Class 433/153 - Having relatively movable work engaging surfaces

Subclass of Class 433 - Dentistry
Definition: Apparatus including a plurality members, each having a work
No. of patents: 25
Last issue date: 05/06/2008

Number	Title	Issue Date
7367804	Endodontic instrument extractor tool manufactured from a shape memory material and related kits and methods An endodontic instrument extractor tool is configured for removing a fragment of a broken endodontic instrument that has become lodged within a root canal of a tooth. The extractor tool comprises an elongate shaft, including a hollow gripping body at a distal end, a...	05/06/2008
7303395	Device for the removal of teeth A divice for the removal of teeth and/or tooth roots from a tooth socket or from a jawbone includes an extractor having a fisrt and second lever and a first and second branch pivotably connected to each other by a hinge, the first branch including a receiving part. ...	12/04/2007
7284983	Matrix band retainer A matrix band retainer for dental restoration has a unitary member of a stiff planar spring material. The unitary member has an open ring substantially in a first plane, with the plane of the material of the ring perpendicular to the first plane. A tine at each end ...	10/23/2007
7211079	Ringed forceps A surgical instrument comprises two oppositely-positioned working numbers each having proximal and distal ends and each having a working surface. The instrument also comprises at least one ring member affixed to a least one of the working members to encompass one or...	05/01/2007
7175432	Dental contact matrix limited A dental contact matrix system is described for the placement of dental fillings. The dental contact matrix system includes a matrix, a retainer for placing and retaining the 5 matrix and an elastic wedge. The retainer includes two lugs or tines that fit between two...	02/13/2007
7128571	Orthodontic tool A band seating tool is disclosed. The tool comprises a pair of curved claws for applying force to opposed sides of an orthodontic band. At least one of the claws may be translationally and/or pivotally moveable, such that the separation distance between the claws ca...	10/31/2006
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
7025592	Bone-dislocating device A bone-dislocating device suitable for being inserted in a bone to be dislocated (16), in particular a maxillary or jaw bone, comprises a wedged body (12), subdivided into two parts (12a and 12b) substantially having a trian...	04/11/2006
6652277	Dentist's matrix contact instrument A hand operated dentist's instrument having two adjacent tines that spread apart when the instrument handles are squeezed. The tines are used to press against a matrix band surrounding a molar and press the matrix band and adjacent teeth away from a centr...	11/25/2003
6589053	Low profile matrix band retainers The invention comprises improved matrix band retainers for use in dental procedures. The matrix band retainers comprise a pair of tines anatomically configured to be inserted into the interproximal spaces between adjacent teeth for holding a matrix band i...	07/08/2003
6261095	Dental tool for tooth restoration jIn restoration of teeth, the use of conventional matrix bands and wedges tends to leave gaps or spaces which can through inefficient restoration lead to fracture or infection, and also prove to be time consuming and inefficient. This invention addresses ...	07/17/2001
5755573	Dental post extractor A dental post extractor which includes a main body having a fixed jaw against which a second movable jaw is urged to grasp a dental post. The main body also includes a fixed handle against which a second movable handle may be urged, creating lateral movem...	05/26/1998
5599186	Implement for extracting dental bridges and the like An implement for extraction of bridges from the mouth of dental patients has a flexible wire engageable with a bridge at a distance from the edge of the bridge and at a distance from the gums of the patient, and a force applying unit which can pull the wi...	02/04/1997
5411396	Method of and implement for extraction of dental prostheses A prosthesis which is affixed to at least one tooth can be extracted from the mouth of a patient by an implement employing two discrete substantially disc-shaped jaws which are to be bonded to spaced-apart portions of the external surface of the prosthesi...	05/02/1995
5385471	Cerec inlay holder and inserter A dental instrument comprising a grasping device in the form of a tweezer member having a finger receiving ring detachably connected to one of the legs of the tweezer member is disclosed. The instrument is used for holding and inserting a Cerec inlay, man...	01/31/1995
5197877	Implement for extracting dental crowns, bridges and the like An implement for extraction of crowns or bridges from the mouths of dental patients has one or more pairs of jaws and/or one or more hooks or a flexible wire engageable with a crown or bridge at a distance from the edge of the crown or bridge and at a dis...	03/30/1993
5197878	Clamp for removing a dental prosthetic A two prong clamp is adjustably attachable to a dental prosthetic device with compressible resilient inserts to securely grip and retain the dental prosthetic device without causing damage while a force is applied to the clamp sufficient to dislodge and r...	03/30/1993
5181849	Articulating paper holder The present invention comprises an articulating paper holder which has an elongated handle and an elongated holding arm. The holding arm is securely attached to and extends from the handle. The holding arm includes a holding means for securely holding a p...	01/26/1993
5015185	Device for extracting dental prostheses, crowns and the like The device for extracting dental crowns has two levers, each having a handgrip and a jaw. The levers are pivotally connected so that the jaws are moved apart by moving the handgrips closer together. A body is articulated to one of the jaws and guided in a...	05/14/1991
4923399	Dental instrument The present invention provides a dental instrument for attachment to a tooth providing a stable support for the use of other dental instruments such as those used to remove crowns. The instrument comprises a pair of arms, pivotably joined, each arm having...	05/08/1990
4884581	Oral hygiene tongue holder It is often necessary to manipulate or extend a tongue in order to perform an operation on the tongue or inside the mouth. The apparatus and method claimed provide non-slip surfaces which are attached to a user's finger and thumb, and which are maintained...	12/05/1989
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
4230454	Tooth extractor A dentistry kit for tooth extraction consisting of a vise-type grip member having a joint member engaged by a forked end of a lever whose convexly curved fulcrum surface rests against a planar base plate located on teeth adjacent to the extracted tooth. T...	10/28/1980
4202103	Matrix band guide and matrix retainer device A matrix band guide for use in simultaneously applying a matrix band to a plurality of teeth. The guide is a flexible elongated member having a plurality of slots. The elongated member is of sufficient length and of sufficient width to allow placement of ...	05/13/1980
4196520	Method of removing a crown from a tooth Instead of prying the crown in the direction opposite to the direction in which it was forced onto its cooperating support tooth, the within crown-removal method calls for initially preparing the crown with a vertically oriented cleave, and then projectin...	04/08/1980

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Class 433/153 - Having relatively movable work engaging surfaces