Alveolar bone: The part of the jaw that surround the roots of the teeth.
Appropriate education: Acquisition of the knowledge and skills required to provide specific dental hygiene services at an entry-level standard of competence. Appropriate education provides a theoretical and practical foundation for competent, legal, ethical, and professional practice. For some services, appropriate education is the successful completion of a formal education course; for others, reading literature or watching a demonstration video is considered appropriate. Professional judgment is required. If registrants are not able to competently perform a previously learned skill or a new technology or practice, they must abstain from providing that service to a client until appropriate education can be obtained.
Assessment: Involves the gathering or updating of information relating to the client’s general and oral health, including the hard and soft tissues of the head, neck, and oral cavity. The dental hygienist will obtain this information by completing some or all of the following assessment procedures: medical and dental history, including wellness habits such as nutritional issues and use of tobacco and/or alcohol products; vital signs; examination of head, neck, and intra-oral soft tissues; periodontal, dental, and occlusal examination; diagnostic tests which may include pulp vitality or bacterial/enzyme tests to determine caries risk and periodontal disease; radiographic implementation and interpretation (x-rays); dental impressions for study models; intra-oral and extra-oral dental photographs; and preparing biopsy specimens for lab analysis.
Bacterial endocarditis: Inflammation of the membrane (endocardium) lining the inside of the heart and the heart valves, caused by bacterial infection. Symptoms include fever and changes in heart rhythms; damage to heart valves may occur. Treatment consists of bed rest, antibiotics, and surgery, if necessary, to treat damaged valves.
Calculus: Hard deposit of mineralized material adhering to crowns and/or roots of teeth.
Caries: Commonly used term for tooth decay.
Cementum: Hard connective tissue covering the tooth root.
Debridement: Removing foreign matter or dead tissue.
Dental hygienist: A registered oral health professional who performs some or all of the following procedures in a variety of health care settings, including private practice, long-term care, public health, education, research, and administration:
- implement the dental hygiene process of care which includes conducting an initial dental hygiene assessment, planning treatment, implementing the plan, and evaluating the treatment;
- consult with other health care providers on patient care;
- take dental impressions;
- instruct patients regarding oral hygiene procedures and disease prevention;
- clean above and below the gums to prevent gum disease;
- remove stains and deposits from teeth to prevent tooth and root decay;
- apply fluoride and/or other therapeutic treatments;
- take and develop X-rays;
- may perform restorative and orthodontic procedures in collaboration with a dentist;
- may work collaboratively with dental assistants, denturists, dental technicians, and/or dentists in their health care functions.
The professional role of a dental hygienist involves five primary responsibilities: clinical therapy, health promotion, education, administration, and research.
Dentin: That part of the tooth that is beneath enamel and cementum.
Gingiva: Soft tissues overlying the crowns of unerupted teeth and encircling the necks of those that have erupted (pushed through the gums).
Gingivitis: Inflammation of gingival tissue without loss of connective tissue.
Hepatitis B Virus (HBV): A viral infection 50 to 100 times more infectious than HIV, transmitted through contact with the blood or other body fluids of an infected person; attacks the liver and can cause both acute and chronic disease. About 2 billion people worldwide have been infected with the virus and about 350 million live with chronic infection. An estimated 600,000 persons die each year due to the acute or chronic consequences of hepatitis B (liver cancer or cirrhosis/scarring of the liver). Hepatitis B is preventable with a safe and effective vaccine.
Interproximal: Between the teeth.
Intraoral: Inside the mouth.
Lingual: Pertaining to or around the tongue; surface of the tooth directed toward the tongue; opposite of facial.
Malocclusion: Improper alignment of biting or chewing surfaces of upper and lower teeth.
Maxilla: The upper jaw.
Occlusal: Pertaining to the biting surfaces of the premolar and molar teeth or contacting surfaces of opposing teeth or opposing occlusion rims.
Occlusion: Any contact between biting or chewing surfaces of maxillary (upper) and mandibular (lower) teeth.
Oral mucosa: The pink-red tissues that line the mouth.
Periodontal: Pertaining to the supporting and surrounding tissues of the teeth.
Periodontal abscess: An infection in the gum pocket that can destroy hard and soft tissues.
Periodontal disease: Inflammatory process of the gingival tissues and/or periodontal membrane of the teeth, resulting in an abnormally deep gingival sulcus, possibly producing periodontal pockets and loss of supporting alveolar bone.
Periodontal pocket: Pathologically deepened gingival sulcus; a feature of periodontal disease.
Periodontitis: Inflammation and loss of the connective tissue of the supporting or surrounding structure of teeth with loss of attachment.
Plaque: A soft, sticky substance composed largely of bacteria and bacterial derivatives which accumulates on teeth.
Premedication: The use of medications prior to dental procedures.
Prophylaxis: Scaling and polishing procedure performed to remove coronal plaque, calculus, and stains.
Root planing: A procedure designed to remove microbial flora, bacterial toxins, calculus, and diseased cementum or dentin on the root surfaces and in the pockets at depths greater than 4mm to ensure that root surfaces are clean and smooth. Root planing may also involve the removal of superficial tooth/root substance at any depth.
Scaling: Removal of plaque, calculus, and stain from teeth.
Sealants: Plastic resin placed on the biting surfaces of molars to prevent bacteria from attacking the enamel and causing caries.
Stomatitis: Inflammation of the membranes in the mouth.
Temporomandibular Joint Dysfunction (TMJ): Abnormal functioning of temporomandibular joint (the connecting hinge mechanism between the base of the skull, or temporal bone, and the lower jaw, or mandible; also refers to symptoms arising in other areas secondary to the dysfunction.
For detailed definitions and information about many dental conditions, visit the American Dental Association’s Glossary of Dental Terms, the Dental Advice Index, the American Dental Association’s Oral Health Topics, or see above Associations/Other.