{HEAD ~ The applicants discovery} of the improved chemical stability of resins and resin precursors provided by the anion (x F) also provides {TAIL ~ means} for improving fluoride bearing polymerizable monomers generally, for example including the ester based monomers described in the above cited Rawls et al. patents 
provides
{ HEAD ~ The applicants discovery } of the improved chemical stability of resins and resin precursors provided by the anion ( x F ) also provides { TAIL ~ means } for improving fluoride bearing polymerizable monomers generally , for example including the ester based monomers described in the above cited Rawls et al . patents
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH