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toothache

Pain in a tooth or the region about a tooth. The origin of pain in a tooth may be physical, chemical, thermal, and bacteriological trauma. Treatment may include restorations, extractions, or topical application of medications, among others. SYN: dentalgia; odontalgia; odontodynia.

tooth and nail syndrome

A rare autosomal dominantly inherited syndrome characterized by malformed or absent teeth and defects in nail plate development. This syndrome is one of the ectodermal dysplasias. SYN: Witkop syndrome.

tooth bleaching

Use of an oxidizing chemical to remove stain or discoloration from a tooth. Bleaching techniques vary according to the vitality of the pulp.

toothbrushing

Cleaning the teeth and gums with a soft brush designed for that purpose. The toothbrush consists of tufts of soft, synthetic fibers or natural bristles mounted in a handle that may be straight or angled for better access or brushing action. It is usually used with fluoride toothpaste (a mildly abrasive, flavored dentifrice) in a manner suggested by dentists and dental hygienists as being suitable for cleaning. The proper use of a toothbrush stimulates periodontal tissue. SEE: oral hygiene; periodontal disease; dental plaque.

Good oral hygiene, consists of proper brushing of the teeth with a soft-bristle brush, using of a fluoridecontaining toothpaste, and using dental floss daily and will help prevent dental plaque. If brushing or flossing causes bleeding, pain, or irritation, a dentist should be seen without delay.

Some people with conditions that limit motion of their hands may have difficulty holding and using a toothbrush. This may be overcome by attaching the brush handle to the hand with a wide elastic band, or the handle may be enlarged by attaching a rubber or foam ball to it. Those with limited shoulder or elbow movement may find that lengthening the handle by attaching it to a long piece of wood or plastic is beneficial. In addition, an electric toothbrush may be of benefit.

Image not available. If the toothbrush used has hard bristles, or if any toothbrush is used too forcibly, gingival tissue may be eroded and damaged.

tooth numbering system

A system used to identify teeth. The American Dental Association recognizes two systems: one used in the U.S. (the Universal/National System), and the other in other countries (the International Standards Organization System).

t. n. s. International Standards Organization An internationally recognized system of tooth numbering in which teeth in each quadrant are identified by numbers 1 through 8. A second number indicates the quadrant. Quadrant 1 is the maxillary right quadrant; quadrant 2 is the maxillary left quadrant; quadrant 3 is the mandibular left quadrant; and quadrant 4 is the mandibular right quadrant. Tooth number 13, for example, indicates the maxillary right quadrant and the canine ...

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