Strengthened ceramic restoration

A - Human Necessities – 61 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61C 13/00 (2006.01) A61C 13/08 (2006.01) A61K 6/06 (2006.01) C04B 41/50 (2006.01)

Patent

CA 2504739

The present invention relates to a process for the preparation of a full- ceramic dental restoration, comprising heat pressing of a tooth coloured pressing glass on a fully or partially supporting structure of yttria doped tetragonal zirconia (YTZP), comprised of yttria doped tetragonal zirconia ceramic having a grain size, as measured by the linear intercept method, of less than 0.6 µm, wherein the pressing glass has a thermal expansion coefficient (TEC) of between 9.0 and 11.0 µm/m.K (measured in the range of from 25 to 500~C) and wherein the pressing glass has a pressing temperature of between 750 and 1000~C. In a further aspect, the invention relates to a full- ceramic dental restoration, comprising a fully or partially supporting structure of yttria doped tetragonal zirconia (YTZP) and a heat pressed tooth coloured pressing glass, which restoration is modelled to be in occlusal contact with opposing teeth and in mesio-distal contact with neighbouring teeth.

La présente invention concerne un processus de préparation d'une restauration dentaire entièrement céramique qui consiste à comprimer thermiquement un verre de pressage ayant la coloration des dents sur une structure ayant entièrement ou partiellement une fonction de support et constituée de zirconium tétragonal dopé à l'yttrium (YTZP), qui comprend une céramique en zirconium tétragonal dopé à l'yttrium possédant une granularité mesurée par le procédé d'interception linéaire de moins de 0,6 mm. Le verre de pression à un coefficient de dilatation thermique de moins de 9,0 à 11,0 mm/m.K (mesuré dans une plage entre 25 et 500·C), le verre de pressage ayant une température de pressage entre 750 et 1000 ·C. Dans un autre aspect, l'invention concerne une restauration dentaire entièrement céramique, qui comprend une structure ayant entièrement ou partiellement une fonction de support et constituée de zirconium tétragonal dopé à l'yttrium (YTZP) et du verre de pressage ayant la coloration des dents, le dispositif de restauration étant modelé pour être en contact occlusif avec les dents opposées et en contact mésiodistal avec les dents voisines.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Strengthened ceramic restoration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Strengthened ceramic restoration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strengthened ceramic restoration will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2061399

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.