HOSA Dental Terminology Practice

What is the purpose of pit and fissure sealant application?

1. To improve tooth color

2. To create a protective barrier on chewing surfaces

3. To reduce sensitivity in teeth

4. To remove plaque from deep grooves

The correct answer is: To create a protective barrier on chewing surfaces

The application of pit and fissure sealants serves a critical function in dentistry—creating a protective barrier on the chewing surfaces of teeth, particularly molars and premolars. These areas often contain deep grooves and pits that can trap food particles and bacteria, leading to dental caries (cavities). By sealing these vulnerable areas, sealants help to prevent the accumulation of food and plaque, thus reducing the likelihood of decay. This barrier effectively shields the enamel from acids produced by bacteria, which are responsible for tooth decay. This preventive measure is especially beneficial for children and adolescents, who may be more susceptible to cavities due to variances in brushing habits and maturity in oral hygiene practices. Improving tooth color, reducing sensitivity in teeth, or removing plaque are not primary purposes of sealant application. While these aspects can be related to overall dental health and aesthetics, they do not encapsulate the main role of sealants, which is specifically to protect teeth from decay in those difficult-to-clean areas.