While there is no limit to how many referrals you can make, our Sharing Smiles Referral Program limits the $50 credit to one per immediate family, when you are referring your spouse or children. However, feel free to refer extended family (aunts, uncles, cousins, grandparents etc.), friends, co-workers, neighbors and church members - anyone else you like - and collect unlimited rewards! A successful referral requires that the new patient completes an exam, X-rays and a cleaning. The credit can not be used toward retail purchases, is non-transferrable and not redeemable for cash.