Hyrax Vs. Invisalign Palatal Expander Clinical Study

This study is comparing a traditional fixed metal device called a Hyrax expander with the Invisalign Palatal Expander system for widening the upper jaw in children who need orthodontic palatal expansion — a common treatment when the upper jaw is too narrow. **You may be eligible if...** - Your child is between 6 and 11 years old - Your child's orthodontist has determined that upper jaw widening (palatal expansion) is needed - Your child has the appropriate teeth present (baby molars or permanent premolars, and first permanent molars) **You may NOT be eligible if...** - Your child has unusual growths on the roof of the mouth, a cleft palate, or an irregular palate shape - Your child's teeth are not suitable for the device, or your child is allergic to the device materials - Your child has active tooth decay, gum disease, or jaw joint problems (TMD) Talk to your doctor to see if this trial is right for you.