Atypical dentin dysplasia due to SMOC2 deficiency

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ORPHA:314721OMIM:125400K00.5
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Overview

Atypical dentin dysplasia due to SMOC2 deficiency is a very rare genetic condition that primarily affects the development of teeth. It is caused by changes (mutations) in the SMOC2 gene, which plays an important role in how teeth form during development. People with this condition have problems with dentin, which is the hard tissue that makes up most of the tooth structure beneath the enamel. The dentin does not form properly, leading to teeth that may appear abnormal, be discolored, or be more fragile and prone to damage. This condition can affect both baby (primary) teeth and adult (permanent) teeth. Teeth may have short roots, unusual shapes, or may be lost earlier than expected. Some individuals may also have other dental features such as widely spaced teeth, small teeth (microdontia), or missing teeth (oligodontia). The condition may also be associated with other features beyond the teeth, as SMOC2 plays roles in broader craniofacial development. There is currently no cure for this condition. Treatment focuses on managing dental problems through regular dental care, restorative dentistry (such as crowns or fillings), and potentially dental implants or dentures when teeth are lost. Early diagnosis and close follow-up with dental specialists can help preserve teeth and maintain oral function for as long as possible.

Also known as:

Key symptoms:

Abnormally shaped teethDiscolored or yellowish-brown teethTeeth that break or wear down easilyShort tooth rootsMissing teeth (some teeth never develop)Small teethWidely spaced teethEarly loss of teethThin or abnormal dentin layer on dental X-raysPossible mild facial differencesDental pain or sensitivity

Inheritance

Autosomal recessive

Passed on when both parents carry the same gene change; often skips generations

Age of Onset

Childhood

Begins in childhood, roughly ages 1 to 12

Orphanet ↗OMIM ↗NORD ↗

Treatments

No FDA-approved treatments are currently listed for Atypical dentin dysplasia due to SMOC2 deficiency.

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No actively recruiting trials found for Atypical dentin dysplasia due to SMOC2 deficiency at this time.

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No specialists are currently listed for Atypical dentin dysplasia due to SMOC2 deficiency.

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Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Travel Grants

No travel grants are currently matched to Atypical dentin dysplasia due to SMOC2 deficiency.

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Community

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Caregiver Resources

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Social Security Disability

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Questions for your doctor

Bring these to your next appointment

  • Q1.How severely are my child's teeth affected, and which teeth are most at risk?,What is the best dental care plan to preserve teeth as long as possible?,At what age should we consider dental implants or other permanent solutions?,Should other family members be tested for this genetic condition?,Are there any clinical trials or new treatments being studied for this condition?,How often should dental X-rays be taken to monitor tooth roots and dentin?,What dietary changes can help protect my child's teeth?

Common questions about Atypical dentin dysplasia due to SMOC2 deficiency

What is Atypical dentin dysplasia due to SMOC2 deficiency?

Atypical dentin dysplasia due to SMOC2 deficiency is a very rare genetic condition that primarily affects the development of teeth. It is caused by changes (mutations) in the SMOC2 gene, which plays an important role in how teeth form during development. People with this condition have problems with dentin, which is the hard tissue that makes up most of the tooth structure beneath the enamel. The dentin does not form properly, leading to teeth that may appear abnormal, be discolored, or be more fragile and prone to damage. This condition can affect both baby (primary) teeth and adult (permane

How is Atypical dentin dysplasia due to SMOC2 deficiency inherited?

Atypical dentin dysplasia due to SMOC2 deficiency follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does Atypical dentin dysplasia due to SMOC2 deficiency typically begin?

Typical onset of Atypical dentin dysplasia due to SMOC2 deficiency is childhood. Age of onset can vary across affected individuals.