October 26, 2021 7:30 PM ET



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You are invited to attend RCDC’s upcoming webinar on Tuesday, October 26, 2021 at 7:30 pm EDT.

Dr. Sylvain ChamberlandConsideration of Maxillary Skeletal Expansion (MSE) and Mandibular Symphyseal Distraction Osteogenesis (MSDO) for the Treatment of Sleep Apnea and Snoring 

Patients who are predisposed to obstructive sleep apnea (OSA) often have upper airway obstruction in the nasopharynx or the oropharynx. Mandibular advancement and tongue-restraining devices are usually effective options for the management of OSA in selected patients. However, positive airway pressure therapy is considered the gold standard treatment for the management of OSA in adults. Maxillomandibular advancement surgery is an effective surgical technique for treatment of moderate to severe OSA. The role of the transverse maxillomandibular dimension (TMMD) in OSA is not fully understood, but recent reports appear to confirm that normalizing TMMD may assist in the treatment of OSA. With the help of two case reports, this manuscript reviews the mechanics used to change TMMD. These cases illustrate that patients may benefit from just increasing the TMMD alone, or both TMMD and anteroposterior measurements, if they experience snoring and OSA. TMMD followed by bimaxillary advancement, when indicated, might be more effective than maxillomandibular advancement alone.

Dr. Ben PliskaAirway Imaging and Obstructive Sleep Apnea – More than just a pretty picture?

The orthodontic profession has become well aware of the health implications of obstructive sleep apnea, however the role that airway imaging can play in disease management is less well understood. This presentation will review and highlight the relationship between upper airway anatomy and function, as well as discuss the limitations of current CBCT imaging as a quantitative tool in airway assessment. 

RCDC Fellow/Member – FREE
Non-member – $50 (proceed to register and an invoice will be sent in a separate email automatically)



Dr. Sylvain Chamberland

Québec, QC


Dr. Ben Pliska

Vancouver, BC


Dr. Jennifer MacLellan

Halifax, NS