Oklahoma Pit and Fissure Sealants State Practice Exam

What happens to the number of bacteria in small caries lesions over time?

1. Increases

2. Decreases

3. Remains the same

4. Fluctuates frequently

The correct answer is: Decreases

In the context of small caries lesions, the number of bacteria typically decreases over time when appropriate interventions are implemented. This reduction in bacterial count can occur due to several factors. First, if the caries are detected early and treated promptly—whether through fluoride treatments, the application of sealants, or restorative procedures—these methods can help to halt the progression of decay and reduce the bacterial population. The application of fluoride, for example, can inhibit bacterial metabolism and promote the remineralization of enamel, leading to a healthier environment in the oral cavity. Second, improved oral hygiene practices by the patient can significantly lower the levels of harmful bacteria. Regular brushing and flossing, combined with professional dental cleanings, contribute to a healthier oral environment that is less conducive to bacterial growth. In contrast, if no action is taken, bacteria can proliferate, leading to more severe carious lesions, but in the scenario presented, the focus is on an optimal response to early caries lesions, illustrating how proactive dental care effectively reduces bacterial presence.