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Braces vs. clear aligners: which puts your teeth at higher risk for decay?

NCT ID NCT07550179

Knowledge-focused Sponsor: University of Sharjah 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at 24 people getting braces or clear aligners to see which leads to more early tooth decay (white spots and hidden cavities). Over 6 months, researchers checked teeth with visual exams and a special scanner. The goal is to help patients and dentists choose the safer option for straightening teeth.

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

24 people

The number who actually took part.

Started

Jan 2024

Finished

Nov 2025

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

13 to 45 years

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: * Demographics: Patients aged 13-45 years, possessing fully erupted permanent dentition (excluding third molars). * Malocclusion Severity: Skeletal class I according to an ANB angle of 2-4 degrees (Steiner, 1953), moderate lower malalignment of 4-9 mm based on Little's Irregularity Index, and a class I incisor relationship (British Standards Institute, 1983). * Treatment Protocol: Comprehensive, dual-arch orthodontic treatment strictly on a non-extraction basis. * Handover form from their referring dentist confirming absence of caries requiring restorations and that all indicated restorative therapies have been completed, in addition to no active periodontal disease or pathologic probing depths. * No prior history of orthodontic treatment. * No full coverage restorations (crowns/veneers) on anterior teeth or premolars. Exclusion Criteria: * Inability to maintain adequate oral hygiene prior to treatment initiation. * Dental Anomalies and Missing Teeth: Congenitally missing teeth, presence of dental implants, or impacted teeth (excluding third molars). * Structural Enamel Defects: Presence of developmental enamel defects that mimic or obscure demineralization, including enamel hypoplasia, fluorosis, or amelogenesis imperfecta. * Fluoride Supplementation: Patients currently utilizing a prescribed, daily supplemental fluoride regimen beyond standard over-the-counter fluoridated toothpaste. * Adjunctive Appliances: Treatment plans requiring the use of plaque-retentive adjunct intraoral appliances (e.g., expanders, distalizers). * Contraindications to Therapy: Any existing biological contraindications to comprehensive orthodontic tooth movement (e.g., advanced root resorption).

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Conditions

The condition(s) this trial relates to.

dental caries prevention target

As listed by the trial registrant

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

Oral hygiene in orthodontic patients Plaque removal Proximal caries White spot lesions

Contacts and locations

Locations

  • University of Sharjah

    Sharjah city, United Arab Emirates

More trials for these conditions

Other studies related to the condition(s) this trial covers.