GB2035806A - Root canal file and method of manufacturing it - Google Patents

Root canal file and method of manufacturing it

Info

Publication number
GB2035806A
GB2035806A GB7942982A GB7942982A GB2035806A GB 2035806 A GB2035806 A GB 2035806A GB 7942982 A GB7942982 A GB 7942982A GB 7942982 A GB7942982 A GB 7942982A GB 2035806 A GB2035806 A GB 2035806A
Authority
GB
United Kingdom
Prior art keywords
file
root canal
grooves
displaced
relation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7942982A
Other versions
GB2035806B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB2035806A publication Critical patent/GB2035806A/en
Application granted granted Critical
Publication of GB2035806B publication Critical patent/GB2035806B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A61C5/42—Files for root canals; Handgrips or guiding means therefor

Abstract

The problem which is intended to be solved by the present invention is to provide a new type of root canal file which, on one hand, is so flexible and has so good a strength that it can be moved also down into curved root canals without being broken and which, on the other hand, has a large capacity of removing material in the root canal. This problem is solved by a root canal file with a working part having two, helically along the working part extending, continuous cutting edges (8, 10) which are displaced in relation to each other in the longitudinal direction of the working part, so that each turn of one of the cutting edge helices is situated between tow turns following after each other of the other cutting edge helix. The invention also relates to a method of manufacturing such a root canal file, two continuous, helically extending grooves (4, 6) then being grinded in the outer surface of a file blank, said grooves being displaced in relation to each other in the longitudinal direction of the file blank, so that each helix turn of one of the grooves is situated between two helix turns following after each other of the other groove and so that the outer edges of the grooves are forming two continuous, along the file blank helically extending cutting edges (8, 10) which are displaced in relation to each other in the longitudinal direction of the file blank. The root canal file is primarily intended to be used by dentists at tooth root treatments.
GB7942982A 1977-12-05 1978-11-29 Root canal file and method of manufacturing it Expired GB2035806B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7713787A SE416518B (en) 1977-12-05 1977-12-05 ROTKANALFIL

Publications (2)

Publication Number Publication Date
GB2035806A true GB2035806A (en) 1980-06-25
GB2035806B GB2035806B (en) 1982-08-25

Family

ID=20333111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7942982A Expired GB2035806B (en) 1977-12-05 1978-11-29 Root canal file and method of manufacturing it

Country Status (6)

Country Link
EP (1) EP0006956A1 (en)
JP (1) JPS5816893B2 (en)
CH (1) CH623224A5 (en)
GB (1) GB2035806B (en)
SE (1) SE416518B (en)
WO (1) WO1979000344A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602900A (en) * 1979-10-01 1986-07-29 Arpaio Jr Jerry Micro drill with modified drill point
US5735689A (en) * 1995-12-11 1998-04-07 Tycom Dental Corporation Endodontic dental instrument
US5882198A (en) * 1997-03-28 1999-03-16 Ormco Corporation Endodontic instrument having enhanced compliance at the tip
US5938440A (en) * 1995-12-11 1999-08-17 Ormco Corporation Endodontic instrument
US6419488B1 (en) 1995-12-11 2002-07-16 Ormco Corporation Endodontic instrument having a chisel tip

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538989A (en) * 1979-10-01 1985-09-03 Dentsply International, Inc. Dental reamer
US4518356A (en) * 1983-09-30 1985-05-21 Dentsply Research & Development Corp. Utrasonic dental file and method of determining failure resistant lengths thereof
JPS6077748A (en) * 1983-10-06 1985-05-02 株式会社松谷製作所 Method and apparatus for preparing dental root canal cutter
US5527205A (en) * 1991-11-05 1996-06-18 Tulsa Dental Products, L.L.C. Method of fabricating an endodontic instrument
US6299445B1 (en) * 1999-04-08 2001-10-09 Ormco Corporation Endodontic instrument, instrument blank and method of manufacture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE546245C (en) * 1932-03-12 Josef Baakes Conical reamer with two or more strongly helical cutting teeth running in the same direction
US1307446A (en) * 1919-06-24 Mathew m
DE560567C (en) * 1932-10-04 Curt Zaenker Conical rivet hole reamer with helical flutes wound in the direction of rotation, the cutting teeth of which are interrupted by chip breaking flutes
DE97809C (en) *
DE845915C (en) * 1950-03-01 1952-08-07 Wedevaags Bruks Aktiebolag Method and arrangement for producing two-flute twist drills by grinding or milling the spiral flutes
DE949002C (en) * 1952-06-24 1956-09-13 Edwin Kratzmann Tooth root canal file
FR2063374A5 (en) * 1969-10-13 1971-07-09 Micro Mega Sa

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602900A (en) * 1979-10-01 1986-07-29 Arpaio Jr Jerry Micro drill with modified drill point
US5735689A (en) * 1995-12-11 1998-04-07 Tycom Dental Corporation Endodontic dental instrument
US5902106A (en) * 1995-12-11 1999-05-11 Ormco Corporation Endodontic dental instrument
US5938440A (en) * 1995-12-11 1999-08-17 Ormco Corporation Endodontic instrument
US5980250A (en) * 1995-12-11 1999-11-09 Tycom Dental Corporation Endodontic instrument
US6419488B1 (en) 1995-12-11 2002-07-16 Ormco Corporation Endodontic instrument having a chisel tip
US5882198A (en) * 1997-03-28 1999-03-16 Ormco Corporation Endodontic instrument having enhanced compliance at the tip

Also Published As

Publication number Publication date
CH623224A5 (en) 1981-05-29
EP0006956A1 (en) 1980-01-23
WO1979000344A1 (en) 1979-06-28
SE7713787L (en) 1979-06-06
GB2035806B (en) 1982-08-25
JPS5816893B2 (en) 1983-04-02
JPS54500099A (en) 1979-12-20
SE416518B (en) 1981-01-19

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19981128