Dentition rhymes with:
competition, dietician, dietitian, mathematician, mortician, optician, partition, petition, politician, repetition, statistician, superstition, tactician, theoretician, titian
Dentition sounds like:
damnation, dandeneau, dantin, danton, dantoni, dantonio, dantuono, demotion, denden, denomination, dentin, dentine, dentino, denton, dentton, detention, detonation, diantonio, diminution, dimunition, domination, donathan, donation, downtime, downtown, dundon, dunedin, dunton