supernumerary teeth

Überzählige
Zähne im rechten Unterkiefer, retiniert zwischen 44 und 45.
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Röntgenbild
mit Hyperdontie
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Two
supernumeray teeth at premaxilla; Mesiodens
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Überzählige,
retinierte Zähne
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The spectrum
of Apert syndrome: phenotype, particularities in orthodontic treatment, and characteristics of orthognathic surgery. Age 10.8. Panoramic x-ray. Situation after extrusion of upper central incisors. Lack of space for 13, 23, 38, 33, 43, and 48; transposition of 22 and 23, second (supernumerary) canine in region 24, agenesis of 25. Ectopic position of 27.
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Supernumerary teeth (hyperdontia) are extra tooth to the standard series of either primary or permanent teeth.

Terminology

The term supplemental tooth may be used when the supernumerary tooth resembles its associated normal tooth and the term peridens may be used for an ectopically erupted (e.g. buccal or lingually) supernumerary tooth . Mesiodens refers to a supernumerary tooth in the midline between the central incisors .

Epidemiology

Supernumerary teeth occur in ~2.5% (range 0.1-5.3%) of the population with a 2:1 M:F in adults with permanent teeth .

Pathology

The etiology of supernumerary teeth is unknown . They may arise anywhere in the mandible or maxilla and may be:

  • unilateral or bilateral
  • single or multiple
  • erupted or unerupted
Associations

Multiple supernumerary teeth are associated with:

Siehe auch:
Assoziationen und Differentialdiagnosen zu überzählige Zähne:
Kleidokraniale
Dysplasie
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Zahn
 
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Röntgenstatus
 
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Malformationen
der Zähne
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