"Sliding Jigs vs Retraction Hooks for Maxillary Dentition Distalization Using IZC Miniscrews"

Recruiting now · Not applicable

Conditions studied: Skeletal Class II Malocclusion

In brief

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.

Key facts

Study ID

NCT07307209

Run by

Sana'a University

People needed

40

Starts

2026-02-11

Expected to finish

2026-12-01

Last updated by the study team

2026-05-13

Who can join

Age: 14 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• 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

You may not qualify if…

• 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.

Where it is running

• Orthodontic department-faculty of dentistry- Sana'a univeristy — Sanaa, Yemen (enrolling)

Full record on ClinicalTrials.gov

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