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Apically Positioned Flap vs Rolled Flap for Soft Tissue Management During Implant Second-Stage Surgery

12. Mai 2026 aktualisiert von: Ohio State University

Peri-Implant Soft Tissue Management During Second-Stage Surgery With Two Different Flap Techniques: A Randomized Controlled Study

Patients are being asked to consider joining a research study that looks at two different ways dentists uncover dental implants during a small gum surgery. To join this study, Patients must have two dental implants that are ready to be uncovered. Both uncovering methods used in this research are normal, safe procedures that dentists already use every day. The purpose of this study is to learn which method helps the gums heal better, stay thicker, and look more natural over time.

If patients decide to participate, the dentist will use one method on one implant and the other method on the second implant so we can compare how each implant heals. The study lasts about one year and includes the uncovering surgery plus scheduled follow-up visits. At these visits, the dentist will gently measure your gums, take pictures, take routine dental X-rays, and use a small camera scanner to check how the gum tissue changes. Patients will also be asked to rate any pain or swelling after surgery.

Patients may have soreness, swelling, or minor bleeding-these are the same risks patients would have during normal implant care. Patients may or may not personally benefit, but the extra monitoring may help us track the healing closely, and patients' participation can help dentists improve care for future patients.

Patients can receive regular implant treatment without joining the study. The goal of this summary is to help you think about the pros and cons and decide what feels right for patients.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

16

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  1. Patients between the ages of 18-80.
  2. Non-smokers or former smokers with at least a 5-year successful cessation history.
  3. Patients with normal systemic health (ASA-I) or well-controlled/stable systemic conditions (ASA-II), such as diabetes with HbA1c < 7.0%, no recent acute myocardial infarction or cerebrovascular accidents within 6 months, or any contraindication for periodontal or implant surgery.
  4. Patients who had, or plan to have, 2 non-adjacent implants of the same system placed under a two-stage implant protocol.
  5. The diameter discrepancy of the 2 target implants must be less than 1 mm.

Exclusion Criteria:

  1. Current smokers, or smokers who have quit <5 years prior to study entry.
  2. Pregnant or lactating women
  3. Patients with substance or alcohol abuse
  4. Patients with a history of antiresorptive therapy, head and neck radiotherapy, and chemotherapy for malignant tumors
  5. Other systemic conditions or medication affecting wound healing.
  6. Poor plaque control with plaque score > 20%
  7. Active/untreated odontogenic and periodontal infections
  8. Implants placed, or planned to be placed, with one-stage implant protocol.
  9. The diameter discrepancy of the 2 target implants is equal to or greater than 1 mm (≥ 1 mm).
  10. Implants showing signs of early peri-implant bone loss or infection.
  11. Severe loss of keratinized tissue (> 50%) at the implant site
  12. Non-English speaking individuals for studies involving informed consent.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Verdreifachen

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Apically Positioned Flap (APF)
During implant second-stage surgery, a crestal incision with vertical releases is used to elevate a flap that is repositioned apically and buccally to increase the width of keratinized tissue around the implant, followed by placement of a healing abutment and suturing.
Verfahren: Apically Positioned Flap (APF)
A flap design used during implant second-stage surgery in which a crestal incision with vertical releases is performed, and the flap is repositioned apically and buccally to increase the width of keratinized tissue around the implant.
Experimental: Rolled Flap Technique (RFT)
During implant second-stage surgery, a full-thickness flap is elevated, and a pedicled connective tissue portion is de-epithelialized and rolled toward the buccal aspect to increase peri-implant soft tissue thickness, followed by placement of a healing abutment and suturing.
Verfahren: Rolled Flap Technique (RFT)
A flap design used during implant second-stage surgery in which a pedicled connective tissue portion of the flap is de-epithelialized and rolled toward the buccal aspect to increase peri-implant soft tissue thickness.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Keratinized Tissue Width
Zeitfenster: Baseline (second-stage surgery) to 12 months after surgery
Keratinized tissue width will be measured clinically in millimeters at the mid-buccal aspect of the implant using a periodontal probe at prespecified follow-up visits.
Baseline (second-stage surgery) to 12 months after surgery
Change in Peri-Implant Mucosal Thickness
Zeitfenster: Baseline (second-stage surgery) to 12 months after surgery
Peri-implant mucosal thickness will be assessed by superimposing serial intraoral scan data to quantify changes in buccal soft tissue thickness at implant sites over time.
Baseline (second-stage surgery) to 12 months after surgery

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Pink Esthetic Score (PES)
Zeitfenster: 3, 6, and 12 months after second-stage surgery
Peri-implant soft tissue esthetics will be evaluated using the Pink Esthetic Score based on standardized clinical photographs, assessing papilla, tissue contour, color, and texture.
3, 6, and 12 months after second-stage surgery
Change in Peri-Implant Soft Tissue Volume
Zeitfenster: Baseline to 3, 6, and 12 months after second-stage surgery
Three-dimensional soft tissue volume changes will be quantified by superimposing serial intraoral scan data obtained at baseline and follow-up visits.
Baseline to 3, 6, and 12 months after second-stage surgery
Early Wound Healing Index
Zeitfenster: 1 and 2 weeks after second-stage surgery
Early wound healing will be assessed using a standardized healing index based on tissue color, bleeding, granulation tissue, and epithelialization.
1 and 2 weeks after second-stage surgery
Plaque Index (PI)
Zeitfenster: 1 week, 2 weeks, 1 month, 3 months, 6 months, and 12 months after second-stage surgery
Oral hygiene status will be assessed using the plaque index based on clinical examination at peri-implant sites.
1 week, 2 weeks, 1 month, 3 months, 6 months, and 12 months after second-stage surgery
Modified Sulcular Bleeding Index (mSBI)
Zeitfenster: 1 week, 2 weeks, 1 month, 3 months, 6 months, and 12 months after second-stage surgery
Peri-implant soft tissue inflammation will be assessed using the modified sulcular bleeding index during clinical examination.
1 week, 2 weeks, 1 month, 3 months, 6 months, and 12 months after second-stage surgery
Postoperative Pain Score
Zeitfenster: 1 and 2 weeks after second-stage surgery
Participant-reported pain will be measured using a visual analog scale (VAS, 0-100), where higher scores indicate greater pain intensity.
1 and 2 weeks after second-stage surgery
Postoperative Swelling Score
Zeitfenster: 1 and 2 weeks after second-stage surgery
Participant-reported swelling will be assessed using a visual analog scale (VAS, 0-100), where higher scores indicate greater perceived swelling.
1 and 2 weeks after second-stage surgery
Change in Peri-Implant Bone Level
Zeitfenster: Baseline to 12 months after second-stage surgery
Peri-implant marginal bone levels will be assessed using standardized periapical radiographs and compared between baseline and follow-up.
Baseline to 12 months after second-stage surgery

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ohio State University

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

30. Juni 2026

Primärer Abschluss (Geschätzt)

30. Juni 2028

Studienabschluss (Geschätzt)

30. Juni 2028

Studienanmeldedaten

Zuerst eingereicht

12. Mai 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

12. Mai 2026

Zuerst gepostet (Tatsächlich)

19. Mai 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

19. Mai 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

12. Mai 2026

Zuletzt verifiziert

1. Mai 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • STUDY20252723

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

UNENTSCHIEDEN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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Bedingungen

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