A one-part self-etching, self-priming dental adhesive having a pH of at most 2, which comprises an aqueous mixture containing(i) one or more polymerizable monomers optionally containing an acidic group,(ii) optionally one or more organic or inorganic acids,(iii) a polymerization initiator, and(iv) a thermal polymerisation inhibitor of the following formula (I):wherein R′1 represents a hydrogen atom, or a saturated hydrocarbon group having 1 to 18 carbon atoms.R′2, which may be the same or different if more than one R′2 is present, independently represent a saturated hydrocarbon group having 1 to 18 carbon atoms, andc represents an integer of from 1 to 4.
