inner space. A carriage assembly includes motor assemblies joined by rigid chassis rods. The carriage assembly is designed such that the motor assemblies may be disposed in the tunnels while the chassis rods are disposed in the passageways. The motor assemblies have a shaft extending through one of the guide slots and carrying a rotatably mounted cleaning head on a distal end. The motor assemblies also include a driven wheel resting on a one of the tracks, for propelling the carriage assembly along the tracks. The cleaning heads rotate to clean the teeth and travel along the tracks to clean each tooth in sequence.

Tooth brace visual indicia for a brace system for human teeth, including an indicia apparatus for engagement with at least one component of a brace system for human teeth. The indicia apparatus includes an attaching carrier removably attachable to the at least one component of the brace system, and the attaching carrier is in operational engagement with or integrally formed with visual indicia. A visual indicia system and a method of providing visual indicia are also disclosed.

A device for use in retracting a gingiva from a human tooth by widening a gingival sulcus with a dental composition. The device comprises a cannula with a free end having an opening for dispensing the dental composition. The free end is shaped to be inserted with its front in the entry of the gingival sulcus, and to laterally displace the gingiva from the tooth as the cannula is moved in the gingival sulcus. The invention may help to achieve a reliable and cost effective gingival retraction treatment.

A natural anhydrous oral care composition with a limited number of naturally-derived, naturally processed, generally regarded as safe (GRAS) ingredients including an effective amount of a bioactive glass is described. The topical application of the composition to human teeth cleanses, remineralizes and reduces plaque build-up on teeth.

A medical implant comprising in combination a synthetic, biological, or autologous matrix (or scaffold) and pluripotent stem cells derived from human teeth. Stem cells are harvested from the dental pulp of extracted wisdom teeth. After the stem cells are removed, the hard tooth is ground into a base material for the manufacture of a porous matrix bone into which the stem cells can be added. Additionally, soft tissue from the harvested tooth may be used as a carrier scaffold for soft tissue applications such as meniscal or cartilage repair.

The invention discloses a two-section implant with a spontaneous expansion function. The two-section implant is applied to restoration of teeth in dental implanting surgeries. The two-section implant comprises an implant body, an abutment, a connecting screw and an expansion screw, wherein the implant body is connected with the abutment through the connecting screw and is provided with an opening and a notch groove; the expansion screw is screwed into the implant body from the opening, and a wedged slope is utilized for promoting the expansion of the notch groove to generate a tensile force so as to make fastened. The expansion screw with a thread and a taper is screwed into the implant body, and the wedged slope is utilized for promoting the expansion of the notch groove so as to generate the tensile force, so that a fastening effect is achieved, the early-stage stability of the dental implant is improved, and a missing tooth can be restored immediately; and when the appearance of the implant is in the shape of an imitation human tooth root, the damage on bones of patients can be more minimized to a greatest degree on the premise of ensuring the early-stage stability.

Thoroughly cleaning teeth daily is indispensable for keeping human teeth healthy. However, plaque is generally not sufficiently removed because it is difficult to see. Conventional plaque-dyeing agents allow plaque to be seen easily but are complicated to apply and leave traces of dyes. A toothpaste includes an integrated plaque indicator and allows plaque to be temporarily dyed. A storage container has two separate chambers, one containing toothpaste mixed with dyeing agent and the other containing toothpaste mixed with decolorizing agent. The two pastes blend when the quantity required for cleaning teeth is dispensed. Even though decolorizing begins right away, it is slow enough to obtain an intensive initial dyeing effect. The dyeing substance spreads inside the mouth during brushing and allows plaque to be easily seen and removed by the user. A decolorization rate is calculated for removing plaque within an adequate period, with all visible dye disappearing after several minutes. A self-decolorizing dyeing solution and self-decolorizing dyeing tablets for professional use are also disclosed.

The invention relates to the fields of oral medicine and biomedicine, particularly a preparation method and application of a tissue-engineering human tooth root implantation material. The preparation method of the tissue-engineering human tooth root implantation material comprises the following steps: (1) separating, culturing and identifying human root tip dental papilla stem cells; (2) constructing an NFIC lentivirus vector; (3) preparing NFIC lentivirus vector transfected root tip dental papilla stem cells, screening the overexpression NFIC cell line, and inducing the cell line in a mineralization mode; and (4) incubating the overexpression NFIC cell line subjected to mineralization induction and a hydroxyapatite/tricalcium phosphate stent material together. The preparation method is simple to operate; and the prepared tooth root implantation material has small immunoreaction, and can be applied to preparation of human tooth roots.

This invention relates to one tooth friction test machine through human tooth analogue operation to test human tooth materials and stuff property, which comprises one pair of tooth friction test unit frames set with one piece of protruding wheels for reverse beams, wherein the test unit comprises one pair of contact upper and down tooth chewing analogue structure fixed with one inclination block and one movable block on inclination and one mobile spring reset part; the upper tooth analogue structure comprises one piece of T shape cover cylinder on beam fixed with analogue long tooth and match block.

The removable veneer for teeth is a cosmetic accessory adapted to overlay the teeth. The accessory includes a veneer designed to simulate perfectly positioned human teeth. A fastener system is employed to removably attach the veneer to the existing natural teeth of a user. Various teeth adornments may be attached to the veneer, if desired, when the wearer wants to assume a more modern look.

An endodontic file (6) including a discontinuity (18) formed within the file shank (7). The discontinuity (18) creates a safe breakage point at which the file (6) will fail prior to a failure occurring at any other point along the length (11) of the file. The safe breakage point prevents the tip (21) of the file (6) from becoming irremovably embedded in a human tooth (12) after file failure. Substantially the entire length (11) of the file (6) remains connected to the tip (21) after file failure, thereby providing a considerable portion of the file which may be gripped and manipulated in order to accomplish file removal. Empirical data is presented to permit proper characterization of the region surrounding the discontinuity (18).

The invention belongs to the technical field of dental molding apparatuses, and discloses an improved complete denture maxillary blank mold tray. The blank mold tray comprises a tray base located in the middle and a tray body composed of occlusion banks on the two sides. The positions of the occlusion banks correspond to alveolar ridge crests between the first premolar tooth and the second premolar tooth on the two sides of human teeth respectively. A tray handle connected with the tray base is arranged at one end of the tray body. A plurality of overflow discharge holes are evenly formed in the tray base. The width of the occlusion banks is gradually increased from one end close to the tray handle to the other end. Three fixing grooves are formed in the occlusion banks at intervals. Whenan impression is prepared from the maxillary blank mold tray, the primary occlusion position relation can be prepared; the length and the position of the tray handle cannot interfere with the motionsof an upper lip, operability is high, a patient can hardly be interfered with, a doctor can more easily observe whether the mandible of the patient stretches forwards or not, and the patient is more easy to control.

A decorative device for human teeth consists in fixing on a vestibule surface of a tooth or vestibule surfaces of a group of teeth, some decorative element in the form of a plate, polished or colored, made of metal or plastic, thereby producing a remarkable attraction on a user's teeth. The decorative device can be applied in a permanent mode, by adhering the decorative element to a vestibule surface of the tooth, or in a removable mode by pressing specially designed frames to hold in place a decoration fixed to the vestibule surface. Microspheres arranged in frame free surfaces, can be added to a metallic structure of chromium or a similar metal.

The invention provides a tooth correction nursing device, relates to the technical field of medical treatment and solves the technical problem that existing tooth correction scaler causes severe scratch to the surface of dental implants, porcelain-laminate-veneer teeth and porcelain teeth. The tooth correction nursing device comprises a scaler body that includes a mounting shank portion and a function execution portion; the function execution portion and the mounting shank portion are fixedly connected or of integrated structure; the function execution portion is provided with a friction impact buffer layer outside; the friction impact buffer layer is made of a flexible material and can buffer friction or impact which the function execution portion bears when in contact with an external object. The tooth correction nursing device is used for alleviating the harm to human teeth, dental implants, porcelain-laminate-veneer teeth or porcelain teeth which is caused by the scaler body duringdental cleaning, nursing and correction.

The invention discloses a composite material for tooth restoration and a preparation method thereof. The composite material is prepared from the following compositions in parts by weight: polyurethane, calcium hydroxyphosphate, styrene-acrylic emulsion, polyvinylpyrrolidone, a phase-transfer agent, polyglycolic acid fiber, 2-methyl-2-propenoic acid-2-(phosphonooxy)ethyl ester, silver cyclohexanebutyrate, an anti-oxidant, steamed bone meal, zirconia, silica, casein, methoxyphenol, ethanol and double distilled water. Compared with the prior art, the technical scheme comprises the following beneficial effects: the composite material for tooth restoration can be extremely well fused with human teeth, and is high in soundness and not easy to fall off; the composite material is simple to use, free of any toxic and side effects, safe and free of health hidden trouble; and the preparation method is relatively short in flow, simple to operate, low in cost, friendly to environment and high in economic benefit.