Air-polishing in the treatment of peri-implantitis - a randomized controlled trial

NCT ID NCT04847648

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Cancelled before anyone took part.

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First seen Sep 09, 2026 · Last updated Sep 09, 2026

Summary

The aim of the present study is to evaluate the potential benefit of the adjunctive use of an air-polishing device in the non-surgical treatment of peri-implantitis as compared to mechanical infection control alone. Following establishment of adequate patient-performed infection control, 80 patients diagnosed with moderate/severe peri-implantitis at ≥1 implant will be randomized to one of two groups. Non-surgical will be carried out by experienced operators in three clinical centers and the mechanical instrumentation (control group) will be supplemented by the use of air-polishing with erythritol powder (AirFlow Master, EMS, Nyon, Switzerland) in the test group. The primary outcome assessed is "pocket closure" (ie probing pocket depth ≤5 mm \& absence of profuse bleeding on probing) after 6 months. Secondary outcomes include changes of clinical signs of soft tissue inflammation, adverse events and patient-reported outcome measures. Outcomes of non-surgical therapy will be evaluated at 3 and 6 months. Sites with remaining pathology at 6 months will be subjected to surgical therapy. Patients are then provided with personalized maintenance care and followed up to a 5-year evaluation.

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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 80 people

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

Started

Oct 2021

Expected to finish

Dec 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 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: * Probing pocket depth of ≥6 mm * Bleeding and/or suppuration on probing at ≥3 aspects per implant * Documented radiographic bone loss of ≥2 mm. Exclusion Criteria: * Implants with bone loss ≥80% of implant length will not be considered. * No medical conditions prohibiting non-surgical/surgical treatment of peri-implantitis * Implant(s) in function ≥1 year

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Conditions

The condition(s) this trial relates to.

Peri-Implantitis

As listed by the trial registrant

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

How to take part

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  1. The places running it

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

  2. The official record

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Contacts and locations

Locations

  • Department of Periodontology, Institute of Odontology

    Gothenburg, 40530, Sweden

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