Maxillary Arch Distalization Using Infrazygomatic Crest Miniscrews for Class II Malocclusion

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This prospective study evaluates en-masse distalization of the maxillary arch using bilateral infrazygomatic crest miniscrews connected to the upper archwire. After leveling and alignment, 6-mm power arms and elastomeric chains create distalizing forces, with records collected before treatment and after correction to assess skeletal, dental, and soft-tissue changes. Outcomes will include clinical photographs, radiographs, and digital dental models to quantify changes in the maxillary dentition and related structures. The approach aims to reduce reliance on patient compliance compared with conventional distalization methods. The study will help determine the dental and skeletal effects of this miniscrew-assisted technique in Class II malocclusion patients.

Why it matters

Who can join: the full rules

Inclusion Criteria:

1. Age between 15 and 30 years.
2. Non-extraction treatment plan, except for third molar extraction when indicated.
3. Class II molar relationship
4. Absence of any syndrome or systemic disease.
5. No history of previous orthodontic treatment.
6. Good oral hygiene.

Exclusion Criteria:

1. Patients indicated for extraction treatment.
2. Patients showing symptoms of temporomandibular disorders.
3. Patients with periodontal diseases.

Where it's running

• Mansoura University
  Al Mansurah, Dakahlia Governorate, Egypt Recruiting

Study contacts

• Principal investigator: Ahmed M Fouda — Faculty of Dentistry, Mansoura University
• Study coordinator: Hayder A Abdulrazaq, B.D.S.
• Email: hayderalmashkor@gmail.com
• Phone: +201550059646

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

• Custom-made versus ready-made Carriere Motion appliance for correcting Class II bite

  This study will test whether a custom-made Carriere Motion appliance works better than a ready-made version to correct Class II malocclusion in 12–15-year-olds with permanent teeth.

  Recruiting Mansoura University · Al Mansurah, Adakhlia · NCT07361172

• 3D-printed fixed twin block versus MARA to help correct an underdeveloped lower jaw in Class II malocclusion

  This research will test whether a CAD/CAM 3D-printed fixed twin block or a MARA appliance better improves dental alignment and jaw relationships in preadolescents with Class II due to a small lower jaw.

  Recruiting Mansoura University · Al Mansurah, Dakahlia Governorate · NCT07340242

• Distalizing upper first and second molars with a palate miniscrew device versus clear aligners

  This trial will test whether a miniscrew‑supported palate device (AMDA®) or clear aligners with Class II elastics moves upper first and second molars back more effectively in people with bilateral Class II malocclusion who need molar distalization.

  Recruiting Aristotle University Of Thessaloniki · Thessaloniki · NCT07040176

• Using Invisalign with special blocks for jaw advancement

  This study tests if using special blocks with Invisalign can help people with jaw alignment issues feel more comfortable and improve their dental health.

  Recruiting at 3 sites Align Technology, Inc. · Richmond, British Columbia and 2 other locations · NCT06651944

• Comparing clear aligners and fixed braces for treating mild Class II malocclusion in adults

  This study is testing whether clear aligners or traditional braces work better for adults with mild Class II malocclusion to improve their teeth and bite.

  Recruiting Hama University · Hama, Hama Governorate · NCT05684510

How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.