As an example, I am a member of the American Academy of Dental Sleep Medicine (AADSM), to name a few. (See my bio with the full list here.) I am not an ADA-registered dentist, however-- I think their referrals on things such as fluoride and amalgam dental fillings aren't evidence-based. The dental professionals in the AADSM, and also other comparable companies, are completely qualified Physicians of Dental care. This association focuses much interest, study as well as training in the area of dental sleep medicine, consisting of sleeping disorders and also dental home appliances that can be used to deal with and turn around rest conditions.