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Shorter implants could simplify sinus lifts for tooth replacement

NCT ID NCT07271134

Disease control Sponsor: Linhu Wang 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether shorter dental implants (6.3mm) work as well as standard ones (9mm) for people with low bone height in the upper jaw who need a sinus lift. Thirty-six adults will be randomly assigned to receive one of three implant types. Researchers will track complications like swelling and pain, and measure bone loss around the implant over three years.

What this could mean

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

Active substance
Astra Tech Implant EV short implants (6.3mm and 8mm) and conventional implants (9mm)
What this could lead to
If successful, short implants could offer a less invasive option for people with low bone height, potentially avoiding more complex sinus lift surgery.
What could go wrong
This is a small, early-stage study with only 36 participants, so results may not apply to everyone. There are standard risks like implant failure, swelling, and pain.

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

About 36 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Dec 2025

An estimate. Start dates often move.

Expected to finish

Jul 2028

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 80 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: * Patients aged over 18 years old with at least one area of the posterior dental arch having insufficient alveolar bone height (3-6 mm) * Patients are in good health and have no major systemic diseases such as diabetes or cardiovascular diseases, and no maxillary sinus lesions * They are willing to undergo implant restoration treatment and can complete at least 3-year follow-up. Exclusion Criteria: * horizontal bone deficiency alveolar ridges,bone defects caused by tumor resection * excessive tobacco use (more than 10 cigarettes per day) * severe liver and kidney diseases * history of radiotherapy and chemotherapy in the head and neck region * uncontrolled diabetes * active periodontal disease * oral mucosal diseases in the treatment area or poor oral hygiene, * PI \> 70%

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Conditions

The condition(s) this trial relates to.

anodontia tooth agenesis

As listed by the trial registrant

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

Missing teeth

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • No. 26, Shengli Street, Jiang'an District, Wuhan City, Hubei Province, China

    Wuhan, Hubei, 422202, China

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