Overview
Trichodysplasia-amelogenesis imperfecta syndrome is a very rare inherited condition that affects two main parts of the body: the hair and the teeth. 'Trichodysplasia' refers to abnormal hair growth and structure, while 'amelogenesis imperfecta' means the tooth enamel (the hard outer coating of teeth) does not form properly. Together, these problems cause hair that is sparse, fragile, or unusually textured, along with teeth that are discolored, weak, sensitive, and prone to breaking or decay. The condition is present from birth or becomes noticeable in early childhood. People with this syndrome often have hair that grows slowly or is very thin and brittle. Their teeth may look yellow, brown, or white and can be much softer than normal teeth, making eating painful and dental care very important. The enamel defects can affect both baby teeth and permanent adult teeth. There is currently no cure for this syndrome. Treatment focuses on managing symptoms — protecting and restoring teeth through dental procedures, and caring for hair and scalp health. A team of specialists including a dentist, dermatologist, and clinical geneticist is usually needed. Early diagnosis and regular dental care can make a big difference in quality of life and help prevent serious tooth loss.
Key symptoms:
Sparse or thin hairBrittle or fragile hair that breaks easilyAbnormal hair texture or structureTooth enamel that is very thin or missingDiscolored teeth (yellow, brown, or chalky white)Teeth that are sensitive to hot, cold, or sweet foodsTeeth that chip, crack, or wear down easilyIncreased risk of tooth decay and cavitiesPain or discomfort when eatingSlow hair growth
Clinical phenotype terms (3)
Autosomal dominant
Passed on from just one parent; each child has about a 50% chance of inheriting it
Childhood
Begins in childhood, roughly ages 1 to 12
Treatments
No FDA-approved treatments are currently listed for Trichodysplasia-amelogenesis imperfecta syndrome.
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Specialists
View all specialists →No specialists are currently listed for Trichodysplasia-amelogenesis imperfecta syndrome.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to Trichodysplasia-amelogenesis imperfecta syndrome.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What genetic tests should we do to confirm the diagnosis and find the specific gene involved?,How often should my child see a dentist, and what type of dental specialist is best for this condition?,What can we do now to protect my child's permanent teeth before they come in?,Are there any clinical trials or research studies we could participate in?,What signs should prompt us to seek urgent dental or medical care?,How can we support our child's emotional wellbeing given the visible nature of this condition?,Should other family members be tested for this condition?
Common questions about Trichodysplasia-amelogenesis imperfecta syndrome
What is Trichodysplasia-amelogenesis imperfecta syndrome?
Trichodysplasia-amelogenesis imperfecta syndrome is a very rare inherited condition that affects two main parts of the body: the hair and the teeth. 'Trichodysplasia' refers to abnormal hair growth and structure, while 'amelogenesis imperfecta' means the tooth enamel (the hard outer coating of teeth) does not form properly. Together, these problems cause hair that is sparse, fragile, or unusually textured, along with teeth that are discolored, weak, sensitive, and prone to breaking or decay. The condition is present from birth or becomes noticeable in early childhood. People with this syndrom
How is Trichodysplasia-amelogenesis imperfecta syndrome inherited?
Trichodysplasia-amelogenesis imperfecta syndrome follows a autosomal dominant inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Trichodysplasia-amelogenesis imperfecta syndrome typically begin?
Typical onset of Trichodysplasia-amelogenesis imperfecta syndrome is childhood. Age of onset can vary across affected individuals.