| 摘要 |
Dental restorative compositions which are a blend of a liquid polymerizable organic binder and a filler comprising vitreous particles having diameters between about 0.700 microns and 30 microns wherein said particles average by weight between 2 and 20 microns in diameter, at least one half by weight of said particles have a size range of less than 20 microns. A preferred filler is crystalline quartz wherein the particles have diameters between 0.700 microns and 30 microns and average by weight between 2 and 20 microns in diameter, and wherein 80 percent by weight of said particles are under 20 microns in diameter and at least 20 percent by weight of said particles are under 5 microns in diameter. |
