Dentistry – Apparatus – Broach
Patent
1996-05-24
1998-12-01
Lucchesi, Nicholas D.
Dentistry
Apparatus
Broach
433224, A61C 502
Patent
active
058428615
ABSTRACT:
An endodontic system of shaping instruments, irrigation cannulas, filling instruments and materials designed to safely create specific tapers of root canal preparations and to clean, dry, seal, and restore them. The shaping instruments are a series of reamers, files, and handpiece burs, made of stainless steel, nickel-titanium, or other alloys, which impart several different specifically-tapered apertures in root canals. The instruments have one or more safety features to eliminate perforating curved roots, including shorter flute length as the angle of taper increases and variable sharpness along the length of the flute portion, as well as variable flute pitch along the length of the flute portion to maximize cutting efficiency and resistance to breakage, and a rounded tip to eliminate ledging. The hand instruments have a handle designed to optimize use of the instruments in apically directed, rotary cutting motions. The irrigation cannulas, the condensation heat carriers, pluggers, injection needles, and backfillers, and the materials, including drying paper points, filling materials, and restorative post systems, have shapes which match the canal tapers created by the shaping instruments.
REFERENCES:
patent: D250544 (1978-12-01), Leonard
patent: 251598 (1881-12-01), Johanson
patent: D283840 (1986-05-01), Matsutani
patent: 1307446 (1919-06-01), Kerr
patent: 3908270 (1975-09-01), Fishman
patent: 3919775 (1975-11-01), Malmin
patent: 4231738 (1980-11-01), Riitano et al.
patent: 4280808 (1981-07-01), Johnson et al.
patent: 4299571 (1981-11-01), McSpadden
patent: 4332561 (1982-06-01), McSpadden
patent: 4340364 (1982-07-01), Deemer
patent: 4443193 (1984-04-01), Roane
patent: 4480996 (1984-11-01), Crovatto
patent: 4518356 (1985-05-01), Green
patent: 4527560 (1985-07-01), Masreliez
patent: 4536159 (1985-08-01), Roane
patent: 4538989 (1985-09-01), Apairo, Jr. et al.
patent: 4634378 (1987-01-01), Leonard
patent: 4674979 (1987-06-01), Jacklich
patent: 4836780 (1989-06-01), Buchanan
patent: 4850867 (1989-07-01), Senia et al.
patent: 4859183 (1989-08-01), Martin
patent: 4934934 (1990-06-01), Arpaio, Jr. et al.
patent: 4971556 (1990-11-01), Ritano
patent: 5017138 (1991-05-01), Schilder
patent: 5026284 (1991-06-01), Martin
patent: 5092769 (1992-03-01), Reiter et al.
patent: 5104322 (1992-04-01), You
patent: 5125838 (1992-06-01), Seigneurin
patent: 5219284 (1993-06-01), Velvart et al.
patent: 5380200 (1995-01-01), Heath et al.
Mani Apical Reamer, Matsutani Seisakusho Co., Ltd. (four pages).
Single-Step Engine Reamer, Dental Products Report Jun., 1988, (one page).
Bissell Henry M.
Lucchesi Nicholas D.
LandOfFree
Endodontic treatment system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Endodontic treatment system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Endodontic treatment system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2390854