Abstract: Provided is a system for endodontic treatment of a root canal. The system includes a handpiece containing a rotary motor adapted to rotate an endodontic file secured by the handpiece. A control unit executes a regime of motion of the motor to produce a regime of file motion in which episodes of oscillation of the file are separated by a rotation of the file. When the arc of a rotation is less than the arc of the oscillation that preceded the rotation, the arcs of the episodes of oscillation overlap and the formation of ridges in the root canal is avoided.
Type:
Grant
Filed:
March 24, 2010
Date of Patent:
December 19, 2017
Assignee:
FORUM ENGINEERING TECHNOLOGIES (96) LTD.
Inventors:
Carlos Alberto Spironelli Ramos, Michael Yakoby
Abstract: Provided is a system for endodontic treatment of a root canal. The system includes a handpiece containing a rotary motor adapted to rotate an endodontic file secured by the handpiece. A control unit executes a regime of motion of the motor to produce a regime of file motion in which episodes of oscillation of the file are separated by a rotation of the file. When the arc of a rotation is less than the arc of the oscillation that preceded the rotation, the arcs of the episodes of oscillation overlap and the formation of ridges in the root canal is avoided.
Type:
Application
Filed:
March 24, 2010
Publication date:
May 17, 2012
Applicant:
FORUM ENGINEERING TECHNOLOGIES (96) LTD.
Inventors:
Carlos Alberto Spironelli Ramos, Michael Yakoby
Abstract: A device for locating an apex of a root canal of a tooth comprises a first electrode having a conductive probe with a tip adapted for insertion into the root canal, and a second electrode configured to electrically contact a patient's body. The device includes a voltage generator which provides AC test voltage signal, a AC voltage driver with an internal output impedance, and a voltage detector coupled to the electrodes to detect an AC voltage across the first and second electrodes. An electronic controller coupled to the voltage detector calculates the test scores, determines the position of the probe tip on the basis of the test score values, and informs the user of the position of the probe tip in the canal. The position of the probe tip in the root canal is indicated on a display by a marker.
Type:
Grant
Filed:
December 27, 1999
Date of Patent:
July 30, 2002
Assignee:
Forum Engineering Technologies (96) Ltd.
Inventors:
Mark Reifman, Abraham Taub, Michael Yakoby