For what purpose are disclosing agents often preferred in dental hygiene?

Disclosing agents are primarily used to identify areas of plaque accumulation on teeth. They contain substances that temporarily stain biofilm or plaque, making it easier for dental hygienists, patients, and dental professionals to visually assess the cleanliness of the teeth and identify any areas that may need better oral hygiene practices. This visual feedback is essential for educating patients about effective brushing and flossing techniques, so they can improve their oral hygiene and reduce the risk of cavities and gum disease. The other choices relate to dental diagnostics and assessments that do not involve the use of disclosing agents, as x-ray interpretation, gum depth measurement, and fracture line identification are approached through different methods and tools in dentistry.