64 results about "Dental bur" patented technology

A method, system, device and an artificial tooth is disclosed for simulating both pain and anesthesia in a model of jaws. The tooth is equipped with sensors and connected to a data processing unit, memory unit and audiovisual display unit. The system is for teaching and practicing in the field of dentistry according to which removing artificial tooth or artificial bone substances by a dental drill, generates signals of pseudo pain with different intensities. Signals are fed to the data processing unit which simulates perception of the simulated pain and accordingly to said audio-visual display unit which simulates reaction to the different intensities of generated pseudo pain signals by playing different sounds which are stored in said memory unit. Furthermore, the system is able to simulate anesthesia by generating block signals as a result of applying different anesthetic techniques by means of a dental syringe connected to the system.

A dental drill system and method for drilling a socket to a predetermined depth and diameter which is sized to receive an implant includes a first drill bit with a first bit diameter, a second drill bit with a second bit diameter, wherein the second bit diameter is greater than the first bit diameter. A stop collar is provided which includes a body with a first bore formed through the body. The first bore is adapted to receive the first drill bit. A second bore is formed coaxial with the first bore and extends a portion less than an entire length of the body, wherein the second bore is greater than the first bore and adapted to receive the second drill bit.

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.

The present invention relates to dental instruments used in tooth restoration and replacement including dental burs, dental discs, tapes, endodontic files, surgical drills and taps, having abrading working surfaces coated or embedded with diamond particles or chips onto the substrate or shank, the abrading surfaces having a flexible diamond-like carbon (DLC) coating. The substrate may be flexible or the shank may be made of a relatively hard substrate and diamond particles or chips may be coated or embedded onto the substrate or shank through the use of polymeric bonding agents, through embedding in a nickel or nickel alloy matrix, or through chemical vapor deposition, or even direct coating if polymeric substrates are used. The abrading surface may also be formed through the formation of cutting edges or surfaces on the substrate. The present invention further relates to a dental tip, which may be part of an ultrasonic dental insert may be made of a metallic or polymeric substrate which is coated with a flexible and durable coating. The coated tip is bent or can be bent to a desired configuration. The coating is made of a diamond-like-carbon (DLC) coating having at least about 5 atomic percent of hydrogen. The coated abrading surfaces or tips are longer lasting than uncoated surfaces and the coating may also serve as a wear indicator. Further, the coating is present on the surface of the bur or tip during use without obstructing the abrasive function of the dental instruments.

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 invention relates to an improved dental tool drive arrangement for a handpiece with a drive head, the tool drive arrangement permitting length adjustment of the tool in the drive head by concentrically supporting the tool in the drive head at any position from a fully inserted position to a maximum retracted position. The tool drive arrangement preferably includes a tool and a rotatable tool supporting element for concentrically supporting the tool from the fully inserted to the maximum retracted position, the tool preferably including a maximum retraction indicator for indicating to a user when the tool has been retracted to the maximum retraction position. This provides a significant advantage over the prior art by allowing a user to adjust the exposed length of a rotatable tool, preferably a dental bur, without exceeding safe operating limits. The invention also relates to an improved drive spindle which allows depth adjustment of a tool in a dental handpiece while maintaining efficient torque transfer and concentricity during high speed rotation.

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 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 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.

Dental implants including radiopaque markers provided therein or thereon. The implant may also include customizable length characteristics. For example, a kit may include implants with different diameters (e.g., 3 diameters), where all of the implants are of a single (e.g., long) length. The appropriate diameter implant may be selected from the kit by the practitioner, and the long length implant may be cut (e.g., with a dental drill) to the appropriate length needed. The implants include radiopaque markers on or within the implant. For example, three series of markers may be provided on different “faces” of the implant, so that the three series of markers serve as reference points when scanning, allowing triangulation of the exact position of the implant in relation to the surrounding hard and soft oral tissues.

In one embodiment, a dental bur includes a proximal shank, an intermediate cutting section, and a smooth, rounded distal tip. The cutting section includes (i) a frustum-shaped portion connected at its larger-diameter end to the shank and (ii) a curved portion that provides a transition between the smaller-diameter end of the frustum-shaped portion and the rounded tip, where the outer surfaces of the frustum-shaped portion and the curved portion are both sufficiently abrasive to remove bone tissue due to the presence of surface grit and / or flutes that provide bone-cutting edges. The dental bur reduces and flattens the bone tissue of the maxillary and mandibular bones for surgical dental implants without unwanted soft tissue damage.

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.

The present invention relates to a method, system (50), device and an artificial tooth for simulating both pain and anesthesia in a model of jaws, and the tooth is equipped with sensors (56, 57) and connected to a data processing unit (58), memory unit (59) and audiovisual display unit (60). The system (50) is used for the purpose of teaching and practicing in the field of dentistry according to which removing artificial tooth (49) or artificial bone (43, 44) substances by a dental drill (31), generates signals of pseudo pain (62) with different intensities. Signals are fed to the data processing unit (58) which simulates perception of the simulated pain and accordingly to said audio-visual display unit which simulates reaction to the different intensities of generated pseudo pain signals by playing different sounds (64) which are stored in said memory unit. Furthermore, the system is able to simulate anesthesia by generating block signals (68) as a result of applying different anesthetic techniques by means of a dental syringe (33) connected to the system.

Dental implants including radiopaque markers provided therein or thereon. The implant may also include customizable length characteristics. For example, a kit may include implants with different diameters (e.g., 3 diameters), where all of the implants are of a single (e.g., long) length. The appropriate diameter implant may be selected from the kit by the practitioner, and the long length implant may be cut (e.g., with a dental drill) to the appropriate length needed. The implants include radiopaque markers on or within the implant. For example, three series of markers may be provided on different “faces” of the implant, so that the three series of markers serve as reference points when scanning, allowing triangulation of the exact position of the implant in relation to the surrounding hard and soft oral tissues.

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 relates to an improved dental tool drive arrangement for a hand-piece with a drive head, the tool drive arrangement permitting length adjustment of the tool in the drive head by concentrically supporting the tool in the drive head at any position from a fully inserted position to a maximum retracted position. The tool drive arrangement preferably includes a tool and a rotatable tool supporting element for concentrically supporting the tool from the fully inserted to the maximum retracted position, the tool preferably including a maximum retraction indicator for indicating to a user when the tool has been retracted to the maximum retraction position. This provides a significant advantage over the prior art by allowing a user to adjust the exposed length of a rotatable tool, preferably a dental bur, without exceeding safe operating limits. The invention also relates to an improved drive spindle which allows depth adjustment of a tool in a dental handpiece while maintaining efficient torque transfer and concentricity during high speed rotation.

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 discloses a sanitary dental bur and a manufacturing method of the sanitary dental bur. The sanitary dental bur is made of a tungsten steel material, and the tungsten steel material is prepared from, by weight percentage, 8-12% of cobalt, 0.2-0.4% of cromium carbide, 0.3-0.5% of vanadium carbide and / or tantalum carbide and the balance tungsten carbide. The sanitary dental bur has thehigh rockwell hardness and bending strength, the surface hardness of the bur is high, the concentricity is extremely high, no oscillating exists, the rotation is stable, the cutting speed is high, thegenerated heat is small, the damage to the dental pulp and tooth tissue is lowered, the labor intensity of dentists is lowered, and the comfort and satisfaction of patients are improved effectively.The sanitary dental bur cuts a tooth body, and after the preparation of a hole shape, the surface of the tooth body is smooth without scratches. In addition, the sanitary dental bur is low in production cost and suitable for effectively promoting the popularization of the idea of one person and one special bur in outpatient clinics of the dentists, and the cross-infection problem is effectively solved.

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.