Describe the primary purpose of dental floss.

The primary purpose of dental floss is to remove plaque and food particles from between teeth where toothbrushes cannot reach. Dental floss is designed to fit between the narrow spaces of adjacent teeth, effectively cleaning areas that a toothbrush may miss. This interdental cleaning is crucial for preventing the buildup of plaque, which can lead to cavities and gum disease if not addressed. Regular use of dental floss helps maintain optimal oral hygiene by ensuring that these hard-to-reach areas are cleaned, contributing to overall dental health and reducing the risk of periodontal issues.

While other options like whitening teeth, strengthening gums, or freshening breath can be related to aspects of oral care, they do not encompass the fundamental role that dental floss plays in achieving a thorough clean between teeth and maintaining gum health.