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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.
Term:Hypodontia
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Accession:HP:0000668 term browser browse the term
Definition:The absence of five or less teeth from the normal series by a failure to develop.
Comment:Hypodontia needs to be confirmed by X-rays. The terms hypodontia and oligodontia have been used interchangeably in literature but these define two different clinical entities. Hypodontia has been used to define exclusively the absence of permanent teeth and excluding third molars, but the absence of any deciduous and permanent teeth, including third molars, should be called hypodontia as well.
Synonyms:exact_synonym: Failure of development of between one and six teeth
 related_synonym: Missing between one and six teeth;   tooth agenesis
 xref: EFO:0005410;   SNOMEDCT_US:64969001;   UMLS:C0020608


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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
                      Tooth agenesis 0
                        Hypodontia 0
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