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When is the best time for a dental implant? new study compares costs and outcomes

NCT ID NCT05940662

Knowledge-focused Sponsor: University of Bern 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Updated 1 time

Summary

This study looks at three different timing options for placing a dental implant after losing a tooth in the upper front jaw: same day, after 1-4 months, or after more than 4 months. Researchers want to see which approach gives the best results for the cost. About 160 adults who need a single tooth replaced will take part. The study is currently on hold.

What this could mean

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

Active substance
dental implant placement protocol (immediate, early, or late)
What this could lead to
If successful, this study could help dentists choose the most cost-effective implant timing, saving patients money and reducing treatment failures.
What could go wrong
This is a non-randomized, single-center study that is currently suspended, so results may be limited and not apply to all patients. Cost-effectiveness depends on many factors beyond timing.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 160 people

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

Expected to start

Jan 2029

An estimate. Start dates often move.

Expected to finish

Jan 2040

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

20 years and older

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: * Age ≥ 20 years * Willingness and ability to sign informed consent (Appendix Informed Consent Form) and to participate in the study * Plaque index according to Silness and Loe of \< 35% * Presence of a single tooth (FDI positions 15 - 25) that has to be extracted * Sufficient vertical interocclusal space for the placement of an implant crown (FDI regions 13-23: 3 mm, FDI regions 15, 14, 24, 25: 6 mm) * Ridge height sufficient for the placement of a ≥ 8 mm-long implant * Sufficient ridge width for the placement of a 2.9 mm diameter implant (min. 5 mm) Exclusion Criteria: * Any physical or mental disorder that would interfere with the ability to perform adequate oral hygiene or the capability of providing written informed consent and compliance to the protocol * Any disorder that would interfere with wound healing or represent a contraindication for implant surgery such as, but not limited to, uncontrolled diabetes or conditions resulting in or requiring immunosuppression, radiation, chemotherapy, frequent use of antibiotics or antiresorptive medication such as bisphosphonates * Pregnancy (pregnancy tests will be applied; see chapter 6.5) * Intention to become pregnant between inclusion and implant loading * Heavy smoking habit with ≥ 10 cig/d * Allergy to titanium * Severe bruxism or clenching habits, present oro-facial pain * Insufficient ridge width/height for the study implant

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As listed by the trial registrant

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

Accuracy of dental implants Complications Cost-benefit analysis Cost-effectiveness Dimensional changes Esthetic zone Frequency of treatment protocol Implant survival and success Patient reported outcome measures Single tooth dental implant Single tooth lost

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Klinik für Oralchirurgie und Stomatologie, zmk Bern, Universität Bern

    Bern, 3010, Switzerland

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