Living with Isolated congenital syngnathia
A very rare condition present from birth in which the upper and lower jaws are joined, limiting how far the mouth opens.
Understanding Isolated congenital syngnathia
The joining can be a thin layer of tissue or a full bony fusion, and it occurs without other malformations. Mouth opening may be slightly or severely limited. This can cause trouble with feeding, swallowing, or breathing, which may lead to poor weight gain, malnutrition, or a stiff jaw joint. It is seen in newborns.
Signs & symptoms
Symptoms vary from person to person. GARD's summary describes these features:
- Limited mouth opening
- Feeding difficulties
- Swallowing difficulties
- Breathing difficulties
- Poor weight gain (failure to thrive)
- Stiff jaw joint (ankylosis)
Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.
Diagnosis
- 1Talk with your doctor
Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.
- 2See a specialist
Specialists who may be involved include ear, nose, and throat specialists and genetic specialists.
- 3Ask which tests can help
Your care team will decide which exams and tests can confirm the diagnosis.
- 4Connect with expert centers
World Craniofacial Foundation may keep lists of experts for this condition.
Care & treatment
- Care team
- Ear, nose, and throat specialists (otolaryngologists); Genetic specialists (geneticists)
- Expert care
- Expert lists: World Craniofacial Foundation
- 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 World Craniofacial Foundation 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
Quick facts
GARD says changes in genes (also called variants) cause this condition. It is a developmental difference that happens early in pregnancy.
Also known as: isolated congenital maxillomandibular fusion
Patient organizations
- World Craniofacial FoundationCraniofacial anomalies · United States
- Children's Craniofacial AssociationCraniofacial anomalies · United States
- FACES: The National Craniofacial AssociationCraniofacial anomalies · United States
- myFaceCraniofacial anomalies · United States
You are more than your diagnosis
Perspectives from people navigating life with Isolated congenital syngnathia.
Explore research for Isolated congenital syngnathia
Explore actively recruiting Isolated congenital syngnathia studies with HealthSpark.
Find actively recruiting studies for Isolated congenital syngnathia 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
Powered by HealthSpark, our AI chat helper
I can help you find recruiting Isolated congenital syngnathia studies. Enter a ZIP code, address or city below and I'll look within 50 miles.
Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.
Get Signals for Isolated congenital syngnathia
Stay in the loop with community stories and updates from medical researchers.
Create a living journal that talks back
HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Isolated congenital syngnathia experiences more deeply and prepare for better conversations with your doctors and care team.
Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.