Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7267548 | Support for interdental brushes and similar instruments for oral hygiene The present invention relates to a supporting device for an interdental cleaning means, of the type comprising a handle and a tightening head for an elongated appendix portion of said cleaning means, said tightening head comprising a central body around which a comp... | 09/11/2007 |
| 7249948 | Ergonomic dental instruments for small hands The invention provides systems and methods for ergonomic dental instruments for dental professionals with small hands. In one embodiment, a dental instrument includes an elongated metal handle having a length in the range of about 3- 7/16 inches to about 3- 15/16 in... | 07/31/2007 |
| 7238189 | ACL reconstruction technique using retrodrill Methods and apparatus for arthroscopic tenodesis using sockets in bone created by retrograde cutting. A cannulated pin is drilled through bone and into a joint space in the normal, antegrade direction, guided by a drill guide. A strand provided through the cannulate... | 07/03/2007 |
| 7100476 | Torque wrench for dental implants A manually-operated, adjustable dental implant torque wrench employs a screw holding sheath for placing a dental screw in a mouth of a patient. A handle offset to avoid opposite teeth to the work area is provided with a bevel gear and pinion set to translate the tur... | 09/05/2006 |
| 6997709 | Dental hand instrument and tip of the instrument A dental hand instrument (10), comprising a handle (11) with parts (12a, 12b) at its ends. The end of each neck part is provided with a coupling element (15) designed for the connection of replaceable tips (20)... | 02/14/2006 |
| 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 |
| 6517348 | Dental oscillating cleaning implement and method of using same A dental cleaning implement comprising: a handpiece graspable at one end by a user, an oscillating drive within the handpiece, a head located at the opposite end of the handpiece which includes a coupler for releasably attaching a toothpick or an interden... | 02/11/2003 |
| 6446640 | Dental hygiene device with easily mounted and identified dental hygiene element The present invention relates to dental hygiene devices carrying dental hygiene elements and to a method for assembling them. The dental hygiene devices have two intersecting cavities, with a dental hygiene element positioned in one cavity and a plug posi... | 09/10/2002 |
| 6439885 | Device for removing tooth stain A device for removing tooth stain comprises a handle; a first tool disposed at one end of the handle; an extension removably secured to the other end of the handle; a second tool disposed at the other end of the handle; and a second cap removably enclosin... | 08/27/2002 |
| 6371764 | Dental instrument for placing obiturator A dental instrument for gripping and placing an obturator within an opening in a tooth located in a patient's mouth when a root canal is being performed and the method for using the same. The instrument is provided with a handle that the dental profession... | 04/16/2002 |
| 6319004 | Handheld dental tool with a removable silicone tip A handheld dental tool has a removable silicone tip. The tool includes a handheld shaft having at least one working end. The working end preferably includes a shoulder defined on the working end of the shaft and a spade member extending from the shoulder.... | 11/20/2001 |
| 6231340 | Endodontic instrument The endodontic instrument disclosed herein comprises a back portion sized to be comfortably received within a user's hand, a middle portion which is smaller in cross-section than the back portion, and a threaded front portion of larger cross sectional siz... | 05/15/2001 |
| 6227853 | Magnetic coupling system and method A magnetic coupling system comprising a magnetic assembly for removably combing a base structure and a tool insert is described. This arrangement allows energy from a transducer located in the base structure to be transmitted through the magnetic assembly... | 05/08/2001 |
| 6045360 | Instrument for the medical or dental treatment of children An instrument for the medical or dental treatment of children having a treatment element with a tool at one end and a handle with a free end to which a toy element is fastened. The toy element is provided with at least one toy which is visible by the chil... | 04/04/2000 |
| 5927978 | System for placing a tooth replacement part into a patient's mouth and packaging system therefore A system for receiving a tooth replacement part and placing the tooth replacement part into a patient's mouth, with the tooth replacement part having a securing projection, includes a holder having at least one recess and an adapter having a connecting po... | 07/27/1999 |
| 5758382 | Interdental brush handle An interdental toothbrush handle for holding a twisted wire brush includes a handle with a locking retainer connected thereto by a living hinge. The handle has two opposing side walls which extend perpendicularly from the handle and are adjacent to the li... | 06/02/1998 |
| 5743737 | Dental instrument A dental instrument for performing a variety of procedures includes an elongate, rigid body and a bit. The body preferably includes an axial bore and at least one lateral bore. The axial bore holds the bit so that it extends outward along the longitudinal... | 04/28/1998 |
| 5676544 | Dental tool for periodontal cleaning and measurement of periodontal condition The present invention relates to an instrument for subgingival scaling, root planing and maintenance of periodontal health. The instrument has an elongated body with a handle portion, a terminal shank portion, a working end, and a gauge. The terminal shan... | 10/14/1997 |
| 5443471 | Quick release handle assembly A handle for use in implanting a prothesis has an elongate body portion and a post-retaining structure at the end of the body portion. The post-retaining portion or structure includes a core member which has a bore formed therein to receive a post connect... | 08/22/1995 |
| 5407358 | Vestibule cleaner A device for cleaning the vestibule of the mouth. The device includes a rounded tapered end having a bend or curve with respect to a longitudinal axis of the device. The rounded end may be rotatable with respect to a handle portion of the device. The devi... | 04/18/1995 |
| 5377703 | Dental cleansing device A dental cleansing device includes an elongated hand grip member with an internal space that has a closed end and an open end, an elongated cover member with an insert end that can be connected detachably to the open end of the hand grip member, a holding... | 01/03/1995 |
| 5347675 | Toothbrush An interdental toothbrush has a hinged locking retainer on the end of an elongated handle for capturing the stem of a twisted wire brush. The locking retainer has a hole which is adapted to receive the stem of a twisted wire brush. A land is formed in the... | 09/20/1994 |
| 5333346 | Toothbrush An interdental toothbrush has a hinged locking retainer on the end of an elongated handle. The locking retainer has a hole which is positioned relative to a groove in the handle so that a twisted wire brush may be locked into place simply by inserting it ... | 08/02/1994 |
| 5328370 | Dental tool assembly A dental tool device includes a rod, a pair of stops disposed in the rod, two protrusions formed on each of the stops, a tool having a stub engaged in the rod, and a block fixed to the stub of the tool, two cusps formed on the block, the cusps of the bloc... | 07/12/1994 |
| 5289919 | Endodontic dental kit with color-coding means A kit for assembling a variety of dental devices using a plurality of delivery tips that differ from one another as to either size or type. The kit also includes a plurality of differently sized syringes each being releasably attachable to any one of the ... | 03/01/1994 |
| 5201091 | Toothbrush An interdental toothbrush has a hinged locking retainer on the end of an elongated handle. The locking retainer has a hole which is positioned relative to a groove in the handle so that a twisted wire brush may be locked into place simply by inserting it ... | 04/13/1993 |
| 5178537 | Dental instrument A periodontal probe tip for attachment to an elongate handle includes a disposable, non-metallic probe tip device having a measuring tine with markings thereon for measurement. The tip device includes a smooth, cylindrical connecting shaft to which the ha... | 01/12/1993 |
| 5129823 | Driver tool and method for implant dentistry A tool for the installation of an abutment or screw in implant dentistry has a knob manually rotatable externally of a patient's mouth on one end of an arm and a bit, releasably secured on a sprocket, rotatable inside the patient's mouth in response to ro... | 07/14/1992 |
| 5127832 | Measuring handle for treating dental root canals A measuring handle for treating dental root canals comprises a handle in which an instrument slides longitudinally. The guide hook of the instrument engages in a helical screw rotatably mounted in the handle and is guided longitudinally in a longitudinal ... | 07/07/1992 |
| 5127415 | Multi-purpose dental applicator A multi-purpose dental applicator including a handle and an interchangeable removable member which can be a yoke supporting a length of dental floss, a toothbrush, a spiral wound wire tooth cleaning brush, a rubber tip gum massager, or a length of abrasiv... | 07/07/1992 |
| 5100321 | Dental tool A dental apparatus for cleaning teeth includes a metallic scaling element formed to receive a slender, rigid, smooth plastic sheath. The scaling element is vibrated by a sonic generator, causing its outer sheath to vibrate as well. The sheath or tip is co... | 03/31/1992 |
| 5092769 | Tensioning handle for root-canalling instruments Tensioning handle for a root-canalling instrument and comprising a grip (1) with an outside-threaded shank (2) at one end, an inside-threaded cap (3) that screws onto the shank, a bore (4) that extends axially through the shank and the cap, and a tensione... | 03/03/1992 |
| 5069621 | Dental appliance A dental appliance in which an elongated handle has a rectangular aperture at one end for removably receiving an insert with a rectangular cross section hub that has at least one elongated detent channel which is engageable with a complementary elongated ... | 12/03/1991 |
| 5028234 | Dental tool A dental tool providing a sure grip handle connected at one end or both ends to a head for inserting tool parts such as brushes, the head and brushes disposed at an angle from the longitudinal axis of the handle, the head accepting tool parts into an aper... | 07/02/1991 |
| 5027467 | Toothbrush An interdental toothbrush has a hinged cap on the end of an elongated handle. The cap has a hole which is positioned relative to a groove so that a twisted wire brush may be locked into place simply by inserting it and closing the cap.... | 07/02/1991 |
| 4780923 | Interproximal brush device having hinged brush retainer cap An interproximal brush handle including a grip portion and an end portion and a transverse hole for accommodating a stem of an interproximal brush. The brush stem is retained securely in a longitudinal groove on closure of a cap which is pivotally attache... | 11/01/1988 |
| 4738621 | Hand held dental instrument for cutting interproximal spaces A hand held abrasive dental instrument for use in cutting the proximal aspect of a tooth's surface to create an interproximal space between abutting tooth surfaces. The instrument features a thin circular disc shaped abrasive cutting member provided with ... | 04/19/1988 |
| 4624876 | Hub for a rotatable tool A central hub for a rotatable tool which can be easily a) mounted on a polygonal seat at one end of a rotatable mandrel for rotation of the tool with the mandrel and b) subsequently removed with the tool from the seat of the mandrel. A central opening ext... | 11/25/1986 |
| 4586901 | Method and instrument for condensing restorative dental materials A dental condensing instrument having an elastomeric tip of sufficient size to surround the margins of a prepared cavity, which will yieldably urge the flow of soft restorative materials inside prepared cavities to improve their adaptation to cavity walls... | 05/06/1986 |
| 4582489 | Compression handle for securing a dental root-canal instrument In a compression handle for securing a dental root-canal instrument, a helical spring (10) is positioned between the threaded end (2) of the grip (1) and the screw-on cap (3) and loosely surrounds the shaft (5) of the instrument with its coils extending i... | 04/15/1986 |