80
Participants
Start Date
June 30, 2013
Primary Completion Date
November 30, 2013
Dexmedetomidine
Dexmedetomidine(4㎍/mL) : 0.5㎍/kg/hr infusion for 1 hour before operation is completed and 0.2-0.7㎍/kg/hr infusion continuously until 6:00am the next day.
Saline placebo
Normal saline 0.9% (guess as 4㎍/mL) : 0.5㎍/kg/hr infusion for 1 hour before operation is completed and 0.2-0.7㎍/kg/hr infusion continuously until 6:00am the next day
School and Hospital of Stomatology, Beijing
Peking University
OTHER