A 9 month old comes in with a gaping mouth... After a neurology consult and still no diagnosis, what can it be?

During your child's dental checkup, the child's dentist might check for signs of temporomandibular joint syndrome (TMJ). Although TMJ is typically thought of as an adult disorder, children can exhibit early symptoms.

TMJ: Not Just for Adults- Temporomandibular Joint Syndrome

View my collection, "TMJ " from NCBI