23
Participants
Start Date
August 7, 2014
Primary Completion Date
July 8, 2016
Study Completion Date
December 7, 2016
placebo
participants took placebos (pills made by starch) that were told to be an effective analgesic.
orthodontic elastic separators
Orthodontic pain was introduced by placement of orthodontic elastic separators to the mesial and distal sides of the right mandibular first molar.
West China Hospital
OTHER