In Thailand, fluoride varnish and gel are used in both private and public dental services. A national guideline on the use of
fluorides is being developed. Application of 5% sodium fluoride varnish is indicated for children with moderate to high caries risk and is recommended for use in children under 3 years of age, and in those who do not cooperate with fluoride gel application. Fluoride varnish application is also included in the benefit package of some projects for preschool children. Fluoride gel application is used in a clinical setting and is recommended for children age 3 years or above who are at moderate to high caries risk.