The American Dental Association (ADA) encourages dentists to consult an attorney before participating in any local deals, such as Groupon or LivingSocial. According to the ADA, this type of marketing might violate state laws that prohibit fee-splitting between a dentist and a third party. When advertising on Groupon, the dentist receives a portion of the payment for services, while Groupon receives the rest of the payment. For more information, read the ADA’s Statement on Dental Groupons.