Global Patent Index - EP 1018974 A1

EP 1018974 A1 2000-07-19 - METHOD AND BLANK FOR THE PRODUCTION OF A DENTAL BODY

Title (en)

METHOD AND BLANK FOR THE PRODUCTION OF A DENTAL BODY

Title (de)

VERFAHREN UND ROHLING ZUR HERSTELLUNG EINES GEBISSKÖRPERS

Title (fr)

TECHNIQUE DE FABRICATION DE CORPS DENTAIRE ET EBAUCHE CORRESPONDANTE

Publication

EP 1018974 A1 (EN)

Application

EP 98944410 A

Priority

  • SE 9801660 W
  • SE 9703353 A

Abstract (en)

[origin: WO9913796A1] The present invention concerns a method for the production by machining of a dental restoration body for use when mending, restoring or building up a tooth or row of teeth, as well as a blank intented for the production of the dental restoration body by machining. The procedure involves that numerical information about the geometry of the desired restoration body is compared with information about the geometry of available blanks; that information about the colour of the desired restoration body is compared with information about the colour of available blanks; that the blank whose geometry most closely exceeds the geometry of the desired restoration body and whose colour most closely agrees with the colour of the desired restoration body is selected; and that the chosen blank is machined to the desired restoration body. The blank includes a part for firmly attaching the blank during machining, the firm attachment part (5), and a part intended to be machined, the machined part (7), that has a specified geometry, whereby a waist of material (8) or neck to facilitate the access of the machine tool and reduce the amount of rough machining during the production of the restoration body is arranged between the parts. In addition, the geometry of the machined part (7) is roughly pre-formed and a directional orienting reference device is arranged at a specified position on the blank. A recess (12) of specified dimensions is also arranged on one surface of the machined part (7).

IPC 1-7 (main, further and additional classification)

A61C 13/00

IPC 8 full level (invention and additional information)

A61C 13/00 (2006.01)

CPC (invention and additional information)

A61C 13/0022 (2013.01); A61C 13/0003 (2013.01)

Citation (search report)

See references of WO 9913796A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9913796 A1 19990325; AU 9195398 A 19990405; EP 1018974 A1 20000719; SE 509208 C2 19981214; SE 9703353 D0 19970917; SE 9703353 L 19981214

INPADOC legal status


2004-10-13 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040401

2000-07-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000414

2000-07-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE