| 摘要 |
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: <IMAGE> 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. |
