trained worker vs dental hygienist

Other hyponyms of trained worker include aquanaut, oceanaut, armorer, armourer, aeronaut, aviator, flier, flyer, baker, bread maker, balloonist, butcher, slaughterer, calligrapher, calligraphist, coiner, minter, moneyer, cook, artificer, artisan, craftsman, journeyman, crew member, crewman, cutter, draftsman, draftsperson, draughtsman, dyer, editor, editor in chief, electrician, lineman, linesman, engraver, aesthetician, esthetician, fisher, fisherman, founder, framer, fumigator, galvaniser, galvanizer, gilder, grip, harpooneer, harpooner, hunter, huntsman, indexer, laminator, lobsterman, lockkeeper, lockman, lockmaster, fixer, mender, repairer, funeral director, funeral undertaker, mortician, undertaker, mounter, functionary, official, oilman, lens maker, optician, painter, perfecter, phlebotomist, plaiter, plasterer, plater, power-station worker, power worker, pressman, printer, projectionist, refiner, preserver, refinisher, renovator, restorer, riveter, rivetter, router, crewman, sailor, man, military man, military personnel, serviceman, shearer, skinner, metalworker, smith, smith, technician, turner, turtler, voicer, vulcaniser, vulcanizer, wall-paperer, wallpaperer, wireman, wirer, tuner.