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Ballet Dancers' teeth get a better fill: new ceramic outlasts standard composite

NCT ID NCT07598305

Disease control Sponsor: I.M. Sechenov First Moscow State Medical 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two types of dental fillings for cavities and tooth wear at the gum line in 20 professional ballet dancers. One filling was a ceramic-like material (PICN) and the other was a self-hardening composite. Over 24 months, the ceramic fillings had zero failures, while the composite had a 20-30% failure rate. The ceramic also showed less dye leakage, suggesting a better seal. However, the study was small and only included dancers, so more research is needed.

What this could mean

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

Active substance
Polymer-infiltrated ceramic network (PICN) inlay and self-curing bioactive composite
What this could lead to
If successful, this could lead to more durable dental restorations for people with high bite forces, like athletes or those with bruxism.
What could go wrong
This is a small, early-stage study with only 20 participants, all ballet dancers, so results may not apply to the general population. Longer-term studies are needed.

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

20 people

The number who actually took part.

Started

Dec 2021

Finished

Dec 2024

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 50 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: * Current or retired professional ballet dancer with at least ten years of professional experience * Age 18 to 50 years * At least two non-adjacent cervical defects (Class V carious lesions or abfraction defects) located in different quadrants * Each defect depth ≥1.5 mm and width ≤4 mm * Teeth are vital, free of active periodontal disease (probing depth ≤3 mm), and without clinical or radiographic signs of pulpal pathology Exclusion Criteria: * Severe bruxism requiring occlusal splint therapy * Uncontrolled systemic diseases (e.g., diabetes mellitus, autoimmune disorders) * Pregnancy or lactation * Known allergic reactions to any component of the restorative materials (PICN or Stela composite) * Inability to attend scheduled follow-up visits (6, 12, 24 months)

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Conditions

The condition(s) this trial relates to.

dental caries root caries

As listed by the trial registrant

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

Ballet dancers Caries, cervical

Contacts and locations

Locations

  • Kazumova

    Moscow, 119048, Russia

More trials for these conditions

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