치위생사, or dental hygienist, is a healthcare professional who specializes in oral health. They work alongside dentists to provide preventive care, including teeth cleaning, fluoride treatments, and patient education about proper oral hygiene practices. Their goal is to help patients maintain healthy teeth and gums, preventing dental diseases. In addition to clinical duties, 치위생사 also play a vital role in educating patients about the importance of regular dental check-ups and good oral hygiene habits. They may work in various settings, such as dental offices, hospitals, or community health programs, contributing to overall public health and wellness.