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Living with Trichodental syndrome

A rare genetic condition with thin, slow-growing hair and differences in the teeth, noticed in childhood.

Understanding Trichodental syndrome

Trichodental syndrome is a rare genetic condition of the ectodermal dysplasia group that affects hair and teeth.

People have sparse, fine, dry, slow-growing hair, with missing teeth, peg-shaped front teeth, and thin shell-like teeth. Mild intellectual disability, a small head, and distinctive facial features have also been reported. It is noticed in childhood.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet, but the summary describes these features:

  • Sparse, fine, dry, slow-growing hair
  • Fewer teeth than usual (oligodontia)
  • Peg-shaped front teeth
  • Thin 'shell' teeth
  • Mild intellectual disability in some people
  • Small head (microcephaly) in some people

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists, gum, teeth and mouth specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    National Foundation for Ectodermal Dysplasias may keep lists of experts for this condition.

Care & treatment

Care team
Genetic specialists (geneticists); Gum, teeth and mouth specialists (odontologists); Skin, hair, and nail specialists (dermatologists)
Expert care
Expert lists: National Foundation for Ectodermal Dysplasias
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with National Foundation for Ectodermal Dysplasias and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which dental care and dental specialist would help?
Would genetic counseling help our family?
What hair and scalp care do you recommend?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Dominant

GARD says changes in genes (variants) cause this condition and that it is autosomal dominant, so one changed copy of a gene can be enough. It doesn't name a specific gene.

GeneticSkin

Also known as: kersey syndrome; trichodental dysplasia

Patient organizations

Source: NIH GARD · Trichodental syndromeGARD ID 265 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Trichodental syndrome.

Explore the Trichodental syndrome blog

Explore research for Trichodental syndrome

Explore actively recruiting Trichodental syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Trichodental syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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