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Which dental glue holds up best? 3D scans track wear on clear aligner attachments

NCT ID NCT07812220

Knowledge-focused Sponsor: Marmara 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 10, 2026 · Last updated Sep 11, 2026 · Updated 1 time

Summary

Researchers at Marmara University are comparing how much two flowable dental composites wear down when used to bond attachments for clear aligner treatment. Thirty-five people receiving Invisalign will have their mouth split into four sections, with each section bonded using one of the two materials. Intraoral scans taken every two months for six months will be turned into 3D models, and software will measure the volume lost from each attachment. The goal is to see whether one composite holds up better than the other during treatment.

What this could mean

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

Active substance
Two flowable dental composites used to bond clear aligner attachments: GC Aligner Connect and VOCO AlignerFlow LC
What this could lead to
If one composite wears less, orthodontists could choose a more durable material for clear aligner attachments, which may mean fewer repairs or re-bonding visits during treatment.
What could go wrong
This is a small, single-clinic study of 35 people with mild to moderate crowding, so the results may not apply to other patients or other composites. Wear is measured over six months, and longer-term durability remains unknown.

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

35 people

The number who actually took part.

Started

Dec 2024

Finished

Jul 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

14 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: * Receiving Invisalign treatment at the Clinic of the Department of Orthodontics, Faculty of Dentistry, Marmara University * Mild to moderate crowding * Exhibiting good oral hygiene * No active dental caries * Voluntarily agreeing to participate in the study and signing the written informed consent form * Having no history of any syndrome, systemic disease, or allergy Exclusion Criteria: * Being pregnant or lactating * Presenting with advanced periodontal disease of a severity that could affect orthodontic treatment * Having prosthetic restorations within the oral cavity * Presenting with white spot lesions prior to orthodontic treatment

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As listed by the trial registrant

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

Clear aligner therapy Composite resins

Contacts and locations

Locations

  • Marmara University Faculty of Dentistry Department of Orthodontics

    Istanbul, 34854, Turkey (Türkiye)

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