Dental hygiene: it's "the 'in' thing" for "everybody on the young side of the generation gap!" Or so hopes this desperately hip short, which deploys "acid" rock music, solarized images, freeze-frames and other mod affectations (already dated in 1973) to urge molar awareness on the modern teen scene. Why not expend the same amount of care on your choppers that our floppy-haired high school hero does on his "cream-puff dune buggy" or that his paisley-mini-dressed chick does on her hair and makeup? After all, "Tooth decay can happen even in the loveliest mouth," we're told.