ISRCTN17029222.

Trial name or title	Randomised trial to determine relative cost and effectiveness of pit and fissure sealants and fluoride varnishes for preventing dental decay
Methods	Prospective 2‐arm randomised controlled trial
Participants	Children 6 to 7 years of age with ≥ 1 fully erupted caries‐free first permanent molar
Interventions	Pit and fissure sealant vs fluoride varnish
Outcomes	Primary outcomes: (1) development of dental caries on occlusal surface of first permanent molars at 36 months; (2) cost‐effectiveness
Starting date	01/06/2011
Contact information	Prof Ivor Chestnutt, Cardiff University Dental School
Notes