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Tiny plastic bumps could make your invisalign work better

NCT ID NCT06814262

Knowledge-focused Sponsor: Virginia Commonwealth University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested three different sizes of clear aligner attachments (small bumps on the teeth) to see which one helps move the upper lateral incisors outward most predictably. Twenty-eight people with mild crowding or spacing were treated with Invisalign. The goal was to find the attachment size that gives the most accurate tooth movement, potentially reducing the need for extra refinement trays.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
clear aligner attachments (gingivally beveled 1x1x3 mm, 1x1x4 mm, or 1x1x5 mm)
What this could lead to
If successful, this could help orthodontists choose the best attachment size for more predictable tooth movement with clear aligners.
What could go wrong
This is a small, completed study with only 28 participants, so results may not apply to all patients. It focuses on one specific tooth movement, not overall treatment success.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

28 people

The number who actually took part.

Started

Mar 2025

Finished

Jun 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

12 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients treated with either Comprehensive Invisalign or Invisalign Teen treatment * The maxillary arch has less than 6 mm of crowding or spacing * Maxillary lateral incisors have a minimum of 0.3 mm of extrusion prescribed in the Tooth Movement Table on the Invisalign ClinCheck for the first set of aligners * Maxillary lateral incisors within a normal range of bucco-lingual inclination * Patients 12 years of age or older and either the patient or legal guardian are able to give consent * Patients confirm good compliance throughout the study period Exclusion Criteria: * Patients do not complete all aligners in the first phase as prescribed * Poor compliance recorded for aligner wear * Restorations placed or oral surgery completed prior to final scan * Midcourse intervention to improve tracking such as a bootstrap * Maxillary lateral incisors not tracking and noted by minimum of 1 mm of aligner material incisally displaced when aligner fully seated * Treatment plans include surgery or extractions * Maxillary lateral incisors with pathology and restorations * Missing teeth other than third molars * Patients with anterior crossbite

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Orthodontic appliance complication

Contacts and locations

Locations

  • Virginia Commonwealth University

    Richmond, Virginia, 23298, United States

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