WO2012076912A1

WO2012076912A1 - Endodontic drill

Info

Publication number: WO2012076912A1
Application number: PCT/IB2010/002953
Authority: WO
Inventors: Herman Jožef TRAVEN
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-06
Filing date: 2010-12-06
Publication date: 2012-06-14
Anticipated expiration: 2013-06-06

Abstract

Endodontic drills of this type are precise dental instruments having the flexible throat shafts so that infected tooth root canals, which are anatomically curved, can be intentionally drilled out (excavated) cleanly to the root tips. The drills rotate clockwise and are to be controlled using two hands. The drive cable rotates in protective and supportive tubes. The approximate maximum drill depth is defined at up to 35 mm. One marking tube is inserted at 20 mm (green) and the second at 25 mm (red) for orientation of the depth. The necessary width of the bores to the tooth root tips is a diameter of 1.00 mm and up.

Description

ENDODONTISCHER BOHRERCdie Bedeutung und Stand der Technik) ENDODONTIC DRILLC the meaning and state of the art)

Erfolgreiche, nicht chirurgische Eingriffe wegen Wurzelspitzen- entzündung(Dg. Granuloma apicis dentis) beruhen auf der Drainage des infizierten Wurzelkanals bis zu Wurzelspitze(Foramen apicis dentis). Die Wurzelkanäle der behandelndenen Zähnen sind häufig Successful, non-surgical procedures for root tip inflammation (Dg. Granuloma apicis dentis) are based on the drainage of the infected root canal to the root tip (foramen apicis dentis). The root canals of the treating teeth are common

anatomisch bedingt bogenförmig. In solchen Fällen ist die Erweiterung (Exkavation)eines Wurzelkanals im Bereich der Wurzelspitze mit herkömmlichen Feilen oder steifen Zahnbohrern, ungenügend. Die Folgen sind chronische Herdentzündungen nach fixprothetischen Versorgungen der befallenen Zähnen. anatomically conditioned arcuate. In such cases, the dilation (excavation) of a root canal in the area of the root tip with conventional files or rigid tooth drills is insufficient. The consequences are chronic hereditary inflammations after fixed prosthetic restorations of the affected teeth.

Endodontischer Bohrer (Bild 1, 2, 3), in betreff diese Patent - anmeldung ,ist rotierende Zahnärztliche Instrument, mit biegsamem Schafthals. Er wird doppelhaltig(bimanual) in den Wurzelkanal eingeführt und vor dem Einfuhr auf niedrige Drehzahl gebracht. Endodontic Drill (Figures 1, 2, 3), pertaining to this patent application, is a rotating dental instrument with flexible stem neck. It is introduced bimanual into the root canal and brought to low speed before import.

Der Kopf des Bohrers ist kugelförmig, bekannt als Knochenfräse. The head of the drill is spherical, known as a bur.

Ein Führungsdorn am Bohrerkopf bestimmt die Rundlaufgenauigkeit und verhindert im Betrieb seitliche Ausweichungen (by pass) aus dem Wurzelkanal. A guide pin on the drill head determines the true running accuracy and prevents lateral deviations (by pass) from the root canal during operation.

Die Antriebseil rotiert rechtsdrehend in den Stützrörchen. Winkelstück mit Versiegelungstück entschpricht dem ISO Standard. Um Bohrerkopf an die Seil Schäften zu können ist mittels Senkerosion ein Kanal von 0,30mm/0,50mm Durchmesser längs der Bohrerkopfachse gemacht. Bohrerkopf ist an die Antriebseil mittels Laser zusammengeschweisst. EINZELTEILE DES ENDODONTISCHEN BOHRERS The drive rope rotates clockwise in the Stützrörchen. Contra-angle with sealing piece complies with the ISO standard. In order to be able to shank the drill head to the rope, a channel of 0.30 mm / 0.50 mm diameter along the drill head axis is made by die erosion. Drill head is welded together to the drive cable by laser. ITEMS OF THE ENDODONTIC DRILL

ohrerkopffräse aus rostfreiem Stahl ( 0 1,00mm) und Antriebseil aus rostfreiem Stahl Stainless steel ear-cutter (0 1,00mm) and stainless steel drive cable

(0 0,45mm, Länge 37,00mm) (0 0.45mm, length 37.00mm)

Stützrörchen ( 0 0,80mm, Länge 1,20mm) Supporting slide (0 0.80mm, length 1.20mm)

(aus rostfreiem Stahl) Winkelstück mit Versiegelungstück(ISO) Fertigerzeugnis (made of stainless steel) Elbow with seal (ISO) Finished product

Bohrerkopf aus Hartmetall (0 1,40mm) Drill head made of tungsten carbide (0 1.40mm)

und Antriebseil aus rostfreiem Stahl and drive wire made of stainless steel

(0,50mm, Länge 37mm) (0,50mm, length 37mm)

Stützrörchen (00,90mm, Länge 1 ,20mm) Supporting pegs (00,90mm, length 1, 20mm)

(aus rostfreiem Stahl), 30 x (stainless steel), 30 x

Winkelstück mit Versiegelungstück(ISO) Contra-angle with sealing piece (ISO)

Fertigerzeugnis finished product

Claims

ANSCHPRÜCHE Topography of a dental drill '· Drill shank Shank neck Drill head

1. Priority claim for the patent protection of the endodontic drill urgently wants to be devoted to the flexible drill shank neck. The rope (diameter at least 0.5 mm) inserted between drill head and drill shank is right-handed drive transmission, protected from the environment with the stainless steel tubes of one Diameter 0.80 mm (or 0.90 mm) and length of 1.2 mm. The flexibility of this stem segment in the rotary motion with machine drive follows the anatomically operated curved root canals. The extension of the root canal in the area of the foramen apicis dentis is not conical thanks to this enhancer. The retention from the apical periodontal space due to sufficient extension (at least 1.00 mm) at the apex is only now satisfactorily achieved by drainage direction of the oral cavity.

2. - Claim for drill head is because this flexible extension has a feature against blocking the rotational movements. Wreath of galvanized diamond granules at the transition Between mandrel and drill head is relevant in this regard.

3.- Claim to the drill head spine which means a device without drilling function. It prevents the "ass" movements of the drill head in the bent channels.

4. -claim for the two-handed application of the drill. Rotating flexible drill shaft neck glides between the index finger / middle finger and thumb. The rotating drill shank neck can thus be kept in a smooth run without it hitting and, if necessary, sunk into depths of up to 35.0 mm.