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Dental filling showdown: bulk vs. Layer-by-Layer placement tested

NCT ID NCT07673952

Disease control Sponsor: Hacettepe 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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 29, 2026 · Last updated Jun 30, 2026 · Updated 1 time

Summary

This study tests two methods of placing a bulk-fill composite filling material in cavities on the chewing surfaces of back teeth. One method places the material all at once, while the other builds it up in thin layers. Researchers will check how well each method holds up over time, looking at retention, color match, and any problems like sensitivity or decay.

What this could mean

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

Active substance
bulk-fill composite resin (3M ESPE Filtek Bulk Fill)
What this could lead to
If successful, this could identify the best technique for placing bulk-fill composites, potentially improving dental restoration longevity and reducing chair time.
What could go wrong
This is a small, early-stage study with only 50 participants, so results may not apply to all patients. Risks include restoration failure, discoloration, or post-op sensitivity.

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

50 people

The number who actually took part.

Started

Jan 2019

Expected to finish

Jan 2029

An estimate. End dates often move.

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 60 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:Good general health, 18 years of age or older, Acceptable oral hygiene level, Present at least 20 teeth in the occlusion, Have at least two or four posterior teeth in need of restorative treatment. Have carious lesions, defective restorations replacement due to esthetic reasons). Exclusion Criteria:Poor oral hygiene, Having possible allergy to resin-based restorations, Advanced periodontal disease, Xerostomia, Pregnancy or breastfeeding, Severe systemic disease, Diagnosis of bruxism, Bleaching treatment or orthodontic treatment. \-

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Conditions

The condition(s) this trial relates to.

dental caries

As listed by the trial registrant

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

Dental caries Dental restoration failure

Contacts and locations

Locations

  • Hacettepe University Faculty of Dentistry

    Ankara, 06100, Turkey (Türkiye)

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