TARTAR:
Common term for dental calculus, a hard deposit that adheres to teeth; produces rough surface that attracts plaque.

TMD (or TMJ DISORDER):
Temperomandibular disorder; term given to condition characterized by facial pain and restricted ability to open or move the jaw.

TMJ:
The temporomandibular joint, the point where the lower jaw attaches to the skull.

THIRD-PARTY PROVIDER:
Insurance company, union, government agency that pays all or a part of cost of dental treatment.

TOOTH BUD:
Early embryonic structure that becomes a tooth.

TOOTH WHITENING:
A chemical or laser process to lighten the color of teeth.

TOPICAL ANESTHETIC:
Ointment that produces mild anesthesia when applied to tissue surface.

TORUS:
Common bony protuberance on the palate or lower jaw.

TRANSPLANT:
Placing a natural tooth in the empty socket of another tooth.

TRAUMA:
Injury caused by external force, chemical, temperature extremes, or poor tooth alignment.

TRENCH MOUTH:
Gum disease characterized by severe mouth sores and loss of tissue. See ANUG.

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