PROBLEM TO BE SOLVED: To provide a non-solvent system self-etching composition for dentistry which is excellent in long-term storage properties, exhibits excellent adhesive properties to both enamel and dentin, and does not contain water and an organic solvent substantially.SOLUTION: The invention provides a non-solvent system self-etching composition for dentistry characterized by containing (A) a polymerizable monomer comprising a sulfonic acid group-containing polymerizable monomer (a1) as at least one part, and (B) a photopolymerization initiator with a carbonyl group, such as camphor quinone, wherein the total content of a primary alcohol compound, such as hydroxyethyl alcohol, and 1,2-diol compound is less than 10 parts by mass with respect to 100 parts by mass of total polymerizable monomers.SELECTED DRAWING: None
