Rare diseases · Sign or symptom
Abnormal cementum morphology
HP:0100717
What it means
Any structural anomaly of the cementum, which is the mineralized connective tissue covering the dental root. The cementum allows anchoring of the fibers of the periodontal ligament. Cementum is secreted by cementoblasts, which may be, later on, embedded in the cementum. Cementum can be acellular (along the two third coronal portion of the root) and cellular (in the apical and interradicular part of the root).
Rare diseases that can present with this2
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: Abnormality of the cementum
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Start free with EleplanThis 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.