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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Oral synechia
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Accession:HP:0010285 term browser browse the term
Definition:Fibrous band between the mucosal surfaces of the upper and lower alveolar ridges.
Comment:These bands must be distinguished from synechiaee between the tongue and palate (glossopalatal ankylosis) and from synechiae arising from the floor of the mouth (as in the subglossopalatal membrane), oropharyngeal isthmus (as in persistent buccopharyngeal membrane) or from the lower lip. If there is a complete soft tissue contiguity between the upper and lower alveolar ridges, the term, Fibrous syngnathia should be used instead.
Synonyms:exact_synonym: Synechiae of the mouth
 broad_synonym: Oral fibrous bands
 xref: UMLS:C4023921

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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
                  Abnormal oral mucosa morphology 0
                    Oral synechia 0
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