100
Participants
Start Date
October 1, 2015
Primary Completion Date
July 1, 2016
Study Completion Date
July 1, 2016
Cetylpyridinium Chloride (CPC)
Two study groups take CPC of 1.5mg and 4.5mg daily for four weeks.
placebo
Control group takes the placebo for the same period.
Seoul National University College of Medicine, Seoul
Seoul National University Hospital
OTHER