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WO1995010987A1 - Procede d'application de marques d'identification - Google Patents

Procede d'application de marques d'identification Download PDF

Info

Publication number
WO1995010987A1
WO1995010987A1 PCT/SE1994/000976 SE9400976W WO9510987A1 WO 1995010987 A1 WO1995010987 A1 WO 1995010987A1 SE 9400976 W SE9400976 W SE 9400976W WO 9510987 A1 WO9510987 A1 WO 9510987A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic
prosthesis
plate
formed part
tool
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/SE1994/000976
Other languages
English (en)
Inventor
Jan QVARNSTRÖM
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.)
DENTALVERKSTAN AB
Original Assignee
DENTALVERKSTAN AB
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 DENTALVERKSTAN AB filed Critical DENTALVERKSTAN AB
Publication of WO1995010987A1 publication Critical patent/WO1995010987A1/fr
Priority to SE9601520A priority Critical patent/SE505052C2/sv
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/411—Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1178—Identification of persons based on the shapes or appearances of their bodies or parts thereof using dental data
    • 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

Definitions

  • This invention relates to a method of identification marking of dental prostheses of plastic, a wax model, provided with teeth, of the prosthesis of a patient being created in a conventional way.
  • the invention also relates to a new tool, which is intended to be used for the new method. Identification marking of prostheses by means of personal numbers is made in
  • a final preparation of the prosthesis is made which is carried out by the dental technician and means that the wax is exchanged for plastic.
  • This is made in that way that the wax prosthesis is put into a mould which is then filled with for instance plaster so that a casting mould is obtained. Thereafter all wax is removed by warm water, whereas the teeth of the wax prosthesis are kept fastened in the plaster.
  • Next step means that the dental technician fills the vacant space after the wax with plastic.
  • plastic is forced into the mould by a suitable plastic injection device. After this moment the mould is subjected to boiling under pressure, whereby the plastic is hardened. Thereafter, the prosthesis with surrounding plaster is taken away from the mould so that the plaster can be removed from the prosthesis.
  • the final prosthesis shall now be identification marked with the identification code of the patient. This is made by the fact that a slot is ground in the prosthesis and in this slot is laid an embossed plate with the identification code of the patient. The plate is then covered with cold-curing, transparent plastic.
  • the prosthesis accepted by the dentist and the patient is in the form of a wax model.
  • the new method means that the plate embossed with the identification code is applied at a suitable place on the wax model of the pro ⁇ sthesis by means of a plastic tool 1, which suitably has the design of a T-profile.
  • the plate is fastened on the plastic tool in that way that when applying the plate on the wax model of the prosthesis, the plastic tool will also be fixed on the wax model.
  • the plaster will surround not only the wax model but also the plastic tool.
  • the T-designed plastic tool has a roof-formed part 2, which is arranged for holding the embossed plate in place.
  • the part 2 has two projecting portions 3 and 4, between which the embossed plate accordingly is intended to be positioned.
  • the plastic tool 1 also comprises a shaft-formed part 5, the purpose of which is to contribute to the fixation of the tool and the plate in the mould.
  • the choice of the plastic material for this tool is made in cooperation with the social authorities of respective country.
  • the requirements that the plastic material shall satisfy are that it shall be transparent and orally acceptable. That part of the plastic tool that will be left, when the manufacture of the prosthesis is completed and the prosthesis is polished, is only the roof 2 with the embossed plate.
  • the plastic tool 1 is suitably manufactured by continuous casting or moulding. Another advantage with the new invention is that is reduces the risk of contact allergies which can come up by the presence of monomeres in the plastic.
  • cold-curing plastic which according to known technique is used for fastening the plate with the identification code in the prosthesis, the presence of rest-monomeres is a known fact. In contrast to this the rest-monomeres are eliminated in plastics which are hardened by a controlled heating.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Dentistry (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Immunology (AREA)
  • Dental Prosthetics (AREA)

Abstract

Procédé d'application de marques d'identification sur les prothèses dentaires en matière plastique, un modèle en cire, pourvu de dents, de la prothèse d'un sujet créée de manière classique. Le procédé est caractérisé en ce qu'il consiste à appliquer sur le modèle en cire, en un point approprié et à l'aide d'un outil (1), une plaquette portant en relief le code d'identification du sujet; à placer le modèle en cire dans un moule que l'on remplit, par exemple de plâtre afin d'obtenir une pièce moulée; et a remplacer la cire par de la matière plastique de sorte que la plaquette laisse une trace visible dans la matière plastique. On a également prévu un outil utilisable dans la mise en oeuvre de ce nouveau procédé.
PCT/SE1994/000976 1993-10-22 1994-10-18 Procede d'application de marques d'identification Ceased WO1995010987A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9601520A SE505052C2 (sv) 1993-10-22 1996-04-22 Metod vid ID-märkning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9303489-0 1993-10-22
SE9303489A SE9303489L (sv) 1993-10-22 1993-10-22 Metod och verktyg vid ID-märkning av tandproteser

Publications (1)

Publication Number Publication Date
WO1995010987A1 true WO1995010987A1 (fr) 1995-04-27

Family

ID=20391513

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000976 Ceased WO1995010987A1 (fr) 1993-10-22 1994-10-18 Procede d'application de marques d'identification

Country Status (2)

Country Link
SE (1) SE9303489L (fr)
WO (1) WO1995010987A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439154A (en) * 1981-07-13 1984-03-27 Mayclin Thomas J Permanent identification method for removable dental prosthesis and structure
WO1986000213A1 (fr) * 1984-06-18 1986-01-16 Mc-Mid, Inc. Dispositif et procede d'identification

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439154A (en) * 1981-07-13 1984-03-27 Mayclin Thomas J Permanent identification method for removable dental prosthesis and structure
WO1986000213A1 (fr) * 1984-06-18 1986-01-16 Mc-Mid, Inc. Dispositif et procede d'identification

Also Published As

Publication number Publication date
SE9303489L (sv) 1995-04-23
SE9303489D0 (sv) 1993-10-22

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