Disease or Syndrome
impacted tooth
[ im-pak-tid tooth ]
Subclass of:
Tooth Diseases
Definitions related to impacted tooth:
  • (impaction) A condition in which a tooth is so crowded in its socket that it cannot erupt normally.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • A tooth that has not erupted because of local impediments (overcrowding or fibrous gum overgrowth).
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2021
  • (tooth, impacted) A tooth that is prevented from erupting by a physical barrier, usually other teeth. Impaction may also result from orientation of the tooth in an other than vertical position in the periodontal structures.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Impacted teeth are teeth that are unable to emerge (erupt) properly from the gum. Impaction is usually caused by the overcrowding of teeth, which leaves insufficient room for a new tooth to emerge. Impaction can occur when a baby tooth is lost before the new tooth is ready to emerge, which allows the remaining teeth to drift into the...
    Merck Manuals
    Merck & Co., Inc., 2020
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.