Dental Admissions Test (DAT) 2025 – 400 Free Practice Questions to Pass the Exam

The primary purpose of dental sealants is to prevent cavities. Sealants are thin coatings applied to the chewing surfaces of the back teeth, primarily the molars, which have deep grooves and pits that can trap food and bacteria. These areas are often difficult to clean effectively with a toothbrush, making them more susceptible to decay. By sealing these vulnerable spots, dental sealants act as a barrier, inhibiting the accumulation of plaque and food particles, thereby significantly reducing the risk of cavities in these hard-to-reach areas.

Whitening teeth relates to cosmetic dentistry and is not part of what sealants aim to achieve. Enhancing tooth structure is more about restorative procedures like fillings or crowns, rather than the protective nature of sealants. Lastly, while dental sealants can contribute to overall oral health, their design is not specifically aimed at reducing sensitivity, which is typically addressed through other treatments. Therefore, the function of sealants as a preventive measure aligns closely with their primary role in promoting dental health.