64 results about "Dental bur" patented technology

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 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.

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 high-speed turbine dental drill handpiece has a drilling needle, a wind wheel axle, a head housing having an annular opening with a two-step profile shape, and a suckback prevention device. The suckback prevention device includes an elastic bowl-shaped axle shroud coupled to an annular skeleton that are buckled in an inner step of the head housing and an annular screw connected to the outer step of the head housing (or retaining of the elastic bowl-shaped axle shroud. An eyelet for the drilling needle is set at the center of the elastic bowl-shaped axle shroud, the diameter of the eyelet being slightly larger than that of the drilling needle.

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 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.

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.

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.