Registered dental hygienists (RDHs) are licensed oral health professionals who provide preventative dental care services and oral health care assessments. Those patients with orthodontics or those who have difficulty getting their teeth properly cleaned will receive the expert care a registered dental hygienist can deliver because of their education. They work closely with dental assistants and dentists, but they are primarily responsible for cleaning teeth and performing dental examinations. Unlike dental assistants, who work directly with dentists, hygienists often see patients on their own and direct their own tasks. Registered Dental hygienists also educate patients on ways to improve and maintain good oral health.