699results about "Dental tools" patented technology

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.

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.

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).

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

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.

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.

A needle assembly for an endodontic apparatus, comprising: a head for removably coupling the needle assembly to a handpiece; and a needle extending from the head at a proximal end to a distal tip, a lumen of the needle extending to an opening at the tip to deliver fluid into a root canal, wherein the needle tip is positionable within a portion of the root canal; and the lumen has a diameter to enable fluid to be delivered at a delivery pressure in excess of a threshold cavitation pressure, wherein delivery of fluid through the needle at a delivery pressure in excess of a threshold cavitation pressure into the root canal generates a backflow in the root canal that facilitates forming of a cloud of inertial cavitation within the fluid in the root canal forward of the needle tip.

The retractor (1) for gums comprises: a handle (2) having a first end (3) and a second end (4) opposite each other; a first retractor element (5) associated with the first end (3); a second retractor element (6) associated with the second end (4); wherein each retractor element (5, 6) comprises: a proximal plate-shaped portion (7) extending along a longitudinal direction (B) inclined with respect to the main direction (A); a distal portion (10) comprising two projecting appendages (11) partly bounding a central recess (12) configured to be placed astride an alveolar ridge (C) of a patient; and wherein the retractor elements (5, 6) are mounted on the handle (2) in a specular manner and configured to be placed on a right side and a left side of the alveolar ridge (C), respectively.

A system for producing a powder-gas jet for performing a dental treatment, wherein the system is configured for being connected to a dentist chair by a connection, wherein the connection of the system to the dentist chair allows the system to be fed by a pressurized gas flow, the system comprising a compressed gas circuit configured to direct the pressurized gas flow into a powder-gas-mixing chamber to form a gas-powder mixture, the system being wherein the compressed gas circuit comprises at least a pressure regulation device having an inlet and an outlet, the regulation device being configured to provide the pressurized gas flow with a pressure at its outlet that is independent of the pressure of the gas flow at its inlet, when it is fed by the pressurized gas flow.

The utility model belongs to the technical field of dentistry, and discloses an anti-rotation handle for a scanning body, which comprises a mounting part, a groove arranged on the upper surface of the mounting part, a tapered threaded hole arranged inside the mounting part, a scanning part clamped inside the groove of the mounting part, a mounting hole arranged on the upper surface of the scanning part, and a threaded hole arranged inside the mounting hole. A fastening mechanism for preventing the scanning part from rotating at the upper end of the mounting part is arranged in the mounting hole of the scanning part, the fastening mechanism is clamped and positioned in the conical threaded hole of the mounting part by rotating the fastening mechanism, and then the fastening mechanism is positioned in the scanning part through the position of the top end of the fastening mechanism. Therefore, the knob loosening of the subsequent scanning part in the use process is avoided as much as possible, and the stability of the device in the subsequent use process is improved.

The utility model relates to the technical field of oral corner protection patches, and discloses a disposable oral corner protection patch special for dental operation, which comprises an oral interior part and an oral exterior part arranged on one side of the oral interior part, and J-shaped aluminum sheets are arranged in the oral interior part and the oral exterior part. According to the disposable oral corner protection patch special for dental operation, the J-shaped aluminum sheet is completely wrapped by the medical silica gel, the effects of supporting the appearance of the medical silica gel and adjusting the thicknesses of different oral corners are achieved, the whole patch is made of the medical silica gel, the aluminum sheet is wrapped on the inner side of the patch, the high rebound resilience of the medical silica gel plays a role in buffering the oral corners, and the side face of the patch is in a half-moon arc shape. The medical polyurethane adhesive is attached to the inner side of the oral outer portion, the inner side of the oral inner portion is free of adhesive and smooth, the medical polyurethane adhesive is attached to the inner wall of the oral cavity through opening and closing of the J-shaped aluminum sheet, the outer side surfaces of the oral outer portion and the oral inner portion are rough, and slipping of instruments during operation of a doctor is prevented; the rough surface can prevent the saliva suction tube from slipping and falling off.

The scalpel comprises a first scalpel handle and a first scalpel head, the first scalpel head is detachably arranged at the front end of the first scalpel handle, a connecting insertion block is arranged at the front end of the first scalpel handle, and a step-shaped clamping groove is formed in the outward end of the connecting insertion block; the tail end of the first tool bit is provided with a connecting groove matched with the stepped clamping groove and the connecting inserting block in appearance, the front end of the first tool bit is provided with an integrally-formed extending part, the extending part is bent outwards, and the width of the end is gradually reduced to form a tip in the outward extending process of the extending part. Blades are arranged on the two side surfaces of the extension part; the extension part which is bent outwards can be suitable for narrow and irregular spaces around wisdom teeth, especially at different tooth position angles, and can be conveniently inserted into a gap between a gingiva and an alveolar bone, so that the connection between the gingiva and a dental crown neck as well as between the gingiva and an alveolar is completely cut and separated, and the end part of the extension part is a sharp end; and accurate puncture and combination of the starting point of the epithelium are facilitated, and damage to healthy tissues is reduced.

The utility model discloses a multifunctional sandblasting machine for dental department, which relates to the technical field of medical apparatus and instruments, and comprises a sandblasting machine body and a fixing shell, a lifting mechanism for conveniently storing and protecting the sandblasting machine body is arranged in the fixing shell, and a fixing mechanism for clamping and fixing the sandblasting machine body is arranged on the lifting mechanism. According to the sand blasting machine, the sand blasting machine body is placed on the supporting plate, a second twisting handle is rotated, a limiting two-way lead screw is driven to rotate, two clamping plates are driven to move close to each other, a protective pad is tightly attached to the surface of the sand blasting machine body, a first twisting handle is rotated, a connecting shaft and two worms are driven to rotate, two worm wheels are driven to rotate, and two T-shaped columns rotate synchronously; and two limiting one-way lead screws are driven to rotate, a supporting plate is driven to move downwards, the sand blasting machine body moves along with the sand blasting machine body, and four supporting columns and a shielding plate move downwards along with the sand blasting machine body, so that the sand blasting machine body is stored and protected when not used, the sand blasting machine body is convenient to carry and transfer, and the convenience is improved.

A vibration-side housing is attached to a tip of a handle-side housing, and a motor in which a plate cam is attached to a rotating shaft is housed. A vibration tube mounting opening opens at distal end part of the vibration-side housing, and a vibration tube is mounted thereon. The vibration tube is provided to vibrate in a forward-backward direction while urged in the plate cam direction via a spring with respect to the vibration-side housing. The vibration tube contacts with the plate cam via a roller at a rear end part. A reamer mounting opening opens at a tip of the vibration tube, and receives and tightly holds an insertion part of the reamer. The reamer including the bendable needle part is attachable / detachable to the vibration-side housing.

The invention provides a guide plate system for full-thickness splitting of a palate center seam and a manufacturing method of the guide plate system. The guide plate system comprises a front guide plate and a palate guide plate, the front guide plate comprises a front tooth area retention part and a front guide part, the front tooth area retention part is matched with an upper jaw front tooth area to limit the intraoperative position of the front guide plate, and the front guide part is provided with a front guide window which limits a vestibular sulcus area osteotomy line; the palate guide plate comprises a posterior tooth area fixing part and a palate guide part and limits a mucous membrane containing space, the posterior tooth area fixing part is matched with maxillary posterior teeth and part of palate mucous membrane to limit the intraoperative position of the palate guide plate, and the palate guide part is provided with a palate guide window which limits an osteotomy line of a palate center joint.

A water source (224, 324, 404) having a flexible tube (227, 327, 406) for discharging water is provided for use in conjunction with a micro-abrasive blasting device (210, 310, 402) so that water may be dispensed onto or around or in close proximity with the distal end or tip of the discharge conduit (217, 317, 403) of said device to generate a water mist for suppressing powder aeration when dental procedures such as abrasion or polishing procedures are being performed. The water source may be separate from (FIG. 3, FIG. 4) or self-contained (FIG. 2) with the micro-abrasive blasting device. An overlay water nozzle (FIG. 5) may be used to position distal ends of the flexible tube and discharge conduit in close proximity with one another.

Provided are a turbine rotor of a rotary cutting instrument and a rotary cutting instrument having a turbine rotor with which it is possible to reduce a sharp increase in the rotational speed of a turbine rotor and to suppress a reduction in cutting power due to a loss of speed when a cutting load is input during rotation of the turbine rotor. A turbine rotor (42) of an air-turbine handpiece (1) is formed of a metal having a density greater than or equal to 4.0 [g / cm3].

The utility model provides a polishing machine needle which comprises a first rod body, a second rod body is integrally arranged at one end of the first rod body, and a hollow head is integrally arranged at the other end of the first rod body. The interior of the hollow head is connected with a movable tensioning seat structure; the end part of the second rod body is connected with a processing head structure, and is characterized in that the processing head structure comprises a processing head, and a cutting blade and a polishing blade are processed on the outer wall of the processing head. According to the utility model, through the arrangement of the processing head structure, drilling and polishing can be completed at one time in the tooth treatment process, so that the operation is convenient, simple and efficient, and the injury to a patient is reduced.