# Two Different Surgical Techniques for the Treatment of Multiple Gingival Recessions With Porcine Collagen Matrix

> **NCT03619096** · NA · WITHDRAWN · sponsor: **University of Sao Paulo**

## Conditions studied

- Gingival Recession
- Xenograft Model
- Gingival Recession, Generalized

## Interventions

- **PROCEDURE:** tunnel technique for Root coverage with Porcine collagen Matrix
- **PROCEDURE:** extended fla technique for Root coverage with Porcine collagen Matrix

## Key facts

- **NCT ID:** NCT03619096
- **Lead sponsor:** University of Sao Paulo
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2017-03-06
- **Primary completion:** 2018-06-06
- **Final completion:** 2019-07-06
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** The study received ethics approval but was never initiated. No participants were enrolled.
- **Last updated:** 2026-04-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03619096

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03619096, "Two Different Surgical Techniques for the Treatment of Multiple Gingival Recessions With Porcine Collagen Matrix". Retrieved via AI Analytics 2026-06-29 from https://api.ai-analytics.org/clinical/NCT03619096. Licensed CC0.

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