National Board Dental Hygiene Examination (NBDHE) Dental Hygienist Practice Test

Approximately what percentage of adults has experienced root caries?

1. 10%

2. 25%

3. 50%

4. 75%

The correct answer is: 25%

The choice indicating that approximately 25% of adults have experienced root caries is aligned with research and epidemiological studies that suggest a significant proportion of the adult population, particularly older adults, faces this dental issue. Root caries is primarily associated with gingival recession, which exposes the roots of teeth to the oral environment, making them vulnerable to decay. As people age, the incidence of gingival recession tends to increase due to factors such as periodontal disease, poor oral hygiene, or aggressive brushing techniques. Consequently, the exposure of root surfaces is more prevalent among older adults, culminating in a higher likelihood of experiencing root caries. Studies have shown that while the prevalence can vary based on specific demographics and regions, estimating around 25% provides a reasonable approximation that reflects these patterns in adult dental health. Understanding this statistic is crucial for dental hygienists as it underlines the importance of preventive measures, including education on proper oral hygiene practices and regular dental check-ups, particularly for aging populations.