California Registered Dental Assistant (RDA) Written Practice Exam

Sealants are typically placed in the pits and fissures (indentations) of the teeth, not on the tooth's surface or in cavities. This is because these deep grooves can be difficult to clean properly, making them more prone to decay. Dental implants, which are artificial teeth root replacements, do not typically require sealants as they are not natural teeth with pits and fissures.