NCT02849925.

Trial name or title	Randomized Controlled Clinical Trial on the Treatment of Caries Lesions Using Resin or Glass Ionomer Sealants in Permanent Teeth
Methods	RCT, parallel assignment, follow‐up 18 months
Participants	Children aged from 6 to 12 years with at least one ICDAS 3 lesion in first permanent molars
Interventions	Glass ionomer sealant versus resin‐based sealant
Outcomes	Number of lesions that evidence progression of caries by a higher ICDAS code, percentage of sealants that were intact
Starting date	March 2015
Contact information	Dr RA Giacaman, University of Talca, Chile
Notes

RCT = randomised controlled trial.