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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:Eruption failure
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Accession:HP:0000706 term browser browse the term
Definition:A tooth which does not erupt within the teeth eruption timeline and after the loss of eruption potential.
Comment:Usually a tooth erupts at a stage of half or two-thirds of root formation. There are established norms for the timing of eruption and tooth stages in both deciduous and permanent teeth. It may be difficult to discern Delayed eruption from failure of eruption: failure indicates it will never erupt, delayed indicates it may still erupt. Eruption failure may be caused by an isolated obstacle (supernumerary teeth), ankylosis of impacted teeth, or disturbances of biological eruption pathway. Partial or complete non-eruption of not initially ankylosed teeth due to a disturbed eruption mechanism result in a severe form of posterior open bite that usually worsens from anterior to posterior. Eruption failure is usually asymmetrical, affects more posterior teeth and both dentition may be involved. The diagnosis eruption failure requires clinical and radiographic examinations.
Synonyms:exact_synonym: Failure of eruption of tooth;   Pseudo-anodontia;   Pseudoanodontia;   Unerupted tooth
 broad_synonym: Unerupted dentition
 xref: SNOMEDCT_US:109542004;   UMLS:C1290587


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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
                    Abnormality of dental eruption 0
                      Eruption failure 0
                        Failure of eruption of permanent teeth 0
                        Impacted tooth + 0
                        Multiple unerupted teeth 0
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