36 patients with unilateral or bilateral cross bite treated with hyrax expanders fabricated through three distinct workflows: fully conventional (physical impression + manual fabrication), hybrid (physical impression + CAD/CAM fabrication), and fully digital (intraoral scanning + CAD/CAM fabrication). To evaluate and compare the clinical fit, workflow efficiency, and patient/clinician satisfaction of palatal expanders fabricated using traditional, hybrid digital, and fully digital workflows.
• Aged between 8 and 13 years with transverse maxillary deficiency ( with unilateral or bilateral crossbite ,with or without anterior cross bite)
Indicated for tooth-borne maxillary expansion
Good oral hygiene and cooperative behavior
No prior orthodontic treatment
• Craniofacial anomalies or syndromes
Requirement for surgically assisted expansion
Poor oral hygiene or high caries index