59 results about "Dental bur" patented technology

A periodontal structure regeneration composition for treatment of periodontal disease is a mixture of particles of a bone growth material and free collagen. The periodontal regeneration composition is injected into the periodontal pocket through a needle. The composition may contain a thickener that increases the viscosity of the composition after the material has been injected into the periodontal pocket. The composition is available in pre-filled syringes offered in a kit that may also contain strips of surgical sponge or gauze that are sized to fit within a periodontal pocket, a tube of adhesive, a dental bur, a probe, a gauze placement tool, gauze counter and a brush for cleaning the dental bur.

The present invention relates to dental instruments including dental burs, dental discs, tapes, endodontic files, surgical drills and taps, scalers, mirrors, intra-oral light sources, handpieces, perioscopes, covers for dental instruments and other tools having anti-microbial and/or medicament coatings which may be in a substantially permanent covalent manner or in a substantially non-permanent manner. The anti-microbial coating may be made from a variety of anti-microbial substances and other appropriate constituents to promote its fixing to the surface of the dental instrument and to promote its anti-microbial activity either during use or during storage. The substrate of the instruments may also include sources of anti-microbial agents, either by embedding, filling or mixing into the substrate.

A periodontal structure regeneration composition for treatment of periodontal disease is a mixture of particles of a bone growth material and free collagen. All particles are sized to be less than 1 mm in diameter. The periodontal regeneration composition is injected into the periodontal pocket through an 18 gauge needle. The composition may contain a thickener that increases the viscosity of the composition after the material has been injected into the periodontal pocket. The composition is available in pre-filled syringes offered in a kit that may also contain strips of surgical sponge or gauze that are sized to fit within a periodontal pocket, a tube of adhesive, a dental bur, a probe, a gauze placement tool, gauze counter and a brush for cleaning the dental bur.

A method of making and using a dental tool that is recommended to be reused a certain number of times is provided with markings on the shaft of the tool that correspond in number to the number of recommended uses of the tool. A visually perceptible marking, such as paint or ink may be applied to annular recesses or to a portion of the shaft surface that is not recessed. One of the markings is removed from the shaft of the tool prior to reusing the tool. The dental tool of the present invention has a cutting element and a shaft that is provided with a plurality of deposits or indicators applied to the shaft.

A pair of dental burs for shaping mandibular teeth into the proper sloped configuration for lingual occlusion or denture teeth. The first bur is provided with a non-cutting central portion that is flanked by two slightly angled cutting surfaces, and the second bur is provided with a cutting central portion that is flanked by two slightly angled non-cutting surfaces. The angulation of the two cutting surfaces on the first bur may or may not match each other on a given set of burs, and the angulation of the two non-cutting surfaces on the second bur may or may not match each other on a given set of burs, but the angles of the cutting surfaces on the first bur match the angles of the non-cuffing surfaces on the second bur. The burs are used sequentially; i.e. the first bur is used first and the second bur is used second, to achieve the desired slope and center floss for the mandibular teeth without cutting too deeply.

A kit includes a group of predetermined components for enabling a dental hygienist or technician to perform non-invasive dental renewal procedures. The kit includes one or more abrasive devices, one or more restorative compositions, and one or more delivery tips for applying the restorative compositions. The abrasive device comprises one or more of a low-speed dental bur, a prophylaxis cup, brush, paste or jet. The kit may also include a delivery device, e.g., a syringe, or a storage device for storing the restorative composition.

The present invention is directed towards a dental bur storage device having a plurality of dental bur receiving holes capable of retaining a plurality of different dental bur types having different shank diameters, wherein, each of the plurality of dental bur receiving holes is tapered to allow a retaining fit to be established with any one of the plurality of different dental bur types having different shank diameters. The advantage of using a receiving hole that has a tapered form is that different types of dental burs having different diameters of shanks may be retained by the receiving holes in the dental bur storage device. This allows a wide range of different brands and different types of dental burs to be accommodated on one single dental bur storage device which greatly simplifies the process of selecting a dental bur for a dentist, particularly during a dental treatment. As the receiving hole is tapered, bur shanks of varying dimensions will be received to different depths within the receiving hole to a point where the receiving hole tapers to a diameter substantially equal to the diameter of the shank of the dental bur being received. Moreover, using this type of receiving hole, positive retention of a dental bur may be achieved when the dental bur storage device is handled roughly or inverted.

A dental bur includes a cutting section on one side thereof, a support section on the other side thereof and a neck section connecting the cutting section to the support section. The cutting section has a spherical shape having a predetermined radius. The cutting section is coated with diamond particles.

The invention relates to an improved bur for use in handpieces having a rotatable chuck with a tool bore for receiving the bur, a friction grip member for frictionally retaining the bur in the chuck and a torque lock seat of non-circular cross-section and permitting length adjustment of the bur in the drive head by concentrically supporting the bur in the drive head at any position from a fully inserted position to a maximum retracted position. The bur includes a tool body having an axis of rotation, a working end for projecting from the handpiece and a driven end for insertion into the tool bore of the chuck. The driven end is a generally cylindrical shaft with a preselected outer circumference for fittingly engaging in the tool bore for concentric rotation of the driven end with the chuck. The shaft including a torque lock portion for fittingly and non-rotatably engaging the torque lock seat of the chuck. The torque lock portion has at least two flat surfaces circumferentially spaced apart by intermediate cylindrical mantle portions, for providing the locking portion with a cross-section including alternating circular and straight sections and fitting into the non-circular cross-section of the torque lock seat to prevent rotation of the torque lock portion in the torque lock seat. The circular sections have the same diameter as the outer diameter of the cylindrical shaft. A total area of the flat surfaces covers at least 0.001956 square inches and the circular sections extend over at least 30% of the outer circumference of the driven end. This maintains efficient torque transfer between the chuck and the tool and ensures concentricity of the bur in the handpiece to prevent undue vibration of the bur in the handpiece.

A system of conically shaped dental burs mounted on the end of cylindrical shafts is disclosed. In one embodiment, the tip of the cone presents an abrasive surface, while the basal edge of the conical surface presents a smooth surface useful for limiting the overall penetration of the bur. This may be used for crafting grooves or fossae on dental surfaces. In an alternate embodiment the tip portion of the conical bur presents the smooth limiting surface, and the peripheral edges are abrasive, so that this bur is useful for reducing cusps or ridges. The burs are used with the axis of rotation perpendicular to the plane of the tooth. They used alternately by the dental practitioner in the detailed sculpting of dental composite fillings. The shaft portion incorporates finished shapes commonly used for either high speed or low speed bur drive systems.

A dental bur structure including a rotatable shaft turned by a motor. The shaft possesses a proximal portion having a fluted surface. The bur also possesses a distal portion with a smooth surface tip which generates heat to melt a composite post matrix upon activation of the shaft. The fluted surface removes a composite material while the smooth tip serves as a guide for the bur.

A system for performing dental surgery on a subject includes a central processing unit that controls automated operation of the system and a display that renders an image of a target tooth requiring surgical intervention. The image of a target tooth is created from an image file received from the central processing unit. An input device receives surgical instructions from a user for providing thesurgical intervention with the surgical instructions being subsequently received by the central processing unit. The surgical instructions include visual indications on the image of a target tooth that are to be treated. The system also includes a segmented dental handpiece that has a first segment attached to a second segment. The second segment is attached to a dental drill head and is movable with respect to the first segment under control of the central processing unit. The first segment can be held stationary relative to the target tooth by an operator. Characteristically, the dental drill head includes a dental burr protruding therefro7m. The system also includes a three-dimensional (3D) vision system that includes a plurality of cameras attached to the segmented dental handpiece. The plurality of cameras provides two dimensional images and/or live video of a subject's teeth to be mapped to a predetermined 3D surface scan of a surgical site thereby establishing a world coordinatesystem to which the segmented dental handpiece is registered.

The invention discloses a dental operation equipment positioning method based on image recognition and a system thereof, and the method comprises the steps: obtaining tooth image information of a target object, and carrying out the preprocessing of the image information based on a gray image; establishing a camera model, performing visual transformation according to the camera model, and projecting three-dimensional space points to a two-dimensional plane; judging whether target teeth are diseased teeth or not according to the tooth image information; establishing a tooth shape model, and determining the pixel coordinate information of the central point of the lesion area by solving the parameter information of the tooth shape model and the tooth image information; determining the coordinate information of the initial position of the dental operation according to the pixel coordinate information of the central point of the lesion area; and sending the position coordinate information to dental operation equipment, and grinding pathological tissues through a dental operation built-in dental drill.

The invention discloses a dental bur polisher which comprises an operation table. A first polishing wheel is rotationally arranged on a base on the operation table and connected with a first drive motor. A second polishing wheel is further arranged on the operation table. The second polishing wheel and the first polishing wheel are located on the same longitudinal plane. The second polishing wheel is arranged on a sliding table. The sliding table is matched and connected with guide rails on the operation table. A second drive motor for driving the second polishing wheel to rotate is further arranged on the sliding table. An air cylinder is arranged on one side of the sliding table. The end of a piston rod of the air cylinder is connected with the sliding table. The axial direction of the air cylinder is consistent with the axial direction of the guide rails. A blade used for supporting a workpiece is arranged below the first polishing wheel and is connected with the operation table through a pedestal. The bur polisher is convenient to use and high in polishing efficiency.

The invention provides a dental bur storage box, comprising a box body, wherein the box body is provided with a box cover; an upper separator plate and a lowerseparator plate are arranged in the box body to divide the box body into an upper layer, a middle layer and a lower layer; each separator plate is correspondingly provided with a plurality of insertion holes which are evenly arranged; the box body, the box cover and the two separator plates are made of stainless steel; and permanent magnets are arranged on the bottom of the box body, and the permanent magnets are correspondingly arrangedat both sides of the insertion holes in the lower separator plate or are evenly spread on the bottom of the box body. Since the permanent magnets are installed on the bottom of the dental bur storage box, when burs are inserted into the insertion holes in the upper and lower separator plates, the burs are sucked into and fixed in the box by the permanent magnets. In the process of usage, when the dental bur storage box is flipped freely, the burs in the box are not prone to scattering; in addition, the dental bur storage box made of stainless steel is hard to deform when subjected to high-temperature high-pressure sterilization.

The invention relates to a design and manufacturing method for a dentition undercut solid retention tooth preparation guide plate. The method comprises the following steps of (1) performing three-dimensional scanning on teeth and adjacent teeth which require tooth preparation; (2) designing a three-dimensional shape of each of tooth preparation bodies by using three-dimensional reverse engineeringsoftware; (3) according to the three-dimensional shape of each of the tooth preparation bodies in the step (2), designing guide grooves, capable of guiding a motion path of the dental bur all the way, on the guide plate; (4) making the complete surface of the marginal gingival and the dental crown of each adjacent tooth forward biased for 1 mm, including undercut areas serving as guide plate retention parts; (5) fusing the guide grooves and the retention parts into guide plate integral data; and (6) dividing the guide plate into a lip-cheek part and a tongue-palate part from the lip-cheek lateral boundary of an occlusal surface; and designing 3-4 implant retention structures between the two parts, and processing the 3-4 implant retention structures into entities by using a three-dimensional printer. The method can significantly improve the retention strength of an existing tooth preparation guide plate in actual application, lowers the difficulty of emplacement and reduces the size ofthe guide plate, thus being beneficial to popularization and application.

The invention provides an instant dental implant operation guiding device and a method thereof. The instant dental implant operation guiding device mainly comprises a seat body, an accommodating space, a ball body, a through hole and an adjusting piece. By means of the above structure, when a dentist puts the seat body into the tooth missing position of the mouth of a patient, fixes the seat body with the colloid and then shoots a Computed tomography, and through diagnosis and evaluation of the dentist, the adjusting piece can be controlled to drive the ball body to move in the accommodating space so as to change the angle and the position of the through hole in the ball body. Therefore, a dentist can drill a tooth implantation drill needle along a preset path formed by the through hole in the ball body, so that the actions of expanding an implantation path in a bone, implanting an implant and the like by using drill needles with different sizes subsequently are facilitated. Therefore, the effects of safe and accurate positioning, immediate and convenient positioning, time saving and cost saving are achieved, and the occurrence of tooth implantation medical disputes can be effectively reduced.

The invention discloses a dental handpiece. The outer surface of the end part where the head of the handpiece is connected with the bur is provided with an external thread, and the head of the handpiece is fixedly connected with a first safety sleeve, which is sleeved on the outside of the bur along the axial direction. , the inner surface of the first safety sleeve close to the end of the mobile phone head is provided with internal threads, the first safety sleeve and the mobile phone head are fixedly connected by threads, the first safety sleeve is connected with the second safety sleeve, and the second safety sleeve A gap is formed between the end of the axial direction and close to the mobile phone head and the first safety sleeve, and a spring is fixedly connected between the second safety sleeve and the first safety sleeve, and the spring is arranged along the axis of the second safety sleeve A plurality of springs are provided along the radial direction of the second safety sleeve, and the end of the bur away from the mobile phone head protrudes outside the second safety sleeve. The invention can improve the safety performance, effectively prevent accidental injury, and can help doctors control the drilling depth to ensure the operation effect.

The invention relates to a root canal instrument handle of rotating endodontic type, for example a bur shank, comprising at its end, intended to engage in a driving assembly of the head of a headpieceor a counter-angle, an annular groove and a flat section to engage with an additional means for axial linkage and rotating links provided in the driving assembly, a handle characterized in that it ismade up of two co-axial portions in which an internal part (3) and an external sleeve covering the internal portion at least on a portion of its length, a means being provided to fix the sleeve (2) to the external portion (3) in axial translation and rotation, in that it comprises translational and rotational blocking means to engage with a root canal instrument. To easily identify an instrument,it can be provided that for a given instrument, there is a match of a given combination of colors of the two portions of the handle.