Rare diseases · Sign or symptom

Microdontia of primary teeth

Decreased width of baby teeth

HP:0006347

What it means

Decreased size of the primary teeth.

Rare diseases that can present with this3

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Abnormal primary tooth morphologyMicrodontia

Also called: Decreased size of primary tooth · Decreased width of deciduous teeth · Decreased width of milk teeth · Decreased width of primary tooth · Microdontia of deciduous teeth · Small deciduous teeth · Underdevelopment of primary teeth

Microdontia of primary teeth

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.