Condensation-curing dental material, in particular dental impression material, containing a) at least one alkoxysilyl-functional polyether b) at least one reinforcing filler b 1 ) and/or at least one non-reinforcing filler b 2 ) (c) water, where appropriate and (d) at least one catalyst characterized in that the at least one alkoxysilyl-functional polyether a) features as a third structural unit alkylene spacers which are arranged in each case at the terminal alkoxysilyl groups and which are particularly preferably C 1 -C 6 -alkyl groups, very particularly preferably C 1 -C 3 -alkyl groups and most particularly preferably ethylene groups (C 2 ) and/or methylene groups (C 1 ), and as a fourth structural unit 0 to 8 mmol/g, particularly preferably 0 to 4 mmol/g, very preferably 0.02 to 2 mmol/g and most preferably 0.1 to 0.4 mmol/g of urethane groups and/or 0 to 8 mmol/g, particularly preferably 0 to 2 mmol/g, very preferably 0,02 to 2 mmol/g and most preferably 0.1 to 0.4 mmol/g of urea groups, wherein those alkoxysilyl polyethers are most preferred, which do not contain any urethane and/or urea groups within the polymer chain and which contain not more than one urethane and/or urea group at each chain end and which contain not more than one methylene spacer group, wherein the individual structural units of the at least one polyether a) is preferably according to in which R 1 , R 2 and R 3 independently of one another are alkoxy, alkyl, aryl, aralkyl, alkylaryl groups or hydrogen, preferably butoxy, propoxy, ethoxy, me-thoxy, hexyl, pentyl, butyl, propyl, ethyl or methyl groups, particularly preferably ethoxy, methoxy, ethyl or methyl groups, with the proviso that at least one of the above-mentioned substituents, preferably two or all three substituents, are alkoxy groups, and x=1 to 6, preferably x=2 to 4 and most preferably x=2, n=1 to 6, preferably n=1 to 3 and most preferably n=1 and m=0 or 1, especially preferably m=1, is/are and/or in which R 1 , R 2 and R 3 independently of one another are alkoxy, alkyl, aryl, aralkyl, alkylaryl groups or hydrogen, preferably butoxy, propoxy, ethoxy, me-thoxy, hexyl, pentyl, butyl, propyl, ethyl or methyl groups, particularly preferably ethoxy, methoxy, ethyl or methyl groups, with the proviso that at least one of the above-mentioned radicals, preferably two or all three radicals, are alkoxy groups, and x=1 to 6, preferably x=2 to 4 and most preferably x=2, n=1 to 6, preferably n=1 to 3 and more preferably n=1 and l=0 or 1, most preferably l=1, in that the at least one reinforcing filler b 1 ) as a highly dispersed, active filler, has a BET surface area of at least 50 m 2 /g and/or a primary particle size of less than or equal to 100 nm, and/or the at least one non-reinforcing filler b 2 ) necessarily has a BET surface area of less than 50 m 2 /g, and that the at least one catalyst d) is an organic base with a pK BH + value of at least 20, measured in acetonitrile, and shows at least one structural unit according to the general formula I and/or according to the general formula II and/or according to the general formula III a) at least one alkoxysilyl-functional polyether b) at least one reinforcing filler b 1 ) and/or at least one non-reinforcing filler b 2 ) (c) water, where appropriate and (d) at least one catalyst <EOS>