Comparison of Laboratory-Fabricated and 3D-Printed Rapid Maxillary Expansion Appliances

Brief Summary

The goal of this clinical trial is to determine whether two types of rapid maxillary expansion (RME) appliances produce different outcomes in children. RME is a treatment utilized to expand a narrow upper jaw. This study will include children aged 8 to 10 years who need upper jaw expansion during the mixed dentition period (when they have both temporary and permanent teeth). The main questions this study aims to answer are: * Do 3D-printed expansion appliances produce different skeletal and dental changes compared to conventionally fabricated appliances? * Do children feel more comfortable with one type of appliance? * Is there a difference in pain levels or oral hygiene between the two groups? Researchers aimed to compare a conventionally fabricated expansion appliance manufactured in a dental laboratory with a 3D-printed expansion appliance produced digitally to determine whether the method of production affects treatment outcomes and patient comfort. Participants: * Being treated with one of the two expansion appliances (assigned randomly) * Follow a standard activation protocol at home with parental guidance * Attend regular clinic visits during expansion and retention phases * Have dental photographs, X-rays, and digital scans taken before and after treatment * Complete an oral health-related quality of life questionnaire * Rate their pain using a pain scale * Have their oral hygiene measured