EP 1018974 A1 20000719 - 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
Application
Priority
- SE 9801660 W 19980916
- SE 9703353 A 19970917
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
IPC 8 full level
A61C 13/00 (2006.01)
CPC (source: EP)
A61C 13/0003 (2013.01); A61C 13/0022 (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
DOCDB simple family (publication)
WO 9913796 A1 19990325; AU 9195398 A 19990405; EP 1018974 A1 20000719; SE 509208 C2 19981214; SE 9703353 D0 19970917; SE 9703353 L 19981214
DOCDB simple family (application)
SE 9801660 W 19980916; AU 9195398 A 19980916; EP 98944410 A 19980916; SE 9703353 A 19970917