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toothache

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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.

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tooth and nail syndrome

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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.

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tooth bleaching

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

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toothbrushing

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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.

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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.

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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.

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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.

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tooth numbering system

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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).

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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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