Comparing two methods for making clear orthodontic aligners

Difference Between Pressing and Vacuum Techniques in Fabrication of Orthodontic Aligners in Cases With Spacing: A Cross-sectional Study

Observational Cairo University · NCT06231875

This study is testing whether making clear orthodontic aligners using pressing or vacuum techniques works better for people with moderate spacing in their upper teeth.

Quick facts

Study typeObservational
Enrollment100 (estimated)
SexAll
SponsorCairo University Academic / other
Locations1 site (Cairo)
Trial IDNCT06231875 on ClinicalTrials.gov

What this trial studies

This observational study aims to compare the effectiveness of pressing versus vacuum techniques in the fabrication of orthodontic aligners for patients with moderate spacing in their maxillary arch. By evaluating the outcomes of both methods, the study seeks to determine which technique yields better results in aligner production. The study will involve participants with full permanent dentition and will exclude those with missing teeth or restorations. The findings could provide valuable insights into optimizing aligner fabrication processes.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals with a maxillary arch exhibiting moderate spacing and full permanent dentition.

Not a fit: Patients with missing teeth or any dental restorations will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved methods for creating orthodontic aligners, enhancing treatment outcomes for patients.

How similar studies have performed: While this study explores a specific comparison of techniques, similar studies in orthodontics have shown varying degrees of success in improving aligner fabrication methods.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Maxillary arch with moderate spacing.
* Full permenant dentition.

Exclusion Criteria:

* Missing teeth.
* Any restorations.

Where this trial is running

Cairo

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 Orthodontic Aligners
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.