The present invention provides a one-bottle dental bonding composition that provides a bonding layer excellent in bonding strength, independent of the skill of the practitioners, and, more preferably, that releases fluoride ion gradually into oral cavity over an extended period of time. The one-bottle dental bonding composition comprises a radical polymerizable monomer (A) having an acidic group in the molecule, another radical polymerizable monomer (B), a photopolymerization initiator (C) and a water-soluble organic solvent (D), and is substantially free of water.
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