EP 1210027 A1 20020605 - IMPROVED DENTAL CROWN
Title (en)
IMPROVED DENTAL CROWN
Title (de)
VERBESSERTE DENTALE KRONE
Title (fr)
COURONNE DENTAIRE AMELIOREE
Publication
Application
Priority
- AU 0000853 W 20000717
- AU PQ210199 A 19990809
Abstract (en)
[origin: WO0110332A1] A dental crown (10) is disclosed which comprises a titanium metal core (12) which is suitable for fixing over a tooth stud (not shown) and a layer of mesh (14) which is fixed to the core (12) by welding or similar means. An outer layer of fused porcelain (16) forms an outer body functional as a tooth and is mechanically bonded to the mesh (14). The mechanical bonding provides a very strong bond between the porcelain (16) and the mesh (14) which allows the porcelain (16) to expand and contract relative to the metal core (12) enabling the porcelain outer body (16) to be made of uneven thickness without causing cracking of the porcelain. The specification also discloses a method of mounting the crown to a tooth stud using a compressible gold layer interposed between the crown and the tooth stud to improve the margin fit of the crown.
IPC 1-7
IPC 8 full level
A61C 5/08 (2006.01); A61C 5/30 (2017.01); A61C 5/70 (2017.01); A61C 5/73 (2017.01); A61C 5/77 (2017.01); A61C 13/00 (2006.01)
CPC (source: EP US)
A61C 5/30 (2017.01 - EP US); A61C 5/70 (2017.01 - EP US); A61C 5/73 (2017.01 - US); A61C 5/77 (2017.01 - EP US); A61C 13/0003 (2013.01 - EP US)
Citation (search report)
See references of WO 0110332A1
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 0110332 A1 20010215; AU PQ210199 A0 19990902; EP 1210027 A1 20020605
DOCDB simple family (application)
AU 0000853 W 20000717; AU PQ210199 A 19990809; EP 00943474 A 20000717