Rare diseases · Sign or symptom

Conical tooth

Cone shaped tooth

HP:0000698

What it means

An abnormal conical form of the teeth, that is, a tooth whose sides converge or taper together incisally.

A conical shape of a tooth occurs in incisors and canines only. Conical teeth may occur isolated or associated with other dental anomalies, such as hypodontia and oligodontia; this should be assessed and coded separately.

Rare diseases that can present with this8

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

Also called: Conical teeth · Conoid tooth · Peg shaped teeth · Peg shaped tooth · Peg tooth · Peg-shaped teeth · Peg-shaped tooth · Pointed tooth

Conical tooth

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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.