Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Treatment of Peri-implantitis With or Without Simultaneous Soft Tissue Augmentation

19. juni 2026 opdateret af: Lucrezia Paternò Holtzman, George Eastman Dental Hospital, Italy

Surgical Reconstructive Treatment of Peri-Implantitis With or Without Simultaneous Soft Tissue Augmentation: a Multi-center Randomized Controlled Trial

The study will aim to compare two modalities in the reconstructive treatment of peri-implantitis defects. More specifically, the control group will be a reconstructive approach (xenograft bone graft granules and collagen membrane, BioOss and BioGide, Geistlich, Wolhusen). The test group will be the same, with the exception of an autologous sub-epithelial connective tissue palatal graft, sutured beneath the flap, which will be used in addition to grafting materials.

Outcomes will include CAL, PD, MR, defect resolution, PI, BoP, SUPP, surgical characteristics, and patient-reported outcome measures, including an aesthetic self-evaluation.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The study will aim to compare two modalities in the reconstructive treatment of peri-implantitis defects.

More specifically, the control group will be a "pure" reconstructive approach (xenograft bone graft granules and resorbable collagen membrane, BioOss and BioGide, Geistlich, Wolhusen). This is in accordance with gold standard practices of reconstructive therapy of peri-implant defects.

The test group will be treated with the same approach and materials, with the exception of an autologous sub-epithelial connective tissue palatal graft, sutured beneath the flap, which will be used in addition to the grafting materials. The graft will be harvested from the homolateral palate (molar region).

Outcomes will include clinical attachment level (CAL; primary outcome), probing depth (PD), mucosal recession (MR), defect resolution (a composite outcome defined as the simultaneous absence of PD > 5 mm, bleeding on probing [BOP] and/or suppuration [SUP], and bone level changes > 0.5 mm), plaque index (PI), BOP, suppuration on probing, suppuration on palpation, surgical duration, the Early Wound Healing Index (EHI), and patient-reported outcome measures (PROMs), including aesthetic self-evaluation.

PROMs will assess patients' perception of surgery, pain intensity, perceived swelling, perceived bleeding, and analgesic intake.

Clinical measurements will be recorded at baseline and at 6, 12, 18, and 24 months. EHI will be assessed at 1 and 2 weeks postoperatively. Radiographic bone levels at 12 and 24 months will be compared with those recorded on radiographs obtained at baseline. All PROMs variables, as well as aesthetic self-evaluation, will be collected using specially designed questionnaires completed by the patients. PROMs data will be recorded at 4, 8, and 12 hours after surgery on the day of surgery (day 0), and daily from postoperative day 2 to day 7. Aesthetic self-evaluation will be recorded at baseline and at 6, 12, and 24 months postoperatively.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

32

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Roma, Italien, 00100
        • George Eastman Dental Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • · Be able and willing to provide consent and sign the informed consent form.

    • Be able and willing to comply with study procedures and follow-up appointments required by the study protocol.
    • Age>18 years
    • Presence of at least one implant affected with peri-implantitis, defined as the following con-dition: at least one site presenting peri-implant probing depth (PPD) >6 mm and simultane-ous presence of profuse BoP/SUP and a radiographically documented change in bone level greater than initial bone remodeling. In the likely event that a baseline radiographic image is absent, the bone level will be compared to where it would likely have been at the time of implant insertion and a difference of >3 mm from that level will be considered.
    • Implants in function (i.e. loaded) for at least 1 year.
    • Screw- and cement-retained suprastructures for both fixed and removable prostheses.

Exclusion Criteria:

  • Compromised systemic health which contraindicates the study procedures.
  • Pregnant or nursing women.
  • Cigarette smoking>5 per day
  • Systemic conditions compromising healing (i.e. diabetes mellitus). Patients with diabe-tes mellitus types I or II will be asked to provide information regarding their most re-cent HbA1c values. Only patients with HbA1c<7% will be enrolled.
  • Patients taking medications known to interfere with gingival or bone metabolism.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Xenograft+collagen membrane
Reconstructive approach (Xenograft+collegen membrane)

For both arms (excluding the already included information): defect debridement, removal of debris using titanium curettes, titanium brushes on the implant surface, irrigation with saline, application of sterile cotton pellets with saline solution. Grafting with (experimental) xenograft and soft tissue, or xenograft alone (control). Suture.

Specific to control group (active comparator): the peri-implant defect will be filled with xenograft, and a collagen membrane will be fitted and trimmed to the defect area.

Specific to test/experimental group: same as above (for control). In addition a soft tissue graft will be harvested from the palate and sutured to the buccal flap. The entire flap will then be sutured to the lingual flap.

Eksperimentel: Xenograft+collagen membrane+autologous soft tissue graft
Reconstructive approach (Xenograft+collegen membrane) plus soft tissue graft (autologous, harvested as FGG)

For both arms (excluding the already included information): defect debridement, removal of debris using titanium curettes, titanium brushes on the implant surface, irrigation with saline, application of sterile cotton pellets with saline solution. Grafting with (experimental) xenograft and soft tissue, or xenograft alone (control). Suture.

Specific to control group (active comparator): the peri-implant defect will be filled with xenograft, and a collagen membrane will be fitted and trimmed to the defect area.

Specific to test/experimental group: same as above (for control). In addition a soft tissue graft will be harvested from the palate and sutured to the buccal flap. The entire flap will then be sutured to the lingual flap.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Clinical attachment level
Tidsramme: change from baseline to: 6, 12, 18, 24 months
linear distance (mm) from the implant platform to the bottom of the pocket
change from baseline to: 6, 12, 18, 24 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Probing depth
Tidsramme: 6, 12, 18, 24 months
linear distance (mm) from the gingival margin to the bottom of the pocket
6, 12, 18, 24 months
Disease resolution
Tidsramme: 6, 12, 18, 24 months
No PD greater than or equal to 5 mm and simultaneous absence of BOP/SUP and no more than 0.5 mm change between 2 weeks and 12 and 24 months on radiograph
6, 12, 18, 24 months
Mucosal recession
Tidsramme: 6, 12, 18, 24 months
linear distance (mm) from the implant platform to the gingival margin
6, 12, 18, 24 months
plaque index (minimum value 0, maximum 1)
Tidsramme: 6, 12, 18, 24 months
binary outcome: yes/ no detected running the probe into the peri-implant sulcus
6, 12, 18, 24 months
profuse bleeding
Tidsramme: 6, 12, 18, 24 months
abundant bleeding evoked upon probing immediately after
6, 12, 18, 24 months
BOP
Tidsramme: 6, 12, 18, 24 months
bleeding upon probing: bleeding evoked upon probing after 1 second
6, 12, 18, 24 months
suppuration
Tidsramme: 6, 12, 18, 24 months
Binary: yes or no, detected upon probing or digital palpation
6, 12, 18, 24 months
Gingival thickness
Tidsramme: 6, 12, 18, 24 months
Measured in a horizontal direction at 1 mm from the gingival margin
6, 12, 18, 24 months
Radiographic bone levels
Tidsramme: 2 weeks, 12 months, 24 months
radiographic bone level changes between the 2 week and 12 and 24 month follow-ups
2 weeks, 12 months, 24 months
PROMs - Patient perception of surgery
Tidsramme: 4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
Assessed using a 100-mm visual analog scale (VAS), where higher scores indicate a more positive perception of the surgical procedure.
4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
PROMs - Patient-reported pain intensity
Tidsramme: 4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
Assessed using a 100-mm visual analog scale (VAS), where higher scores indicate greater pain intensity.
4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
PROMs - Patient-reported swelling
Tidsramme: 4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
Assessed using a 100-mm visual analog scale (VAS), where higher scores indicate greater perceived swelling.
4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
PROMs - Patient-reported bleeding
Tidsramme: 4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
Assessed using a 100-mm visual analog scale (VAS), where higher scores indicate greater perceived bleeding.
4 hours, 8 hours, 12 hours, and Days 2-7 after surgery
PROMs - Analgesic consumption
Tidsramme: 12 hours after surgery and daily from day 2 through day 7 after surgery
Number of analgesic tablets consumed by the patient during the first postoperative week.
12 hours after surgery and daily from day 2 through day 7 after surgery
PROMs - aesthetic self-evaluation
Tidsramme: Baseline, 6 months, 12 months, and 24 months
Assessed using a 100-mm visual analog scale (VAS), where higher scores indicate greater satisfaction with the esthetic outcome.
Baseline, 6 months, 12 months, and 24 months
Early wound healing
Tidsramme: 1 week and 2 weeks after surgery
Wound healing scores ranging from 1 to 5 by the surgeon
1 week and 2 weeks after surgery
Surgical duration
Tidsramme: at the surgery
The interval between the initial incision and placement of the final suture, measured in minutes.
at the surgery

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Luca Cordaro, MD, PhD, G. Eastman Dental Hospital Rome, Italy

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

5. februar 2021

Primær færdiggørelse (Faktiske)

1. januar 2025

Studieafslutning (Faktiske)

1. januar 2025

Datoer for studieregistrering

Først indsendt

23. marts 2020

Først indsendt, der opfyldte QC-kriterier

25. marts 2020

Først opslået (Faktiske)

26. marts 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

24. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

19. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 18117 (Anden identifikator: City of Hope Medical Center)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .