Oral appliances work non-surgically to open the airway during sleep by realigning the tongue and jaw in relation to the head. Their role is to prevent the snoring and/or obstructive apnea during sleep and they must be worn each night to produce the desired effect. More than 60 types of oral appliances have been marketed but two specific types have been found to be most effective dependent on each specific airway and mouth as evaluated by the dentist/orthodontist.

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