Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1995-04-17
1998-03-31
Wilson, John J.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433102, 433224, A61C 303
Patent
active
057331197
ABSTRACT:
Microsurgical drill bits for selective connection to an ultrasonic transducer head for use in dental retro-filling preparations each have a hub at one end for coupling to the transducer head, a cutting tip at the opposite end, and a shaft extending from the hub to the tip. The shaft has one or more steps in diameter at a predetermined position in its length designed for optimum vibration of the cutting tip without increasing the breakage rate above acceptable limits. The drilling tips have shafts which are angled relative to the hub and at least some have bent end portions so that the cutting tip is at an angle to the remainder of the shaft, allowing the transducer head to be held at a comfortable angle.
REFERENCES:
patent: 1067015 (1913-07-01), Fowler
patent: 3133351 (1964-05-01), Von Seggern
patent: 3703037 (1972-11-01), Robinson
patent: 4330278 (1982-05-01), Martin
patent: 5094617 (1992-03-01), Carr
patent: 5320530 (1994-06-01), Fong
Surgical Endodontics, James L. Gutmann and John W. Harrison, 1991, Blackwell Scientific Publications, Inc., pp. 222-226.
LandOfFree
Dental retro-filling drill tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dental retro-filling drill tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental retro-filling drill tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-46522