1 Gives you the flexibility to talk and drink, as well as close your mouth and breathe during sleep, 2 unlike some other appliances. 2  Patient satisfaction. 3  Users reported wearing the appliance 6.7 hours per night, 6.6 days per week.
Definition of vesting. : the conveying to an employee of inalienable rights to money contributed by an employer to a pension fund or retirement plan especially in the event of termination of employment prior to the normal retirement age; also : the right so conveyed.
Vesting essentially means, in the case of restricted stock, the lapse of the risk of forfeiture on such share ownership, or, in the case of stock options, earning the right to exercise the option. In the case of restricted stock, the term comes into play when the shares are subject to a risk of forfeiture.