Dentistry – Apparatus – Tool bit
Patent
1997-04-30
1998-07-14
Wilson, John J.
Dentistry
Apparatus
Tool bit
433165, A61C 306
Patent
active
057794766
ABSTRACT:
A self-limiting dental composite restoration sculpting bur particularly adapted for sculpting occlusal resins. Because of the cuspal angle of its cutting surface, the bur will make cuts that closely match the naturally occurring topography of human teeth as well as provide a visual stop that indicates when the desired cutting depth has been reached. The apparatus also includes a diamond coated cutting surface that is of such a roughness that it creates a physical stop that sends a tactile response to the operator when the bur contacts enamel. This tactile response ensures that the operator can avoid overcutting the restoration. In addition, a non-diamond coated annular band can be provided on the cutting head to create a safe zone which serves a further limit stop. The bur is mounted on a straight shaft to allow maximum vertical adjustment when mounted to a standard dental drill. The advantages include a visual depth stop, a physical stop, a shape that matches naturally occurring topography, and using a straight shaft to maximize vertical adjustability.
REFERENCES:
patent: 662538 (1900-11-01), LeCron
patent: 1548180 (1925-08-01), Brown et al.
patent: 2129843 (1938-09-01), Hollmann
patent: 2807264 (1957-09-01), Tuck
patent: 4190958 (1980-03-01), Martin et al.
patent: 4613307 (1986-09-01), Neumeyer
patent: 5261818 (1993-11-01), Shaw
Militex Laboratory and Lathe Carbon Burs; Undated Publication; Miltex Instrument Company, New York.
Militex Burnishers, Amalgam Pluggers; Undated Publication, p. 80, Militex Instrument Company, New York.
Brassler USA Dental Rotary Instruments Laboratory Wall Chart,Undated, Brasseler USA, Inc., Savannah, GA.
Turbine Assortment; Undated; Author Unknown.
Busch Burs in Tungsten Vanadium Steel, Undated, Busch Bur, Germany.
Busch Bur Catalog No. 12, Undated, Pfingst & Company, Inc., New York.
A Bur|, Journal of American Dental Association, vol. 77, no. 2, p. 435, Aug. 1968.
Roetzer Patrick
Verner Ron
O'Banion John P.
Wilson John J.
LandOfFree
Rapid adapting precision transformer for occlusal resins does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rapid adapting precision transformer for occlusal resins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid adapting precision transformer for occlusal resins will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1876049