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| Number | Title | Issue Date |
| 7147467 | Tooth mobility measuring apparatus A tooth mobility measuring apparatus of this invention includes an impact mechanism which injects or sucks a fluid to apply an impact to a tooth, a sensor which detects the displacement state of the tooth which is moved by the impact force from the impact mechanism,... | 12/12/2006 |
| 7011520 | Two part ultrasonic swivel insert, with one part rotatable relative to the other An ultrasonic insert carries a rotary bearing adjacent to the transducer. The bearing slidably engages an ultrasonic handpiece. When seated in the handpiece, the insert is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be app... | 03/14/2006 |
| 7008225 | Tooth brusher A safe brushing is realized without sticking the gum if the bristle tips are once inserted in a pocket of a tooth by using a system having a brush of which the bristle tips automatically vibrate in a direction at right angles with the direction of length of the bris... | 03/07/2006 |
| 6955539 | Characterization of motion of dual motor oral hygiene device An oral hygiene device is disclosed having at least two motors to simultaneously vibrate and impart motion upon the head portion of the oral hygiene device, most beneficially at the tip. A first motor is positioned in the handle portion of the device to impart a fir... | 10/18/2005 |
| 6948935 | Ultrasonic dental device A device for performing endodontic procedures such as root canals by utilizing ultrasonic energy to debride the root canal space. The device includes a modified shaft assembly and a stainless steel hypodermic needle which concentrates the ultrasonic energy at the ti... | 09/27/2005 |
| 6942485 | Dental handpiece comprising torque-limiting means A dental handpiece is provided including a neck wherein balls are guided in transverse channels of an input shaft and are radially spaced apart by a support piece including a tapered part thrust by a spring. A linking ring is mounted on the end of the input shaft an... | 09/13/2005 |
| 6910887 | Device for performing an endodontic treatment A device for use in an endodontic treatment, for example for filling a root canal of a tooth that is empty as a consequence of the removal of the nerve, with a thermoplastic product such as gutta percha, which product is distributed in the root canal by means of hea... | 06/28/2005 |
| 6602073 | Medical and/or dental instrument with a pneumatic oscillatory-drive The invention relates to a medical or dental-medical treatment instrument (1) having a rod-like handpiece (2) with the forward end region of which a tool (3) can be releasably coupled by means of a tool coupling (4), and the rearward end region of which c... | 08/05/2003 |
| 6488500 | Dental handpiece In a dental handpiece with an elastically arranged reception part (8) for a tool, compressed air from angled exit nozzles (9) can be applied to a sleeve (7) allocated to the reception part (8) with radial play. The circulating movement of the sleeve (7) i... | 12/03/2002 |
| 6176703 | Medical or dental treatment instrument for chip-removing treatment of body tissue or a substitute material with an abrasive tool In a medical or dental treatment instrument (1) for chip-removing treatment of body tissue or a substitute material with an abrasive tool (7), consisting of a handpiece (2) with an oblong gripping sleeve (41), in the front end area of which a vibration pa... | 01/23/2001 |
| 6030216 | Dentistry hand piece A dentistry hand piece is provided wherein a rotation of a drive motor is converted into an oscillation of a receiving part for a dentistry tool. The conversion of the rotation into the oscillation takes place in an attachment head (3) of the hand piece. ... | 02/29/2000 |
| 5938441 | Air driven low speed dental handpiece motors Air driven dental handpiece motors include a tubular housing and a rotor rotatably supported within the housing. One motor is geared down by the provision of a plurality of idler gears rotatably supported on a hub which rotates between a sun gear on the o... | 08/17/1999 |
| 5846077 | Dental scaler and vibratory transducer therefor An air-driven dental scaler has a scaling tool vibrated at a high frequency and low amplitude by a vibratory transducer having a ball within a chamber, a race in the chamber, and air inlets and air outlets arranged for admitting air under pressure into th... | 12/08/1998 |
| 5779473 | Dental scaler and vibratory transducer therefor An air-driven dental scaler has a scaling tool vibrated at a high frequency and low amplitude by a vibratory transducer having a ball within a chamber, and air inlets and air outlets arranged for admitting air under pressure into the chamber and directing... | 07/14/1998 |
| 5545038 | Percussive dental extractor A pneumatically operated percussive dental extractor includes a main body having a central longitudinal chamber. A replaceable hook member is attached to the distal end of the main body. Mounted in the longitudinal chamber at a proximal end thereof is an ... | 08/13/1996 |
| 5496172 | Pneumatic remover for use in removing dental prosthetics A pneumatic remover assembly having a central housing with a reciprocating internal mass and spring, a first end unit having a spool-type valve for activating the remover, a second end unit having various conduits disposed therein for introducing and exha... | 03/05/1996 |
| 5476380 | Dental handpiece A dental handpiece includes an end grip member gripped by an operator during use. The end grip member has a first end to be connected to an air supply and a second end on which is selectively detachably mounted a tool holder supporting a tool that is driv... | 12/19/1995 |
| 5314333 | Device for generating oscillations for dental applications A device for generating oscillations for dental applications has an actuator connectable to an energy source and provided with a lifting member. The actuator is connected via a hydraulic linkage to the working device. Via the hydraulic linkage the oscilla... | 05/24/1994 |
| 5232363 | Scaler with improved vibration characteristics A dental scaler comprises an elongated housing having a forward end at which a dental scaling tool is removably connectable, and a rearward end for connection to a source of pressure working fluid. A substantially rigid elongated tubular member is resilie... | 08/03/1993 |
| 5190456 | Air-driven dental scaler An air-driven dental scaler (10) having a scaler tip (78) oscillated by an air-driven vibrator (22) of the class wherein a disk-like rotor (40) is rotated within a disk-shaped chamber (38) to impart vibration to a vibrator body (26). In order to suppress ... | 03/02/1993 |
| 5133661 | Dentistry handpiece able to receive one of a number of vibrating instruments A dental handpiece which can receive one of a number of vibrating instruments for applications in endodontics or periodontal treatment includes an elongate handpiece for defining a body enclosing a non-rotating axle excited mechanically in vibration, moun... | 07/28/1992 |
| 4878841 | Periodontal probe A method and apparatus for determining the attachment point of tissue to a tooth are provided. The apparatus comprises a body for insertion into the mouth which includes a datum surface for engagement with a location on a tooth. A probe is also provided o... | 11/07/1989 |
| 4764114 | Analysis system Periodontal analysis apparatus includes a probe member having a tip, a probe housing having a guide channel in which the probe member is disposed for reciprocating movement with the tip of the probe member extending from the channel, force applying means ... | 08/16/1988 |
| 4725233 | Device for removing crowns, bridges, and similar structures from the stumps of teeth A device for removing crowns, bridges, or similar structures from the stumps (5) of teeth by breaking up the cement that secures them and having an extraction frame (3) with two mutually opposed jaws (4) that engage the vicinity of the crown (6), bridge, ... | 02/16/1988 |
| 4589847 | Tartar-removing dental handpiece A tartar-removing dental handpiece, consisting of an elongated gripping sleeve on which there is arranged a vibration generator, which is connected to a vibratable tartar-removing instrument arranged at one end of the gripping sleeve for transmitting vibr... | 05/20/1986 |
| 4578033 | Tartar-removing dental handpiece A tartar-removing dental handpiece, constituted of an elongated gripping sleeve having a vibration generator arranged therein which is connected with a vibratable tartar-removing instrument located at one end of the gripping sleeve for transmission of vib... | 03/25/1986 |
| 4527977 | Gas-driven dental scaler having torque reaction means A gas-driven dental scaling instrument having a resiliently mounted vibratable tube-and-rotor vibrating mechanism is disclosed, which instrument includes torque reaction means to oppose twisting forces applied to the vibratable tube supported on its resil... | 07/09/1985 |
| 4484893 | Air turbine handpiece for dental scaling and other applications An oscillatory handpiece for a tool bit includes a housing having therewith fluid driven turbine rotor having an eccentric connection to an oscillatable rod which is effectively supported only at the point of its eccentric connection. The handpiece also i... | 11/27/1984 |
| 4484892 | Hand-held pneumatic implement for removing dental scale A hand-held implement for removing dental scale provided with a rigid shaft to which is applied vibrations in a rotational or circumferential direction by a dynamically unbalanced air driven turbine. The rotor of the turbine is coupled to the shaft by a b... | 11/27/1984 |
| 4453919 | Dental scaler An air-driven dental scaler is provided with a vibrator assembly which comprises a rigid vibrator body having an inner disk-like chamber in which a disk-like rotor is received with a small gap between it and the chamber. The vibrator body is provided with... | 06/12/1984 |
| 4427384 | Vibratory dental scaler A dental scaler in which a scaling tool is coupled to a relatively rigid inner tubular member supported within an outer housing for vibration in response to relatively high speed rotation of a thin-walled tubular element located within an inner chamber in... | 01/24/1984 |
| 4320927 | Dental drill with magnetic air turbine having magnetic bearings In a preferred embodiment, a magnetic air turbine dental drill having bearing function is achieved by spaced-apart annular magnets having therebetween in spaced-apart relationship an intermediate annular third magnet with the magnetic poles of the three m... | 03/23/1982 |
| 4260380 | Vibratory device with fluid transport means An air-driven dental scaler is disclosed having water transport means for delivering water to a scaling type work tool. The water transport means comprises a tube coaxially disposed within a vibratable hollow shaft. The water tube is supported at one end ... | 04/07/1981 |
| 4173072 | Dental crown remover A dental crown or bridge remover comprising crown or bridge gripping means, and a power actuated linear ram attached thereto, having a drive means arranged to permit gentle and gradual dislodgement or separation of the crown or bridge from the underlying ... | 11/06/1979 |
| 4171571 | Dental handpieces A dental handpiece has a rotor with pistons in longitudinal bores, the pistons being displaced by air pressure and engaging against a swash plate to cause the rotor to rotate. The direction and speed of rotation is controlled by an air distributor member ... | 10/23/1979 |
| 4040311 | Dental handpiece A straight dental handpiece comprising a pair of telescoping housing barrels which can normally swivel relative to each other, one containing a chuck and the other containing a vane type air motor. A change speed transmission is entrained between the moto... | 08/09/1977 |
