The invention relates to mixtures comprising polymers containing hydrogen-siloxane groups and fluoride, in addition to the use of said mixtures as a dental scaling varnish and fluoridation varnish and as a desensitising agent, in addition to the use of said mixtures as a protective covering for glasionomer cement fillings.

A visible light photopolymerizable composition comprising a) an aryliodonium salt and b) a titanocene derivate. These compositions can be used together with an epoxide resin as a dental composition.