This randomized controlled clinical trial aims to compare the clinical efficacy, efficiency, and biomechanical differences between two methods for total maxillary dentition distalization: (1) the use of a Sliding Jig and (2) the use of Retraction Hooks, both anchored by Infrazygomatic Crest (IZC) miniscrews. The study will assess rates of distalization, anchorage loss, dentoalveolar tipping, patient comfort, and treatment-associated side effects.
The inclusion criteria will be the following: Adult patients with class II malocclusion (>14 years), present of all permanent teeth fully erupted, Bilateral Class II molar relationship skeletal malocclusion, moderate maxillary arch crowding (less than 5 mm) with maxillary protrusion, absence of craniofacial syndrome. and, except third molars
The subjects having the following conditions will be excluded from the study (1) Patients with transverse dental or skeletal discrepancies. (2) Patients indicated for extraction treatment (except for third molars) or unilateral distalisation treatment (3) Patients with Vertical growth pattern, (4) Patients having periodontal disease, (5) Patients with previous orthodontic treatment.