Oral appliances are only FDA approved and available for the treatment of sleep apnea through a qualified dentist. If you have not been tested for sleep apnea, a snoring appliance could stop the snoring without treating sleep apnea, and could possible make your sleep apnea worse.
Definition of unanimity. : the quality or state of being unanimous.
The extremity of a situation or of someone's behaviour is the degree to which it is severe, unusual, or unacceptable. In spite of the extremity of her seclusion she was sane. [+ of] In the past, the region had been protected by its forbidding geography and the extremities of its climate. [+ of] Only in extremity, when his defences had been reduced by six weeks of bombing, was he ready to leave. More Synonyms of extremity COBUILD Advanced English Dictionary.