EP2440151A1 - Fraise de forme et son utilisation - Google Patents

Fraise de forme et son utilisation

Info

Publication number
EP2440151A1
EP2440151A1 EP10722646A EP10722646A EP2440151A1 EP 2440151 A1 EP2440151 A1 EP 2440151A1 EP 10722646 A EP10722646 A EP 10722646A EP 10722646 A EP10722646 A EP 10722646A EP 2440151 A1 EP2440151 A1 EP 2440151A1
Authority
EP
European Patent Office
Prior art keywords
cutter
clamping shaft
cutter according
cutter head
designed
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.)
Withdrawn
Application number
EP10722646A
Other languages
German (de)
English (en)
Inventor
Hugo Spicher
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.)
Universitaet Bern
Original Assignee
Universitaet Bern
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 Universitaet Bern filed Critical Universitaet Bern
Priority to EP10722646A priority Critical patent/EP2440151A1/fr
Publication of EP2440151A1 publication Critical patent/EP2440151A1/fr
Withdrawn legal-status Critical Current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
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/02—Tools for manipulating or working with an orthodontic appliance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine

Definitions

  • the invention relates to a form milling cutter according to the preamble of claim 1 and a use thereof.
  • a generic form milling cutter is known, for example, from EP 1 623 678 A2.
  • the form cutter described therein is provided in particular for adaptation processing on an orthodontic appliance.
  • orthodontic appliances such as bites
  • a base made of plastic and inserted therein, i. polymerized archwires and rod wires. These wires are used to hold the orthodontic appliance on the upper or lower jaw, make a tooth position correction or to hold other units.
  • the devices are made according to a so-called imprint made in the patient's mouth and a resulting jaw model made of gypsum.
  • the basic body In the production process, in particular in the dental laboratory, the basic body has to be reworked after polymerization, starting from the jaw model in which the steel wires are polymerized in order to achieve a precise fit in the patient's mouth. Under certain circumstances, a fine adjustment must also be made to the dentist.
  • the finished orthodontic appliance has a plastic plate adapted by milling followed by polishing, from which polymerized steel elements protrude. These adaptation works are u.a. made by milling plastic material on the body. These adjustments in the laboratory or in the dentist's work, which holds the orthodontic appliance only in the hand and not in a fixed tension, may cause the dentist or the laboratory worker to injure one of the polymerized wires, thereby increasing its stability affect
  • BESTATIGUNGSKOPIE can be accused. Often then the damaged steel elements must be replaced, which is complex and often only by a renewed production of the entire apparatus is possible.
  • EP 1 623 678 A2 it is proposed to use as a milling material a hardened steel whose Brinell hardness is approximately HB 350 ⁇ HB 20 (Rockwell hardness 34 ⁇ 5) and, in particular, between HB 323 and HB 345 (Rockwell hardness approximately between 33 and 35) , This is intended to ensure a good rate of plastic removal without noticeable heating of the plastic with a long service life of the milling cutter and, in the event of unforeseen touching of the milling cutters with one of the steel elements of the orthodontic appliance, no noticeable abrasion on the steel elements.
  • the object of the invention is to provide an improved form milling cutter, which is particularly widely used and easy to manufacture. Another object of the invention is to provide a method of using the form milling cutter.
  • the milling cutter is suitable for adaptation machining on an orthodontic appliance with a plastic base body and steel elements protruding therefrom.
  • the shaping cutter according to the invention can be produced from a blank, for example from a thin rod of the hard plastic used by conventional machining technology.
  • the form cutter can be preformed by a sintering process and brought into the desired shape by mechanical aftertreatment.
  • the hard plastic preferably has a Rockwell hardness of about 45 to 60.
  • Particularly suitable as a hard plastic are polyimides.
  • Vespel ® SP1 is made.
  • the cutter head is designed as a pyramid aligned coaxially with the clamping shaft.
  • the cutter head is designed as a coaxially aligned with the clamping shaft, provided with a plurality of projecting longitudinal edges cylinder or as coaxial with the clamping shaft aligned, provided with a plurality of projecting longitudinal edges cone.
  • Fig. 1 shows a first embodiment of the form cutter, in a lateral view
  • Fig. 2 shows the form cutter of Figure 1, in plan view.
  • Fig. 3 shows a second embodiment of the form cutter, in a lateral view;
  • Fig. 4 shows the form cutter of Figure 3, in plan view.
  • FIG. 5 shows a third embodiment of the form milling cutter, in a lateral view
  • Fig. 6 shows the form cutter of Fig. 5, in plan view.
  • the shaping cutters shown in FIGS. 1 to 6 each have a clamping shaft 2 and a cutter head 4 arranged coaxially therewith.
  • cutters are integrally formed of Vespel ® SP1.
  • Vespel ® is a condensation polyimide consisting Pyromellitdian- anhydride (PMDA) and 4,4-Diamiondiphenylether (ODA) is prepared.
  • PMDA Pyromellitdian- anhydride
  • ODA 4,4-Diamiondiphenylether
  • Vespel ® is available in several subtypes from DuPont and their distributors.
  • As a milling material for orthodontic adjustment machining, Vespel ® SP1 has proven to be particularly advantageous.
  • the specified Rockwell hardness is according to the manufacturer in the range of about 45 to 60.
  • the cutter head is designed as a quadrangular pyramid 6 aligned coaxially with the clamping shaft.
  • the pyramid has a full opening angle of about 22 ° and an axial length of about 15 mm.
  • a cylindrical base with a diameter of about 5 mm is formed between the pyramid-shaped cutter head and the clamping shaft.
  • the cutter head is designed as a cylinder 8 aligned coaxially with the clamping shaft and provided with ten projecting longitudinal edges.
  • the axial length of the cylinder is about 10 mm and its diameter is about 5 mm.
  • the cutter head is designed as a cone 10 oriented coaxially with the clamping shaft and provided with ten projecting longitudinal edges.
  • the axial length of the cylinder is about 10.5 mm and its diameter is about 5 mm.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne une fraise de forme, prévue pour un façonnage d'adaptation sur un appareil orthodontique, présentant une tige de fixation (2) et une tête de fraise (4) disposée coaxialement à cette tige. Au moins la tête de fraise est constituée par une matière plastique dure.
EP10722646A 2009-06-12 2010-06-08 Fraise de forme et son utilisation Withdrawn EP2440151A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10722646A EP2440151A1 (fr) 2009-06-12 2010-06-08 Fraise de forme et son utilisation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09007763 2009-06-12
PCT/EP2010/003419 WO2010142412A1 (fr) 2009-06-12 2010-06-08 Fraise de forme et son utilisation
EP10722646A EP2440151A1 (fr) 2009-06-12 2010-06-08 Fraise de forme et son utilisation

Publications (1)

Publication Number Publication Date
EP2440151A1 true EP2440151A1 (fr) 2012-04-18

Family

ID=42697478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722646A Withdrawn EP2440151A1 (fr) 2009-06-12 2010-06-08 Fraise de forme et son utilisation

Country Status (2)

Country Link
EP (1) EP2440151A1 (fr)
WO (1) WO2010142412A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014203453B4 (de) * 2014-02-26 2024-05-16 Gebr. Brasseler Gmbh & Co. Kg Dentalinstrument

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103349A1 (de) * 1981-01-31 1982-08-12 Rolf 6906 Leimen Scharsach "werkzeugsatz fuer die bearbeitung kieferorthopaedischer regulierungsspangen"
GB9214280D0 (en) * 1992-07-04 1992-08-19 Gwilliam Douglas G Improvements relating to tools for dental work
JP2003088536A (ja) * 2001-09-20 2003-03-25 Gc Corp 歯科用切削バー
EP1623678A3 (fr) 2004-08-05 2006-05-24 Moecke, Jens Méthode pour l' ajustage d'un dispositif orthodontique par moyen d'un outil de forage, outil de forage ainsi que sa méthode de fabrication
DE102008010049B3 (de) * 2008-02-20 2009-01-02 Gebr. Brasseler Gmbh & Co. Kg Dentalbohrer aus Kunststoff

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010142412A1 *

Also Published As

Publication number Publication date
WO2010142412A1 (fr) 2010-12-16

Similar Documents

Publication Publication Date Title
EP2945563B1 (fr) Procédé de fabrication d'un élément d'ancrage
EP2509532B1 (fr) Implant dentaire
DE102014105189B4 (de) Vorgeformter Prothesenbasisrohling
EP2967769B1 (fr) Ébauche à fraiser pour une butée
EP3067013B1 (fr) Dispositif de support pour ebauches dentaires
WO2009101109A1 (fr) Pilier à incrustation pour implant dentaire
EP3122271B1 (fr) Procédé de fabrication d'un implant pour l'ostéosynthèse et clou orthopédique
DE69102256T2 (de) Vorrichtung für die Rekonstruktion einer ECK-Zone eines Zahns.
DE102006021476B3 (de) Magnetisches Abdrucksystem
EP2974689B1 (fr) Systeme de frittage d'une piece dentaire
EP3852677B1 (fr) Demi-produit pour la fabrication de dents prothétiques et procédé pour sa fabrication et son traitement
EP2440151A1 (fr) Fraise de forme et son utilisation
DE102009019447A1 (de) Verfahren zur Herstellung eines Zahnsortiments sowie einen Zahnsatzblock und ein hierfür geeignetes Zahnsortiment
DE4443012A1 (de) Orthodontievorrichtung mit strukturierter Verbindungsfläche und Verfahren zu ihrer Herstellung
DE102013102411A1 (de) Abutmentaufsatz für ein kieferimplantat
EP2614792A2 (fr) Membrane médicale, notamment membrane dentaire ainsi qu'implant dentaire avec une telle membrane
EP1426018A1 (fr) Procédé de fabrication d'une prothèse dentaire
EP2742908B1 (fr) Dent avec un creu dans la face de base
EP3335666B1 (fr) Dispositif de retenue d'un système comprenant une suprastructure et une butée
EP3151781B1 (fr) Modele de restauration dentaire
DE19959372B4 (de) Vorrichtung zum Regulieren von Zähnen sowie Verfahren zum Herstellen der Vorrichtung
EP1623678A2 (fr) Méthode pour l'ajustage d'un dispositif orthodontique par moyen d'un outil de forage, outil de forage ainsi que sa méthode de fabrication
EP3125819B1 (fr) Procédé de fabrication d'une couronne dentaire prothétique, couronne dentaire et couverture dentaire utilisant cette couronne
EP3064169B1 (fr) Procédé de fabrication de pièces céramiques dentaires et appareils pour la fabrication de pièces de céramique dentaire
DE19959370B4 (de) Vorrichtungen zum Regulieren von Zähnen sowie Verfahren zum Herstellen der Vorrichtungen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20111027

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140103