High strength dental porcelains

Details High strength dental porcelains High strength dental porcelains

C - Chemistry, Metallurgy

03

C

261/16, 25/99

C03C 3/04 (2006.01) A61K 6/06 (2006.01) C04B 35/19 (2006.01)

Patent

CA 1272222

ABSTRACT Translucent feldspathic dental porcelain compositions and dental restorations made therefrom exhibiting a crystalline leucite content of at least about 45% by weight, wherein said leucite crystallites exhibit a size of less than about 35 microns, comprising: Component Percentage (by weight) SiO2 55 - 70 Al2O3 16 - 20 CaO 0.5 - 5.0 MgO 0.5 - 5.0 Li2O 1.0 - 5.0 Na2O 2.0 - 5.0 K2O 12.5 - 22.5 Ce2O3 0 - 1.0 said dental restorations exhibit a compressive strength of at least about 125,000 p.s.i., a flexural strength of at least about 16,000 p.s.i., and a diametral tensile strength of at least about 6,000 p.s.i., thereby obviating the need for metal as ceramic supports.

555097

Affiliated with

Also associated with

Rating

High strength dental porcelains does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1295771