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Treatment of chronic oroantral fistula with platelet-rich fibrin clot and collagen membrane: a case report

Authors Al-Juboori MJ, Al-Attas MA, Magno Filho LC

Received 11 July 2018

Accepted for publication 11 September 2018

Published 8 November 2018 Volume 2018:10 Pages 245—249

DOI https://doi.org/10.2147/CCIDE.S179751

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 3

Editor who approved publication: Dr Christopher Okunseri


Mohammed Jasim Al-Juboori,1 Mohammed Ahmed Al-Attas,2 Luiz Carlos Magno Filho3

1Department of Periodontology, Al-Rafidain College, Baghdad, Iraq; 2Prosthodontic and Dental Implant Department, Riyadh Dental Center, King Saud Medical City, Riyadh, Saudi Arabia; 3Department of Oral Implantology, CA Implantes, São Paulo, Brazil

Abstract: An oroantral fistula is a complication of the maxillary posterior teeth that can occur after a tooth extraction that affects the maxillary sinus. Improper management may lead to a persistent fistula, which may become chronic. In this case report, platelet-rich fibrin (PRF) was used with a collagen membrane to close a chronic fistula in a single patient. A flap was raised, the oroantral fistula tract was eliminated, and the opening was closed with a resorbable membrane as a first layer and covered with a PRF clot as a second layer. The flap was closed, and the patient was followed up for suture removal and confirmation of complete soft tissue closure. The postsurgical sign and symptoms of the patient disappeared in the first week; complete tissue healing was detected within 2 weeks, and tissue hypertrophy was observed in the fourth week. The use of PRF may have advantages for soft-tissue healing and for accelerating soft tissue formation by subsequent hypertrophy.

Keywords: maxillary sinus, growth factor, soft tissue, flap

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