954results about "Dental tools" patented technology

Dental instruments, assemblies, and components for a dental instrument are described with a two-piece tip that includes a flexible tip end and a stiff shank. Various methods of assembly are described for securing the flexible tip end to the shank including utilizing a slot in the shank and one or more pins inserted through the tip and shank, a securing material, and forming the shank with a distal portion coupled to a portion of the flexible tip end.

The invention relates to the technical field of medical equipment, in particular to a preset tooth cutting method and system based on image data, and the method comprises the following steps: S1, obtaining multi-modal image data by using CT (Computed Tomography), MRI (Magnetic Resonance Imaging) and optical scanning technologies, and carrying out consistent analysis after preprocessing; and S2, performing automatic image segmentation by using a deep convolutional neural network (CNN). S3, optimizing the implant design through a generative adversarial network (GANs); s4, simulating and optimizing a cutting path through an augmented reality (AR) environment; and S5, laser micromachining is used for surface treatment of the implant. According to the method, the dentin cutting scheme matched with the specific shape and size of the bone defect area is designed through the data generated by scanning the three-dimensional shape of the complete tooth in advance, so that the image definition and the diagnosis accuracy are improved, the preoperative analysis is more accurate, and the subsequent personalized treatment design is effectively supported.

A dental drill bit for creating a particularly shaped osteotomy in a human jawbone includes: a mounting shank and cutting head. The cutting head includes: four blades protruding away from an axis of the drill bit, each blade having a thickness and being positioned 90 degrees to each adjacent blade to form a cruciform-shaped cross-section, with two pairs of the blades each positioned 180 degrees apart. Each of the pair of blades positioned 180 degrees apart are offset laterally a distance about equal to the blade thickness, and each blade has a shaped periphery that includes: a first radiused periphery; and a second radiused periphery. The first radiused periphery is shaped to form a hemisphere frustum-shaped socket portion when rotated about the axis of the drill bit, and the second radiused periphery is shaped to form a bullet shaped socket portion when rotated about the axis of the drill bit.

The invention relates to a convenient preparation tool for palatal side free gingiva and a use method thereof, the convenient preparation tool comprises a disposable handle and a head cutting device, the disposable handle is rigidly connected with the head cutting device, the head cutting device comprises a cutting module and a collecting channel, the collecting channel is arranged behind the cutting module, and the collecting channel is connected with the disposable handle. The cutting module comprises a horizontal blade and a vertical blade, the instrument can adapt to the anatomical form of the curved surface of the palate in the cutting process through the width limiting and arc design of the horizontal blade, the width is controllable, and the influence of subjectivity of an operator on the quality of a prepared graft is reduced; through height limitation of the vertical blades on the two sides, the stable cutting depth is maintained, the thickness uniformity of the graft is remarkably improved, the edge integrity of the graft is kept, the problem that the graft is broken or too thin due to angle deviation or uneven force application in traditional operation is solved, meanwhile, accidental injuries to deep vascular nerve plexus are reduced, and the survival rate of the graft is increased. And the risk of complications such as postoperative bleeding, pain and donor healing delay is reduced.

The utility model relates to the technical field of dental instruments, in particular to a scaler capable of quickly identifying a working blade. The scaler comprises a handle part and a working end. Wherein the working end is provided with a working edge in contact with the surface of a tooth body and a non-working side opposite to the working edge; and the scraping device is provided with an identification part which is arranged corresponding to the working blade. According to the utility model, the working blade confirmation speed and accuracy of dentists and instrument sharpening personnel can be improved, the working efficiency of the dentists is improved, and unnecessary loss of instruments is avoided at the same time.

The utility model provides a bone drill, including a protective shell, a drive shaft, an inner ring cutting blade and an outer ring cutting blade; the protective shell has a containing inner cavity and a clearance gap laterally connected to the containing inner cavity, and the clearance gap also extends to the end of the protective shell; the drive shaft passes through the head end of the protective shell to extend into the containing inner cavity, the inner ring cutting blade and the outer ring cutting blade are arranged in the containing inner cavity of the protective shell and assembled on the drive shaft, the drive shaft, the inner ring cutting blade and the outer ring cutting blade are distributed in sequence from the inside to the outside and are coaxially arranged, and the inner ring cutting blade and the outer ring cutting blade are partially exposed in the clearance gap. In this way, a bone block of a set shape can be directly cut out without additional processing, and bone material is saved; at the same time, the area that does not need to be cut is blocked by the protective shell, and the protective shell can well protect the soft tissue from being scratched.

The present invention relates to an improved packaging for peptides that need to be dissolved before application, for example, self-assembling peptides such as P11-4. In particular, the present invention provides a blister packaging that can be both conveniently used and more cheaply produced than previous packaging, as well as use thereof in application of the peptide, e.g., in treatment of subsurface caries lesions.

The utility model provides a dental handpiece with a gas circuit anti-back-suction device, and belongs to the technical field of dental handpieces. Comprising a dental handpiece handle, a connecting threaded sleeve is connected to the rear end of the dental handpiece handle, a connecting base is arranged in the connecting threaded sleeve, an air inlet channel and an exhaust and back suction prevention channel are formed in the connecting base, and a back suction prevention assembly used for opening and closing the channel is arranged in the exhaust and back suction prevention channel; during normal work, the anti-back-suction assembly is opened under the action of air return in the handle of the dental handpiece, so that the exhaust and anti-back-suction channel exhausts air; and when working is stopped, the anti-back-suction assembly closes the exhaust and anti-back-suction channel so as to prevent back suction of the head of the dental handpiece. The utility model not only solves the problem that when negative pressure is generated in the inner cavity of the head of the dental handpiece, external bloodstains and dirt are sucked back into the head of the handpiece from a gap of the head, so that cross infection among patients is easily caused in the treatment process, but also enables the anti-back-suction structure to be simpler and more convenient to manufacture.

Dental treatment unit including: at least one removable handle; a removable instrument tray for depositing instruments, the instrument tray has one or more claws; a first locking mechanism for locking / unlocking the handle, in the unlocked state, the handle is removable from the dentist element; a second locking mechanism for locking / unlocking the instrument tray, in the unlocked state, the instrument tray including the claws is removable from the dentist element; a dentist element which includes a movable actuating element which can actuate the first locking mechanism to unlock the handle, and the same movable actuating element can individually actuate the second unlocking mechanism to unlock the instrument tray.

A depth stop for a drilling tool to form a hole of predetermined depth. The depth stop includes an interface portion that couples directly to the shank of the osteotome via interlocking spur and groove features. The interface has a cap flange and a tapered skirt. The underside of the cap flange establishes a reference surface for a tubular key that slides onto the tapered skirt and is held there by friction. The skirt is formed with a relief directly under the cap flange to facilitate haptic confirmation of proper connection. Elongated irrigation windows in the key expose a domed transition on the osteotome, thereby facilitating irrigation. The depth stop can be used, optionally, with an alignment jig designed with a precision guide bushing. The guide bushing is semi-cylindrical and terminates with an internal abutment step against which the lower end of the key engages at full depth.

A socket preparation tool configured to facilitate autotransplantation of a donor tooth to a recipient site is provided. The socket preparation tool includes a tooth replica of the donor tooth. A coronal portion is optionally included for facilitating alignment of the tooth replica adjacent teeth during a simulated autotransplantation. A radicular portion includes a smooth surface configured to facilitate compression of soft bone or soft tissue of the tooth replica or a contoured surface adapted for filing or cutting bone of the tooth replica. A cylindrical attachment is configured to be coupled to the tooth replica, such as via a receiver. A method of guided autotransplantation of a donor tooth via the customized socket preparation tool includes at least fitting and adjusting the socket preparation tool coupled to the tooth replica in the recipient site, before extracting the donor tooth.

Dental treatment unit (1) comprising: at least one removable handle (3); a removable instrument tray (4) for depositing instruments (5), wherein the instrument tray (4) has one or more claws (4a); a first locking mechanism (6) for locking / unlocking the handle (3) wherein, in the unlocked state, the handle (3) is removable from the dentist element (2); a second locking mechanism (7) for locking / unlocking the instrument tray (4) wherein, in the unlocked state, the instrument tray (4) including the claws (4a) is removable from the dentist element (2); a dentist element (2) which comprises a movable actuating element (8) which can actuate the first locking mechanism (6) in order to unlock the handle (3), and the same movable actuating element (8) can individually actuate the second unlocking mechanism (7) to unlock the instrument tray (4).

There is disclosed a standardized system for the preparation of an area of a tooth for fitting a dental veneer, and the subsequent installation of the dental veneer onto the tooth, in the prepared area. The system uses a grinding oscillating tip, which is specific for a prefabricated or stock veneer, the prefabricated or stock veneer corresponding to the shape of grinding tip (the tip has the shape of the prefabricated or stock veneer).

An apparatus for treating a tooth or gum tissue is disclosed. The apparatus can include a tooth cap for supporting a treatment device during a treatment procedure. The tooth cap can comprise a platform to support the treatment device. The platform can include an access port to provide a portion of the treatment device with access to a treatment region of the tooth or gum tissue. The tooth cap can also include a wall coupled with and angled relative to the platform, the wall configured to be attached to the tooth or gum tissue during treatment.

The ultrasonic scaler features closed-system water delivery and an integrated in-line electrolytic ozone generator, gas separation, in-line dissolved gas monitoring and closed-loop control of ozone concentration.

The present disclosure relates to a dental finishing strip that includes an abrasive protrusion. The disclosed device can be utilized in dental restorations of interproximal cavities. The abrasive finishing strip with abrasive protrusion can remove sharp enamel edges at the proximal surface of the tooth and assist in forming a desired beveled edge at the proximal surface. Such beveled edges are conventionally difficult to form along preparation edges associated with the proximal surface of the target tooth. A beveled margin results in an improved sealing of the composite resin to the treated tooth, which in turn can increase a composite dental filling's longevity.

The present invention concerns a surgical device made by computer-aided design and manufacturing (CAD / CAM) and its use as a surgical guide.

The utility model relates to a tooth grinding machine with a cleaning function, and relates to the technical field of grinding machines, the tooth grinding machine comprises a control box and a handle, the front end of the handle is provided with a grinding head, the handle is provided with a cleaning pipe, and one end of the cleaning pipe faces the side close to the grinding head; an adjusting assembly is arranged on the handle and used for adjusting the flushing angle, facing the grinding head, of the cleaning pipe. The position of the cleaning pipe can be adjusted, so that when an operator holds the grinding head on the handle to clean teeth, the sight is not hindered, and the grinding effect of the operator is improved.

The present invention relates to a handheld tool for separating deep-drawn dental appliances across the jaw formed from a thermoformed film, such as aligners or bite splints, and formed from a thermoformed film, characterized in that the handheld tool (1) comprises: a handle (2) for holding; a separating element (3) for thermally separating the deep-drawn thermoformed film and finishing the separated deep-drawn thermoformed parts; a heating device suitable for regulating the heating of the separating element (3) so as to increase the temperature of the thermoformed film substantially to at least its glass transition temperature; and a power supply device for supplying electrical power to the heating device.

The invention provides a laser oral cavity therapeutic instrument which comprises a therapeutic instrument body, a laser generation assembly, a water vapor nozzle assembly and a gas-liquid-electricity external connection assembly, the laser generation assembly, the water vapor nozzle assembly and the gas-liquid-electricity external connection assembly are arranged in the therapeutic instrument body, and the laser generation assembly is used for generating a high-energy laser beam; the oral cavity treatment is performed through the high-energy laser beam; the water vapor spray head assembly is used for forming water vapor spray so as to cooperatively clean or cool the oral cavity; the gas-liquid-electricity external connection assembly is used for connecting external gas, water and electric signals so as to ensure normal work of the laser oral cavity therapeutic instrument. The laser generating assembly, the steam spray head assembly and the gas-liquid-electric external connection assembly are arranged in the therapeutic instrument body, the laser generating and emitting function and the steam mixing and cooling function are integrated into one structure, the operation requirements of basic decontamination and sterilization, soft and hard tissue cutting, bone tissue removal and the like are met, and meanwhile the therapeutic instrument has the advantages of being high in integration degree, reasonable in structure, convenient to operate and the like.

The invention relates to a surgical tool (2), in particular a milling tool, for a surgical instrument, which can be driven in rotation about a longitudinal axis (4), having a tool shaft (6) and having a material-removing working head (8) at the free end of the tool shaft (6), wherein in a pole region (10) of the working head (8) facing away from the tool shaft (6) material-removing cutting edges (12) with a defined geometry for cutting are formed, and in that in a peripheral region (14) of the working head (8) outside the pole region (10) material-removing structures (16) for non-cutting grinding or sanding are formed.

A dental polishing cup includes a body that defines a cup cavity for holding a dental treatment material, with the cup having an opening at its distal end. A portion of the body includes an enhanced-flexibility band (EFB) situated circumferentially at a certain distance from the distal end, the EFB providing a lesser stiffness of the body than other portions of the body that are situated lengthwise immediately distally and immediately proximately of the EFB.

To provide a thio-urethane (meth)acrylate compound that enables imparting flexural strength to a cured product.SOLUTION: A thio-urethane (meth)acrylate compound comprising two linkages represented by formula (X), two urethane linkages, and two (meth)acryloyl groups, wherein in formula (X), the two * each indicate a bonding site.SELECTED DRAWING: None

The working tooth to be treated is prepared in the patient's mouth. A guide device is fastened onto the tooth to fix its position. A cutting device inserted into the guide device is moved, so that the flange of the cutting device slides along a slot extending within the guide device and makes contact with it, and the tool of the cutting device removes a portion of the working tooth, thereby forming the prepared surface of the working tooth. The tool includes a portion with a curved profile in the plane containing the axis of the tool, so that the working tooth is rounded by its tool portion. The cutting device and guide device are removed from the patient's mouth. A dental alignment device is fastened onto multiple teeth, including the working tooth, so that the prepared surface and the dental alignment device face each other.

Described herein is a system configured to automatically straighten a drill bit to within acceptable specifications. The drill bit straightening system described herein may include a drill bit holding assembly configured to hold the drill bit, one or more sensors configured to measure edge eccentricity of a shaft associated with the drill bit, a control unit configured to automatically control the straightening operation of the drill bit straightening system, and a drill bit pressure arm configured to straighten the drill bit by applying a force calculated based on one or more predictive models. The control unit may be configured to calculate the force(s) to be applied to the drill bit using the one or more predictive models.

The utility model discloses an oral implant positioner. The positioning base is used for being clamped on teeth, the drill bit positioning ring is used for positioning a drill bit, the base is used for being connected with the drill bit positioning ring, the adjusting mechanism is used for adjusting the angle of the drill bit positioning ring, the drill bit positioning ring is rotationally arranged on the base, the base is clamped on the positioning base, and the drill bit positioning ring is connected with the adjusting mechanism. The number of the positioning bases is two, and the two positioning bases are symmetrically distributed on the base. The adjusting device comprises a telescopic rod used for being connected with the drill bit positioning ring, a movable sleeve used for being connected with the telescopic rod, two adjusting nuts used for limiting the height of the movable sleeve and an adjusting screw rod used for being connected with the movable sleeve and the base, and the two adjusting nuts abut against the movable sleeve. The utility model can ensure that the drill bit does not shake during punching.

A dental handpiece configured to rotatably drive a dental treatment tool mounted in a chuck mechanism includes the chuck mechanism in which the dental treatment tool is mounted so as to be attachable and detachable. The chuck mechanism includes a hollow cylindrical sleeve, a cylindrical slide member, a plurality of divided movable pieces disposed in the sleeve, an elastic biasing member configured to bias the cylindrical slide member forward in an insertion direction of the dental treatment tool, and a stopper unit which restricts forward axial movement of the plurality of divided movable pieces in the insertion direction. The divided movable pieces are moved in a radial direction by relative movement between the divided movable pieces and the cylindrical slide member in the axial direction, so that fixation of the dental treatment tool and release of the fixation are performed.

The invention relates to a package for a drill. The package has a protecting portion arranged to house a cutting portion of said drill in a contact free manner and a locking portion arranged to hold a tool engaging portion of said drill. The locking portion and the protecting portion are movable relative each other and the drill is releasable from the locking portion by a movement of the locking portion relative the protecting portion. The protecting portion is allows the user to clamp the cutting portion of said drill by pressing the protecting portion and thereby establishing a contact between the protecting portion and the cutting portion of said drill. The invention also relates to a method and an arrangement.

The utility model discloses a disposable dental handpiece quick-connection electric connector, which comprises an adapter block, a terminal and an adapter seat, the adapter block is provided with a plurality of plugging holes and an electric mounting hole, and the plurality of plugging holes are used for plugging an air inlet pipe, a water inlet pipe and an atomizing pipe of a dental handpiece; the terminals are inserted into the electric mounting holes; the adapter seat is provided with an inserting groove for inserting a dental handpiece handle, the bottom of the inserting groove is provided with an air inlet groove, a water inlet groove, an atomizing groove and an electric inserting groove, the terminal is inserted into the electric inserting groove, and the adapter block is clamped at the bottom of the inserting groove. When the disposable dental handpiece is used, the terminal is inserted into the adapter block, then the adapter block is sleeved at the connecting end of the disposable dental handpiece, the adapter seat is inserted into the connecting end of the disposable dental handpiece, external electricity is conducted to a handpiece handle of the disposable dental handpiece, and the disposable dental handpiece does not need to be provided with a button battery.