A one-part self-etching, self-priming dental adhesive having a pH of at most2, which comprises an aqueous mixture containing (i) one or more polymerizablemonomers optionally containing an acidic group, (ii) optionally one or moreorganic or inorganic acids, (iii) a polymerization initiator, and (iv) athermal Polymerisation inhibitor of the following formula (I): wherein R~1represents a hydrogen atom, or a saturated hydrocarbon group having 1 to 18carbon atoms. R'2, which may be the same or different if more than one R'2 ispresent, independently represent a saturated hydrocarbon group having 1 to 18carbon atoms, and c represents an integer of from 1 to 4.
