502
Participants
Start Date
December 31, 2007
Primary Completion Date
December 31, 2010
Study Completion Date
December 31, 2010
placement of fissure sealant
placement of resin-based fissure sealant at baseline without replacement
fluoride varnish
topical applications of a 5% sodium fluoride (NaF) varnish onto tooth surface every 6 months
silver fluoride
topical applications of a 38% silver diamine fluoride (SDF) solution onto tooth surface every year
placebo control
application of water onto tooth surface every year
The University of Hong Kong, Hong Kong
The University of Hong Kong
OTHER