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Dental filling showdown: which technique keeps your fillings intact longer?

NCT ID NCT06183320

Knowledge-focused Sponsor: Universidade Federal Fluminense 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested two ways of placing a flowable bulk fill composite in class II cavities (fillings between back teeth). 38 patients received two fillings each, one with the flowable composite exposed at the edge and one not. Researchers will check for restoration loss, staining, and other issues over 5 years to see which technique works better.

What this could mean

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

Active substance
Flowable bulk fill composite (Opus Bulk Fill Flow APS) and incremental composite (Vittra APS)
What this could lead to
If successful, this could show dentists the best technique for using flowable bulk fill composites in back tooth fillings, potentially making fillings last longer and reducing staining or loss.
What could go wrong
This is a small, early-stage trial with only 38 patients, so results may not apply to everyone. The study compares techniques, not a new treatment, so no major breakthrough is expected.

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

38 people

The number who actually took part.

Started

Aug 2019

Finished

May 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

18 to 70 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Volunteers must have at only 20 teeth in function * Volunteers must have at only 2 carious proximo-occlusal lesions, or old restorations that need to be changed, in different teeth * These lesions must be more than 3 mm deep in the oclusal area and more than 5 mm deep in the proximal area, should have exposed dentin, and must have at only 50% of margins in enamel * Teeth should not present periodontal mobility Exclusion Criteria: * Volunteers with periodontal disease * Volunteers with gingival bleeding * Volunteers that have uses anti-inflammatory drugs in the last 30 days * Pregnant volunteers

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Conditions

The condition(s) this trial relates to.

dental caries dentin sensitivity

As listed by the trial registrant

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

Dental restoration failure of marginal integrity

Contacts and locations

Locations

  • Universidade Federal Fluminense - School of Dentistry

    Nova Friburgo, Rio de Janeiro, 28625-650, Brazil

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