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Term:Increased number of teeth
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Accession:HP:0011069 term browser browse the term
Definition:The presence of a supernumerary, i.e., extra, tooth or teeth.
Comment:The most frequent supernumerary tooth is a mesiodens, which occurs between the two maxillary central incisors. Often it fails to erupt, but creates a large anterior diastema, and would not be detected on physical examination (requires X-ray evaluation). This designation excludes coexistence of primary and permanent dentition due to delayed loss of the former. Note that this term does not refer to the situation in which two rows of teeth are seen at the time of eruption of permanent dentition before exfoliation of primary teeth, which can be a normal finding.
Synonyms:exact_synonym: Extra teeth;   Hyperdontia;   Increased tooth count;   Supernumerary teeth;   Supernumerary tooth;   Supplemental dentition;   Supplemental teeth
 narrow_synonym: Supernumary dentition;   Supernumary teeth
 related_synonym: More teeth than normal
 alt_id: HP:0000672
 xref: MSH:D014096;   SNOMEDCT_US:266414008;   SNOMEDCT_US:367534004;   SNOMEDCT_US:8666004;   UMLS:C0040457

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of head or neck 0
        Abnormality of the head 0
          Abnormality of the face 0
            Abnormality of the mouth 0
              Abnormal oral morphology 0
                Abnormal oral cavity morphology 0
                  Abnormality of the dentition 0
                    Abnormal number of teeth 0
                      Increased number of teeth 0
                        Mesiodens 0
                        Supernumerary maxillary incisor 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.