Use of glass compositions with antimicrobial and/or disinfectant effect in materials used for restoring teeth, excluding implants, in the field of tooth fillers, wherein the tooth filler is a material chosen from the following group: a glass ionomer cement; a compomer; wherein the glass composition comprises the following components (in % by weight on the basis of oxide): SiO 2 0 - 99.5% by weight P 2 O 5 0 - 80% by weight SO 3 0 - 40% by weight B 2 O 3 0 - 80% by weight Al 2 O 3 0 - 30% by weight Li 2 O 0 - 30% by weight Na 2 O 0 - 40% by weight K 2 O 0 - 30% by weight CaO 0 - 25% by weight MgO 0 - 15% by weight SrO 0 - 30% by weight BaO 0 - 40% by weight ZnO 0 - < 15% by weight TiO 2 0 - 10% by weight ZrO 2 0 - 15% by weight CeO 2 0 - 10% by weight Ag 2 O 0.01 - 5% by weight F 0 - 70% by weight J 0 - 10% by weight Fe 2 O 3 0 - 5% by weight, and optionally trace elements and/or the usual refining agents in the usual quantities, wherein the sum total of SiO 2 + P 2 O 5 + SO 3 + B 2 O 3 + Al 2 O 3 is greater than 20% by weight and a maximum of 99.5% by weight, and the sum total of ZnO + Ag 2 O + CuO + GeO 2 + TeO 2 + Cr 2 O 3 is > 0.01% by weight, or wherein the glass composition comprises the following components (in % by weight on the basis of oxide): SiO 2 0 - 99.5% by weight, preferably 0 - 80% by weight P 2 O 5 0 - 80% by weight SO 3 0 - 40% by weight B 2 O 3 0 - 80% by weight Al 2 O 3 0 - 30% by weight Li 2 O 0 - 30% by weight Na 2 O 0 - 40% by weight K 2 O 0 - 30% by weight CaO 0 - 25% by weight MgO 0 - 15% by weight SrO 0 - 30% by weight BaO 0 - 40% by weight ZnO 0 - < 15% by weight, preferably 5 - < 15% by weight F 0 - 65% by weight J 0 - 10% by weight Fe 2 O 3 0 - 5% by weight Ag 2 O 0.01 - 5% by weight, and optionally trace elements and/or the usual refining agents in the usual quantities, wherein the sum total of SiO 2 + P 2 O 5 + SO 3 + B 2 O 3 + Al 2 O 3 is greater than 20% by weight and a maximum of 99.5% by weight, especially a maximum of 80% by weight, or wherein the glass composition is an ion-releasing glass composition which comprises the following components (in % by weight on the basis of oxide): SiO 2 40 - 80% by weight B 2 O 3 5 - 40% by weight Al 2 O 3 0 - 10% by weight P 2 O 5 0 - 30% by weight Li 2 O 0 - 25% by weight Na 2 O 0 - 25% by weight K 2 O 0 - 25% by weight CaO 0 - 25% by weight MgO 0 - 15% by weight SrO 0 - 15% by weight BaO 0 - 15% by weight ZnO 0 - < 15% by weight Ag 2 O 0.01 - 5% by weight CuO 0 - 10% by weight GeO 2 0 - 10% by weight TeO 2 0 - 15% by weight Cr 2 O 3 0 - 10% by weight, J 0 - 10% by weight F 0 - 10% by weight, wherein the sum total of ZnO + Ag 2 O + CuO + GeO 2 + TeO 2 + Cr 2 O 3 + J is between 5 and 70% by weight. a glass ionomer cement; a compomer; wherein the glass composition comprises the following components (in % by weight on the basis of oxide): SiO 2 0 - 99.5% by weight P 2 O 5 0 - 80% by weight SO 3 0 - 40% by weight B 2 O 3 0 - 80% by weight Al 2 O 3 0 - 30% by weight Li 2 O 0 - 30% by weight Na 2 O 0 - 40% by weight K 2 O 0 - 30% by weight CaO 0 - 25% by weight MgO 0 - 15% by weight SrO 0 - 30% by weight BaO 0 - 40% by weight ZnO 0 - < 15% by weight TiO 2 0 - 10% by weight ZrO 2 0 - 15% by weight CeO 2 0 - 10% by weight Ag 2 O 0.01 - 5% by weight F 0 - 70% by weight J 0 - 10% by weight Fe 2 O 3 0 - 5% by weight, and optionally trace elements and/or the usual refining agents in the usual quantities, wherein the sum total of SiO 2 + P 2 O 5 + SO 3 + B 2 O 3 + Al 2 O 3 is greater than 20% by weight and a maximum of 99.5% by weight, and the sum total of ZnO + Ag 2 O + CuO + GeO 2 + TeO 2 + Cr 2 O 3 is > 0.01% by weight, or wherein the glass composition comprises the following components (in % by weight on the basis of oxide): SiO 2 0 - 99.5% by weight, preferably 0 - 80% by weight P 2 O 5 0 - 80% by weight SO 3 0 - 40% by weight B 2 O 3 0 - 80% by weight Al 2 O 3 0 - 30% by weight Li 2 O 0 - 30% by weight Na 2 O 0 - 40% by weight K 2 O 0 - 30% by weight CaO 0 - 25% by weight MgO 0 - 15% by weight SrO 0 - 30% by weight BaO 0 - 40% by weight ZnO 0 - < 15% by weight, preferably 5 - < 15% by weight F 0 - 65% by weight J 0 - 10% by weight Fe 2 O 3 0 - 5% by weight Ag 2 O 0.01 - 5% by weight, and optionally trace elements and/or the usual refining agents in the usual quantities, wherein the sum total of SiO 2 + P 2 O 5 + SO 3 + B 2 O 3 + Al 2 O 3 is greater than 20% by weight and a maximum of 99.5% by weight, especially a maximum of 80% by weight, or wherein the glass composition is an ion-releasing glass composition which comprises the following components (in % by weight on the basis of oxide): SiO 2 40 - 80% by weight B 2 O 3 5 - 40% by weight Al 2 O 3 0 - 10% by weight P 2 O 5 0 - 30% by weight Li 2 O 0 - 25% by weight Na 2 O 0 - 25% by weight K 2 O 0 - 25% by weight CaO 0 - 25% by weight MgO 0 - 15% by weight SrO 0 - 15% by weight BaO 0 - 15% by weight ZnO 0 - < 15% by weight Ag 2 O 0.01 - 5% by weight CuO 0 - 10% by weight GeO 2 0 - 10% by weight TeO 2 0 - 15% by weight Cr 2 O 3 0 - 10% by weight, J 0 - 10% by weight F 0 - 10% by weight, wherein the sum total of ZnO + Ag 2 O + CuO + GeO 2 + TeO 2 + Cr 2 O 3 + J is between 5 and 70% by weight.