Which expander hurts less? new study for kids with crossbite

This study compares two dental devices—the Leaf expander and the Hyrax expander—in 30 children aged 6 to 12 who have a crossbite (when upper teeth sit inside lower teeth). The main goal is to see which expander causes less pain during the first week. Researchers will also measure bone and tooth changes using 3D X-rays. The results will help dentists choose the most comfortable option for kids.