{HEAD ~ A denture cleansing composition} comprising {TAIL ~ an effervescent agent} and as a bleaching agent a monoperphthalate or a potassium monopersulfate and a monoperphthalate 
{ HEAD ~ A denture cleansing composition } comprising { TAIL ~ an effervescent agent } and as a bleaching agent a monoperphthalate or a potassium monopersulfate and a monoperphthalate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH