Real-world effectiveness of national pit and fissure sealants program in Taiwan.

Objectives: This study investigated the effectiveness of a national population-based pit and fissure sealants (PFS) program in Taiwan.

Methods: Part 1 (effectiveness of national PFS program) involved children who had participated in the PFS program from 2015 to 2019. After propensity score matching, 670,840 children were selected for analysis until the end of 2019.