A
ABSCESS – a local infection. A Severe decay, periodontal disease, or trauma are causative factors. It is characterized by swelling and pain. If an abscess ruptures, it will be accompanied by sudden relief from pain due to a reduction in ssure. A foul taste may also be noticed.
ABUTMENT – a term used to denote the teeth on either side of a missing tooth.
ACRYLIC RESIN – the plastic widely used in dentistry to make dentures.
ACTIVE ERUPTION – the emergence of the tooth from its position in the jaw.
ADHESION – the sticking together of unlike substances
ADJUSTMENT – a modification made upon a dental prosthesis after it has been completed and inserted into the mouth.
AEROBIC BACTERIA – bacteria which grow in oxygen rich environments; in the oral cavity the bacteria are found outside the sulcus.
AFFERENT – nerves that carry sensory messages toward the brain.
AGAR – a gelatin like substance obtained from seaweed; used in impression materials.
ALGINATE – an impression material used by dentists for making stone models.
ALVEOLECTOMY – an operation where portions of the alveolar bone are removed.
ALVEOLAR BONE – the bone surrounding the root of the tooth; loss of this bone is typically associated with severe periodontal disease.
ALVEOLAR CREST – the highest portion of alveolar bone.
ALVEOLAR EMINENCE – outline of the root on the facet portion of the bone.
ALVEOLAR PROCESS – the portion of the mandible or maxilla that surrounds the root of a tooth.
ALVEOLUS – the bony socket in which the root of the tooth sits.
AMALGAM – or silver filling; an alloy in which one of the metals is mercury. Below are the approximate percentages of the component elements:
Mercury Hg 50%
Silver Ag 35%
Tin Sn 13%
Copper Cu 0-3%
Zinc Zn 0-1%
ANAEROBIC BACTERIA – bacteria that do not need oxygen to grow; they are generally associated with periodontal disease.
ANODONTIA – the developmental absence of teeth.
ANTIBIOTIC – substance produced by or derived from bacteria which is able to inhibit or kill other bacteria.
ANTIMICROBIAL – destroying or inhibiting the growth of bacteria.
ANATOMICAL CROWN – the portion of the tooth that is covered with enamel.
ANTISCEPTIC – A chemical agent which can be applied to living tissues to destroy germs.
ANESTHESIA – medication which relieves the sensation of pain.
ANNIVERSARY YEAR – begins on the day of the month that the patients’ insurance became effective.
ANOMALY – a deviation from the normal or expected outcome.
ANTAGONIST – a structure that opposes or counteracts another structure.
ANTERIOR – situated in front of.
ANTERIOR TEETH – the front teeth (incisors and cupids).
ANUG – Acute Necrotizing Ulcerative Gingivitis. An acute, painful condition characterized by severe gingival redness, spontaneous bleeding, foul breath and pain.
APEX – the pointed extremity of a structure.
APICAL FORAMEN – the opening at the end of the root of a tooth through which the tooth receives its nerve and blood supply.
APPOSITION – the laying down of, or addition of.
ARCH – a curvature; both the maxillary and mandibular ridge form a horseshoe shaped arch.
ARTICULATING PAPER – carbon paper; placed between the upper and lower teeth to mark contact.
ARTICULATOR – a mechanical device used to replicate functional movements of the jaw to casts.
ASSIGNMENT OF BENEFITS – a clause in an insurance policy that allows the insured person to direct the carrier’s payment to the dentist.
ASPIRATOR – The tube-like straw which the dentist place in your mouth for suction.
ASYMMETRY/ SYMMETRY – To be esthetic, tooth Size, shape and gum contour should be as close to identical from one side of the mouth to the other. Ideally, the incisal edges of your teeth should follow the contour of the upper lip.
ATTACHMENT LEVEL – a numerical measure of the amount of attachment of the periodontal ligament to a tooth; the number is generally determined by combining a pocket depth measurement with a measurement of gingival recession. Attachment level is considered one of the most important measures of periodontal disease progress or treatment success
ATTRITION – the wearing away of tooth structure through normal use (ie. chewing, biting, etc.).
AXON – the process that carries impulses away from the cell body of a nerve.