Review photos, get references.

A serious dentist will photograph every cosmetic case in order to evaluate and scrutinize the final results effectively. Examine the dentist's treatment results on other patients to make sure his or her work fits your dental needs. Many successful dentists have professionally designed websites that showcase the results of their work and contain information on the various cosmetic procedures they provide.

The dentist should also be able to provide you with a reference list of patients who have had similar treatment. Talk to them personally about their experience at the practice and how they feel about their final results.