Prototype KG‑aware adaptation of the BioPortal interface. Graph pages generated from live KG‑Registry metadata; tool links go to the live BioPortal.
Home/ Graphs/OHD

OHD

OK

The Oral Health and Disease Ontology

KGXBioPortal ontologyv2026-03-16CC BY 4.0
Visibility: Public

A KGX transformation of the BioPortal ontology The Oral Health and Disease Ontology (OHD), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them.

Graph at a glance

2,325
Nodes
7,280
Edges
2026-03-16
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
OHD.tar.gz
2K nodes · 7K edges
Base graph is the full graph

This ontology declares no imports, so its base graph already is its full graph; nothing separate was built.

The graph contains OHD_nodes.tsv and OHD_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 11 categories across 2,325 nodes

NamedThing710
AnatomicalEntity387
PhysicalEntity383
Activity339
InformationContentEntity324
MolecularEntity53
BiologicalProcessOrActivity46
Procedure36
Attribute20
ChemicalEntity20
EnvironmentalFeature7

An item carrying more than one category is counted under each, so these counts can add up to more than the total.

How they were assigned 1,615 of 2,325 nodes (69.5%)

11is a seed term whose Biolink class is not in doubt
1,601inherits from a seed term above it in the hierarchy
3takes the category of a term it is mapped to by exact match

Biolink categories 1 category across 7,280 edges

Association7,280

An item carrying more than one category is counted under each, so these counts can add up to more than the total.