RDH

Registered Dental Hygienist (RDH) is a licensed oral health professional who provides preventive and therapeutic dental care under the supervision of a dentist. RDHs focus on maintaining the health of a patient’s teeth and gums through assessment, planning, and treatment that emphasizes prevention.

Typical duties include performing dental prophylaxis (cleanings), scaling and root planing in appropriate cases, taking dental radiographs, applying preventive agents such as fluoride and sealants, and providing patient education on oral hygiene, diet, and tobacco cessation. They may also perform periodontal charting and assist with preventive health programs. Role and independence vary by jurisdiction; in many places RDHs work under the supervision of a dentist, but some regions allow direct access to patients or independent practice. The exact scope of practice and permitted procedures differ by country, state, or province.

Education and licensure requirements are similarly variable but most RDHs complete an accredited dental hygiene program, typically an associate degree, with some pursuing bachelor’s or master’s degrees. In the United States, licensure generally requires passing the National Board Dental Hygiene Examination and a state or regional clinical examination; continuing education is typically required for license renewal.

Work settings commonly include private dental offices, public health clinics, schools, and hospitals. RDHs assess patients, perform screenings, provide preventive care, maintain dental records, and refer to a dentist when treatment beyond preventive care is indicated. They function as integral members of the dental care team, collaborating with dentists and other allied professionals to promote oral health.