Oral hygiene is the practice of keeping the mouth and teeth clean to prevent dental problems, especially the common dental caries and gingivitis, and bad breath. There are oral pathologic conditions in which a good oral hygiene is required for healing and regeneration of the oral tissues.
Teeth cleaning is the removal of dental plaque and tartar from teeth to prevent cavities, gingivitis, and gum disease. Severe gum disease causes at least one-third of adult tooth loss.
A dental hygienist (also called oral hygienist) is a licensed dental professional who specializes in preventive oral health, typically focusing on techniques in oral hygiene. Local dental regulations determine the scope of practice of dental hygienists. In most jurisdictions, hygienists work for a dentist, and some are licensed to administer local anesthesia. Common procedures performed by hygienists include cleanings known as prophylaxis, scaling and root planing for patients with periodontal disease, taking of prescribed radiographs, dental sealants, administration of fluoride, and providing instructions for proper oral hygiene and care.