title: Microporous glassy fillers for dental composites.
abstract: A microporous filler giving greatly improved finish ability, systemic nontoxic X-ray opacification, low thermal expansion (27.2 x 10(-6)/degrees C), and satisfactory translucencies has been developed for dental composite resin restorations. These fillers are prepared from frits obtained by the low-temperature calcination of gelled inorganic sols followed by a pulsed high-temperature treatment. Composites prepared from these fillers are within the range of commercial products with regard to strength and setting contraction.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003188:Composite Resins / Q000592:standards; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis; D005898:Glass; D055585:Physical Phenomena; D010825:Physics
chemical_list: D003188:Composite Resins