Protocol for a Cluster-Randomized Controlled Trial on the Effectiveness of Fluoride Varnish in Preventing Dental Caries Among Rural School Children in Namkum, Ranchi.

Background: Dental caries is a prevalent oral health issue among children, particularly in underserved rural areas. This cluster-randomized controlled trial aims to assess the effectiveness of fluoride varnish in preventing caries in first permanent molars among schoolchildren in Namkum, Ranchi.

Methods: A total of 600 children (6-7 years old) from 16 rural schools will be randomized into intervention (fluoride varnish) and control groups.