Bob Greene : Dentist in Iowa has ingenious way of boosting his business . He says dentist set up a thriving practice at a busy truck stop on Interstate 80 . Greene : You may not have the answer for how to thrive in a lousy economy . Greene ensures there will be some truckers in need of dental care . He says the dentist ' n't rely on return business from his patients .
Bob Greene : Dentist in Iowa has ingenious way of boosting his business . He says dentist set up a thriving practice at a busy truck stop on Interstate 80 . Greene : Greene ensures there will be some truckers in need of dental care . He says the dentist ' n't rely on return business from his patients .