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Dental study seeks best way to retract gums for digital impressions

NCT ID NCT07119281

Knowledge-focused Sponsor: Istanbul 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study tested four different methods of pushing back the gums (gingival retraction) to see which one gives the best digital dental scan. Fifty healthy adults with good oral hygiene took part. The goal was to find the method that balances clear scans, patient comfort, and minimal invasiveness.

What this could mean

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

What this could lead to
If successful, this study could help dentists choose the most effective and comfortable retraction method for digital dental impressions.
What could go wrong
This is a small, completed study with only 50 participants, so results may not apply to all patients or dental situations.

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

Feb 2024

Finished

May 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

25 to 40 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: 1. Age 25-40 years 2. Maxillary premolars with normal anatomical size, contour, and position 3. Systemically healthy individuals 4. Healthy gingiva and periodontium around abutments (GI = 0) 5. Good oral hygiene (PI = 0) 6. Pocket depth ≤ 3 mm 7. Thick gingival biotype Exclusion Criteria: 1. Smokers 2. Systemic conditions affecting periodontal status 3. Attachment loss, bleeding on probing, or plaque accumulation

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As listed by the trial registrant

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

Data accuracy, bleeding control

Contacts and locations

Locations

  • Medial University of South Carolina

    Charleston, South Carolina, 29425, United States

  • Medical University of South Carolina

    Charleston, South Carolina, 29425, United States

  • Medical University of South Carolina, College of Dental Medicine

    Charleston, South Carolina, 29425, United States