Comparing two methods for bracket positioning in orthodontic treatment

Assessment of Treatment Efficacy Using Smile Arc Marginal Ridge Approach Versus MBT Chart Method for Bracket Positioning: A Randomized Clinical Trial

Not applicable Interventional Cairo University · NCT06652230

This study is testing if a new way of placing braces called SAMRA works better than the traditional method for people aged 11-30 with certain bite issues.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages11 Years to 30 Years
SexAll
SponsorCairo University Academic / other
Locations1 site (Cairo, Manial)
Trial IDNCT06652230 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of the Smile Arc Marginal Ridge Approach (SAMRA) compared to the traditional MBT chart method for bracket positioning in orthodontic patients. Participants aged 11-30 with Class I malocclusion will be randomly assigned to one of two groups, receiving either SAMRA or the MBT method during their orthodontic treatment. The study aims to determine if SAMRA leads to more accurate treatment outcomes and reduces the need for adjustments during the finishing phase. Follow-up assessments will be conducted to measure the results of each approach.

Who should consider this trial

Good fit: Ideal candidates are orthodontic patients aged 11-30 with mild to moderate crowding and Class I malocclusion.

Not a fit: Patients with systemic diseases, previous orthodontic treatments, or temporomandibular disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more efficient orthodontic treatments with fewer adjustments needed.

How similar studies have performed: While the MBT method is a well-established standard, the SAMRA approach is relatively novel and its comparative effectiveness is being evaluated for the first time in this context.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Orthodontic patients aged 11-30 years old.
* Mild or moderate crowding not requiring tooth extraction.
* Full permanent dentition including fully erupted 7s not necessarily 8s.
* Good oral hygiene.
* Skeletal and dentoalveolar class I malocclusion.

Exclusion Criteria:

* Systemic disease potentially affecting the study outcome.
* Cleft lip and palate/syndromic patients.
* Any signs or symptoms of temporomandibular disorders (TMD).
* Previous orthodontic treatment.
* Pregnant females.
* Chronic use of medications.

Where this trial is running

Cairo, Manial

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 Class I Malocclusion
Last reviewed 2026-06-09 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.