Global Patent Index - EP 1109510 A1

EP 1109510 A1 20010627 - METHOD AND APPARATUS FOR MEASURING THE COLOUR OF A TOOTH

Title (en)

METHOD AND APPARATUS FOR MEASURING THE COLOUR OF A TOOTH

Title (de)

METHODE UND GERÄT ZUR BESTIMMUNG DER FARBE EINES ZAHNES

Title (fr)

PROCEDE ET APPAREIL DE MESURE DE LA COULEUR D'UNE DENT

Publication

EP 1109510 A1 20010627 (EN)

Application

EP 99939962 A 19990901

Priority

  • DK 9900459 W 19990901
  • DK PA199801099 A 19980901

Abstract (en)

[origin: WO0012026A1] Method for measuring the colour of a patient's tooth, e.g. for preparing a dental prosthesis, by which method a measuring probe (1) is placed adjacent the tooth, light being emitting from the probe (1) which after reflection from the surface of the tooth is received by the same probe (1). The measuring probe (1) comprises two light conductor members (2, 3), one for transmitting light and one for receiving light, the first light conductor member (2) being formed of a bundle of light conductors concentrically arranged in relation to the second light conductor member (3). A spectroscopic member (7) communicating with a processor means (8) determines the shade of the tooth in relation to a given colour guide.

IPC 1-7

A61C 19/10; G01J 3/46

IPC 8 full level

G01J 3/46 (2006.01); G01J 3/02 (2006.01)

CPC (source: EP)

G01J 3/02 (2013.01); G01J 3/0218 (2013.01); G01J 3/46 (2013.01); G01J 3/502 (2013.01); G01J 3/508 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0012026 A1 20000309; AU 5407999 A 20000321; DK 199801099 A 20000302; EP 1109510 A1 20010627

DOCDB simple family (application)

DK 9900459 W 19990901; AU 5407999 A 19990901; DK PA199801099 A 19980901; EP 99939962 A 19990901