National Dental Assisting Examining Board (NDAEB) Practice Exam

Sealants are indicated for which of the following conditions?

1. Active caries throughout childhood

2. Teeth with deep pits and fissures

3. Patients over 50 years old

4. All teeth regardless of age

The correct answer is: Teeth with deep pits and fissures

Sealants are a preventive dental treatment primarily used to protect the surfaces of teeth, especially molars, from decay. They are particularly indicated for teeth with deep pits and fissures because these anatomical features are prone to plaque accumulation and caries development. The application of sealants creates a smooth surface that makes it more difficult for food particles and bacteria to settle, thereby reducing the risk of cavities in those vulnerable areas. Active caries throughout childhood do not warrant sealants; instead, they require restorative treatment. Similarly, while older patients may benefit from preventative measures, the presence of sealants is more relevant for younger individuals who are still developing their dental hygiene habits. Furthermore, sealants should not be applied to all teeth indiscriminately; they are most effective when used on teeth with specific conditions that heighten the risk of decay, such as deep pits and fissures. Thus, the focus on teeth with deep pits and fissures underscores the targeted nature of sealant applications in dental care.