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Tooth root 'Shield' may preserve bone for dental implants, 6-Year study finds

NCT ID NCT07171866

Disease control Sponsor: Soaad Tolba Mohammed Tolba Badawi 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed trial tested the Socket Shield Technique (SST), where a thin piece of tooth root is left in place after extraction to support the bone and gum around a dental implant. 25 adults needing a single front tooth implant were randomly assigned to get the implant right away or after a 6-month delay. Over 6 years, researchers measured bone changes and appearance to see which timing works best.

What this could mean

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

Active substance
Socket Shield Technique (SST) - a surgical procedure where a thin piece of tooth root is left in place to support bone and gum after extraction
What this could lead to
If successful, this could confirm that the Socket Shield Technique provides long-lasting bone and gum support for dental implants, improving both appearance and function.
What could go wrong
This is a small, single-center trial with only 25 participants, so results may not apply to everyone. The technique requires skill and may not work in all cases.

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

25 people

The number who actually took part.

Started

Feb 2019

Finished

Jul 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

18 to 65 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: * Patients requiring single-tooth replacement in the anterior maxilla (esthetic zone) * Age between 18-65 years * Good systemic health * Demonstrated good oral hygiene * Presence of an intact buccal plate * Class I or II sagittal root position * Sufficient apical bone volume and quality for implant placement * Willingness and ability to comply with study protocol and follow-up schedule * Signed informed consent Exclusion Criteria: * Presence of acute infection at the extraction site (e.g., abscess) * Vertical root fracture or advanced periodontitis with buccal plate loss * Uncontrolled systemic disease (e.g., diabetes, osteoporosis) * Parafunctional habits (e.g., bruxism, clenching)

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As listed by the trial registrant

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

Alveolar ridge preservation Implant dentistry

Contacts and locations

Locations

  • Faculty of Dentistry, Mansoura University

    Al Mansurah, Dakahlia Governorate, 35511, Egypt

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