Clinical Evidence The SomnoMed® Preferred Dental Network is a group of over 2500 sleep dentists with experience in fitting  patients for oral devices for the treatment of obstructive sleep apnea. SomnoMed provides lists of dentists in the network to local sleep physicians for referral purposes. Based on volume, SomnoMed offers 3 levels of value added services.If you have questions about how you can be a part of SomnoMed’s PDN, please call 1-888-447-6673, option 4 to speak to a representative.