Dental composition with improved light stability

Dental composition having an improved light and thermal stability, comprising a mixture of

• (i) at least a polymerizable resin
• (ii) at least a polymerizable monomer
• (iii) at least a polymerization initiator and/or a sensitizer and stabilizer
• (vi) at least an organic and/or inorganic filler and pigments in a content of 0 to 90 percent
• (vii) and at least one of the stable radicals of formulas 1 to 5
• 20
• wherein
• R0 denotes a substituted or unsubstituted C1 to C18 alkylene, R1, R2, R3 and R4 denotes a substituted or unsubstituted C1 to C18 alkylene, preferably a methyl group X denotes a difunctional substituted or unsubstituted C2 to C30 alkylene, C5 to C30 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C30 arylene or heteroarylene, preferably the following structures
• 21
• wherein R5 denotes a difunctional substituted or unsubstituted C1 to C18 alkylene, C5 to C18 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C18 arylene or heteroarylene, Y denotes H or a monofunctional substituted or unsubstituted C1 to C18 alkyl, C5 to C18 substituted or unsubstituted cycloalkyl, substituted or unsubstituted C5 to C18 aryl or heteroaryl, preferably selected from the group
• 22
• wherein
• R6 denotes a difunctional substituted or unsubstituted C1 to C18 alkylene, C5 to C18 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C18 arylene or heteroarylene, preferably
• 23
• R7 denotes difunctional substituted or unsubstituted C1 to C18 alkylene, C5 to C18 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C18 arylene or heteroarylene, preferably selected from the group R8 denotes H or a monofunctional substituted or unsubstituted C1 to C30 alkylene, C5 to C30 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C30 arylene or heteroarylene R9 denotes a monofunctional substituted or unsubstituted C1 to C30 alkylene, C5 to C30 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C30 arylene or heteroarylene Z denotes hydrogen, or a polymerizable moiety, preferably selected from the
• group of
• 24
• wherein
• R8 denotes H or a monofunctional substituted or unsubstituted C1 to C30 alkylene, C5 to C30 substituted or unsubstituted cycloalkylene, substituted or unsubstituted C5 to C30 arylene or heteroarylene n, m and o are integers.