This presentation will review the key fundamentals of Sleep Medicine and how it applies to the obstructive sleep apnea patient. Specifically geared for a dental audience, we will examine the relationship between sleep disordered breathing and craniofacial growth and development, as well as the current evidence related to orthodontic imaging and treatment effects on obstructive sleep apnea and the airway. For adults, oral appliances have become an accepted first line of treatment for a wide range of patients suffering from obstructive sleep apnea. Dentists are ideally suited to deliver this increasingly popular OSA treatment modality and should be well aware of both the associated benefits and complications. This presentation will also discuss the latest evidence regarding the effectiveness of oral appliance treatment of OSA, as well as review the management of the most common side effects.