Use of a dental material that comprises at least one compound of Formula I or I' in which A represents in each case independently an (m+1)-valent phenylene group, R 1 represents in each case independently an aliphatic linear or branched C 1 -C 20 alkyl group that can be interrupted by -O- or-S-, a phenyl group that can carry one or more substituents that are preferably selected independently of each other from the group consisting of CH 3, C 2 H 5, OH and OCH 3, or R 3, R 2 represents in each case independently H, an aliphatic linear or branched C 1 -C 20 alkyl group that can be interrupted by -O- or -S-, or a phenyl group that can carry one or more substituents that are preferably selected independently of each other from the group consisting of CH 3, C 2 H 5, OH and OCH 3, R 3 represents in each case independently -Z-Y-R 2 or -Z-C(=O)-≡-A(R 4) m, R 4 represents in each case independently -≡-C(=O)-R 3, R 5 represents in each case independently phenyl or R 6, R 6 represents in each case independently -C(=O)-X-R 2 or -C(=O)-X-Z(R 7)m, R 7 represents in each case independently -X-C(=O)-≡-R 6, X represents in each case independently O, S, NH or CH 2, wherein X is missing when R 5 represents phenyl, Y represents in each case independently -C -O-, -O-C -, O or S, Z represents an (m+1)-valent aliphatic linear or branched C 1 -C 20 alkylene group that can be interrupted by -O- or -S-, or a phenylene group that can carry one or more substituents that are preferably selected independently of each other from the group consisting of CH 3, C 2 H 5, OH and OCH 3, and m in each case independently can assume the values 1 to 5, for manufacturing dental composites or dental restoration materials. A represents in each case independently an (m+1)-valent phenylene group, R 1 represents in each case independently an aliphatic linear or branched C 1 -C 20 alkyl group that can be interrupted by -O- or-S-, a phenyl group that can carry one or more substituents that are preferably selected independently of each other from the group consisting of CH 3, C 2 H 5, OH and OCH 3, or R 3, R 2 represents in each case independently H, an aliphatic linear or branched C 1 -C 20 alkyl group that can be interrupted by -O- or -S-, or a phenyl group that can carry one or more substituents that are preferably selected independently of each other from the group consisting of CH 3, C 2 H 5, OH and OCH 3, R 3 represents in each case independently -Z-Y-R 2 or -Z-C(=O)-≡-A(R 4) m, R 4 represents in each case independently -≡-C(=O)-R 3, R 5 represents in each case independently phenyl or R 6, R 6 represents in each case independently -C(=O)-X-R 2 or -C(=O)-X-Z(R 7)m, R 7 represents in each case independently -X-C(=O)-≡-R 6, X represents in each case independently O, S, NH or CH 2, wherein X is missing when R 5 represents phenyl, Y represents in each case independently -C -O-, -O-C -, O or S, Z represents an (m+1)-valent aliphatic linear or branched C 1 -C 20 alkylene group that can be interrupted by -O- or -S-, or a phenylene group that can carry one or more substituents that are preferably selected independently of each other from the group consisting of CH 3, C 2 H 5, OH and OCH 3, and m in each case independently can assume the values 1 to 5,