Where are sealants primarily placed in the mouth?

Sealants are primarily placed in the pits and fissures of the molars and premolars, as these areas are most prone to caries (tooth decay). The occlusal surfaces of these posterior teeth have unique grooves and depressions that can trap food particles and bacteria, making them more susceptible to cavities. By applying a sealant to these specific areas, dental professionals create a barrier that helps prevent plaque accumulation and protects the underlying enamel from decay.

Placing sealants on smooth surfaces, all surfaces, or only between teeth does not address the highest risk areas for dental issues. Smooth surfaces are less likely to develop cavities compared to the intricate anatomy found in the pits and fissures. Similarly, applying sealants to all surfaces or only between teeth does not specifically target the most vulnerable locations where decay typically begins. Thus, the focus on pits and fissures ensures optimal protection for a patient's dental health.