# Acute Oroantral Communication Closure: Resorbable Collagen Membrane vs. Buccal Advancement Flap Outcomes

> **NCT07476664** · NA · COMPLETED · sponsor: **Medical University of Silesia** · enrollment: 24 (actual)

## Conditions studied

- Oroantral Communication
- Acute Oroantral Communication
- Oroantral Fistula
- Post-extraction Maxillary Sinus Communication

## Interventions

- **PROCEDURE:** Resorbable collagen membrane OAC closure
- **PROCEDURE:** Buccal advancement flap OAC closure

## Key facts

- **NCT ID:** NCT07476664
- **Lead sponsor:** Medical University of Silesia
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-05-01
- **Primary completion:** 2025-12-01
- **Final completion:** 2025-12-01
- **Target enrollment:** 24 (ACTUAL)
- **Last updated:** 2026-03-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07476664

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07476664, "Acute Oroantral Communication Closure: Resorbable Collagen Membrane vs. Buccal Advancement Flap Outcomes". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT07476664. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*