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WO1995006442A1 - Adaptateur pour fraise dentaire - Google Patents

Adaptateur pour fraise dentaire Download PDF

Info

Publication number
WO1995006442A1
WO1995006442A1 PCT/SE1994/000733 SE9400733W WO9506442A1 WO 1995006442 A1 WO1995006442 A1 WO 1995006442A1 SE 9400733 W SE9400733 W SE 9400733W WO 9506442 A1 WO9506442 A1 WO 9506442A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner sleeve
sleeves
adaptor
support disk
outer sleeve
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.)
Ceased
Application number
PCT/SE1994/000733
Other languages
English (en)
Inventor
Gert Hovryd
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.)
TECNO LINE
Original Assignee
TECNO LINE
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 TECNO LINE filed Critical TECNO LINE
Publication of WO1995006442A1 publication Critical patent/WO1995006442A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/082—Positioning or guiding, e.g. of drills
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/12—Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth

Definitions

  • the present invention refers to adaptors and more specifically to an adaptor, which can be mounted on a drilling machine meant for drilling holes at right angles to a plane surface.
  • the adaptor is especially suitable for dental technicians' work.
  • the invention of this adaptor was made to solve problems of preparing dentures, crowns, bridges and similar constructions made by dental technicians. But it is obvious that the invention can be used by other types of work including the same problems: To be able to drill any number of parallel holes anywhere at right angles to a plane surface.
  • crowns and bridges which are to replace one tooth or more teeth
  • the crown or the bridge must certainly fit the tooth or the teeth that are to support the crown or the bridge.
  • the starting point of the dental technicians is a cast of the patient's teeth, a negative cast.
  • the tooth or the teeth that are to support the crown or the bridge are ground, so that the crown or the outermost teeth of a bridge can be fixed on them.
  • the dental technicians prepare a positive cast out of the negative one.
  • the positive cast is the model of the teeth.
  • To prepare a crown or a bridge the dental technicians just need the model or the models of the ground teeth, so that the prepared dentures can be fixed on them.
  • the other teeth are of no interest. However, the relation between the crown or the bridge and the other teeth are of importance, what will appear later.
  • the model cast of the teeth are ground on the side turning towards the teeth to a plane surface, which is treated with a remedy, making it resistant to any sticking to casting material.
  • No less than two holes are drilled in the plane and prepared bottom, in each of the teeth that are to be separated to be used for the preparation of crowns or bridges.
  • Protruding pins are glued into the holes. Some extra holes ar drilled in other places, and pins are glued into these holes to get the cast model into a fixed position.
  • Small sleeves are mounted on the protruding ends of the pins , and then the plane and prepared surface is pressed against a casing material in a casting form, so that the pins including the sleeves penetrates it. When the casting material is cured, the model must be lifted up, while the plastic sleeves are stuck in the casting material.
  • Fig. 1 is a schematic cut through an adaptor similar to the invention.
  • Fig. 2 is a view from the under side of the adaptor of fig. 1.
  • Fig. 3 is a perspective view of an adaptor similar to the invention, mounted on a conventional drilling maschine for dental technicians.
  • Fig. 1 shows a schematic cut of an adaptor (1) similar to the invention, which consists mainly of three elements, an inner sleeve (2), an outer sleeve (3) and a spiral spring (4).
  • the inner sleeve (2) is tubular with a circular cross section, and at one outer end there is a thread (5) for screwing on the adaptor (1) to a drilling maschine equipped with a corresponding thread.
  • threads other means of fastening can be used with machines having no tread but a conventional neck, such as clamps, screws etc.
  • the outer tubular sleeve (3) slidingly surrounds the inner sleeve (2).
  • the shape of the outer sleeve (3) is partly complementary to the inner sleeve (2), so that the outer sleeve (3) is gliding by control on to the inner sleeve (3).
  • the outer sleeve (3) has an introverted shoulder, situated directly opposite of the inner end (7) of the inner sleeve (2).
  • Two axially oriented grooves (8) with diametrically opposite levels are cut through the wall of the inner sleeve (2), and a screw or a pin (9) , which is radially directed towards the inside of the outer sleeve (3), is situated in each of these grooves.
  • the length of the grooves (8) decides the reach of which the sleeves (2) and (3) can be displaced axially in relation to one another.
  • the spiral spring (4) is set between the screw and the inner bottom (7) of the inner sleeve (2). In this way the spring (4) presets the sleeves (2) and (3) to an extended level or a level opposite one another.
  • the outer sleeve (3) stretches from its shoulder to a foot or a support disk (10).
  • One or more through-going holes (11) are situated in the wall of the area between the shoulder and the support disk (10). These holes are meant for outlet of chips from the invisible drilling machine.
  • the adaptor 1) which is similar to the invention, is in fig. 1 mounted on a type of drilling machine (15) , which is often used in dental technicians' laboratories, so that it encloses the drill chuck including the fastened drills.
  • the thread (5) of the inner sleeve (2) is screwed into an opposite thread around the drill chuck of the drilling machine (15).
  • the drills (16) fastened to the drill chucks are adjusted in a way that level their tips with the bottom of the support disk (10).
  • the dental technician places the support disk (10) against the surface, in which holes are to be drilled, that is the plane surface of the cast model, as mentioned in the introduction.
  • the drill (16) is situated at a right angle to the plane surface and each hole to be drilled will be parrallel to any holes drilled in the same way in the plane surface of the cast model.
  • the dental technician is able to see precisely, to where the drill (16) can be displaced for drilling.
  • the length of the groove (8) decides the maximum drilling-depth, which is adapted to the pins that are to be mounted in the parrallel holes.

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)
  • Drilling Tools (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Adaptateur (1) pouvant être fixé à une fraise dentaire et composé d'un manchon tubulaire interne (2), d'un manchon tubulaire externe (3) qui entoure partiellement le manchon interne (2) et qui peut être déplacé dans le sens axial par rapport au manchon interne (2), ainsi que d'un ressort (4). Les manchons (2, 3) peuvent subir un déplacement limité entre une position étendue et une position comprimée l'un par rapport à l'autre. Le ressort (4) sert à positionner initialement les manchons (2, 3) en une position étendue. Des goujons (9) sont orientés dans le sens radial vers l'intérieur du manchon externe (3) et dans des rainures axiales (8), ce qui permet auxdites rainures (8) de déterminer l'étendue du déplacement relatif des manchons (2, 3). La partie libre du manchon externe (3) forme un disque de support (10) qui est orthogonal par rapport au sens du déplacement des manchons (2, 3). Une découpe (13) est pratiquée du pourtour vers le centre du disque de support (10) afin de permettre l'observation des points exacts de fraisage.
PCT/SE1994/000733 1993-08-30 1994-08-11 Adaptateur pour fraise dentaire Ceased WO1995006442A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9302797-7 1993-08-30
SE9302797A SE9302797L (sv) 1993-08-30 1993-08-30 Borradapter

Publications (1)

Publication Number Publication Date
WO1995006442A1 true WO1995006442A1 (fr) 1995-03-09

Family

ID=20390923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000733 Ceased WO1995006442A1 (fr) 1993-08-30 1994-08-11 Adaptateur pour fraise dentaire

Country Status (2)

Country Link
SE (1) SE9302797L (fr)
WO (1) WO1995006442A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007065978A1 (fr) * 2005-12-08 2007-06-14 Georges Antoine Creps Dispositif et procede de forage pour l' insertion d'un implant dentaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644509A5 (en) * 1980-11-27 1984-08-15 Micro Mega Sa Accessory for guiding a drill mounted on a dental handpiece
EP0328911A2 (fr) * 1988-01-29 1989-08-23 Nikola Dr. Lauks Dispositif de perçage pour cavités d'implants chirurgicaux des mâchoires

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644509A5 (en) * 1980-11-27 1984-08-15 Micro Mega Sa Accessory for guiding a drill mounted on a dental handpiece
EP0328911A2 (fr) * 1988-01-29 1989-08-23 Nikola Dr. Lauks Dispositif de perçage pour cavités d'implants chirurgicaux des mâchoires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007065978A1 (fr) * 2005-12-08 2007-06-14 Georges Antoine Creps Dispositif et procede de forage pour l' insertion d'un implant dentaire

Also Published As

Publication number Publication date
SE500861C2 (sv) 1994-09-19
SE9302797L (sv) 1994-09-19
SE9302797D0 (sv) 1993-08-30

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