Dental sealants are a safe and effective way to prevent tooth decay in occlusal surfaces. Efficient and effective suctioning is essential for successful application of resin dental sealants. However, when using glass ionomer sealants, there is no need to maintain a dry field during the application process. Isolating the working field may be difficult with some children who have oral motor dysfunction. The air syringe may also trigger a startle reflex.
Children who severely grind their teeth (e.g., because of cognitive disabilities, cerebral palsy, or autism) may not be candidates for dental sealants because of the flattened occlusal surfaces.