Abstract: A dental ceramic material is disclosed for the preparation and repair of metal ceramic and fully ceramic dentures, which has a processing temperature of 660.degree..+-.30.degree. C., and has the following composition: 60 to 65% by weight of SiO.sub.2, 8.5 to 11% by weight of Al.sub.2 O.sub.3, 8 to 12% by weight of K.sub.2 O, 10.5 to 12% by weight of Na.sub.2 O, 0.7 to 2% by weight of CaO, 0.5 to 2.5% by weight of B.sub.2 O.sub.3, 0.1 to 0.6% by weight of Sb.sub.2 O.sub.3, 0 to 0.5% by weight of CeO.sub.2, 1.0 to 3.8% by weight of TiO.sub.2, 0.8 to 1.4% by weight of Li.sub.2 O, and 0.6 to 2.4% by weight of F.sub.2.

Abstract: Ceramic masses with processing temperatures of approximately 770.degree. C. and coefficients of thermal expansion of 8-9.multidot.10.sup.-6 K.sup.-1 and 16-17.5.multidot.10.sup.-6 K.sup.-1 are required for dental prostheses consisting of low-melting gold alloys and titanium alloys for their veneering. Such ceramic masses are composed of 60 to 75% by weight SiO.sub.2, 4 to 15% by weight Al.sub.2 O.sub.3, 0.7 to 2.5% by weight B.sub.2 O.sub.3, 0 to 0.9% by weight Sb.sub.2 O.sub.3, 0 to 0.5% by weight CeO.sub.2, 0 to 2.5% by weight BaO, 0 to 0.5% by weight CaO, 7 to 12% by weight K.sub.2 O, 6 to 11% by weight Na.sub.2 O, 0.55 to 1.4% by weight Li.sub.2 O and 0.2 to 1.0% by weight F.sub.2.