Comparing two types of appliances for correcting tooth position anomalies

A Comparison of the Effectiveness of Two Types of Myofunctional Appliances: A Randomized Clinical Trial

Not applicable Interventional University of Baghdad · NCT05371691

This study is testing which of two types of dental appliances, Myobrace or Twin-block, works better to fix tooth positioning problems in growing children with Class II malocclusion over nine months.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages8 Years to 14 Years
SexAll
SponsorUniversity of Baghdad Academic / other
Locations2 sites (Baghdad, Al-Rusafa and 1 other locations)
Trial IDNCT05371691 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to compare the effectiveness of two myofunctional appliances, Myobrace and Twin-block, in treating Class II malocclusion in growing children. Participants will be randomly assigned to one of the two groups, and their treatment outcomes will be evaluated using cephalometric X-rays taken before and after a 9-month treatment period. The study is multicenter and focuses on assessing the differences in tooth positioning achieved by each appliance. The goal is to determine which appliance is more effective in correcting tooth position anomalies.

Who should consider this trial

Good fit: Ideal candidates for this study are growing children diagnosed with Class II division 1 malocclusion who have not undergone previous orthodontic or orthopedic treatments.

Not a fit: Patients with systemic health issues, congenital malformations, facial deformities, or those with a finger sucking habit may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the most effective treatment options for children with Class II malocclusion, leading to improved dental health outcomes.

How similar studies have performed: Other studies have explored the effectiveness of myofunctional appliances, but this specific comparison between Myobrace and Twin-block is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Growing children who need myofunctional appliance.
2. Cl II div. 1 malocclusion.
3. No previous orthodontic or orthopaedic treatments.

Exclusion Criteria:

1. Patients with systemic involvement.
2. Congenital malformations such as cleft lip and palate.
3. Facial deformities.
4. Finger sucking habit will be excluded

Where this trial is running

Baghdad, Al-Rusafa and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Tooth Position AnomaliesMyofunctional applianceMyobrace.Twin-blockCl II div I malocclusion
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.