Case Report
Volume 3 Issue 1 - 2015
The Use of Platelet-Rich Fibrin Membrane (PRF) As Barrier for Bone Graft in Immediate Loading of Dental Implants: A Case Report
Carlos Fernando Mourao1*, Jonathan Ribeiro1 and Natalia Belmock Mourao2
1Department of Oral and Maxillofacial Surgery, Faculdades São José, Rio de Janeiro, Brazil
2Department of Administration and Management of Pharmaceutical Care, Federal Fluminense University, Brazil
*Corresponding Author: Carlos Fernando Mourão, Faculdades São José - Av. Santa Cruz, 580 - Rio de Janeiro, Brazil.
Received: October 27, 2015; Published: November 07, 2015
Citation: Carlos Fernando Mourão., et al. “The Use of Platelet-Rich Fibrin Membrane (PRF) As Barrier for Bone Graft in Immediate Loading of Dental Implants: A Case Report”. EC Dental Science 3.1 (2015): 440-444.
Abstract
The aim of this case report is to present an alternative method to protect the biomaterials and dental implants after implant placement, using the platelet-rich fibrin (PRF) as a protective barrier. During the wound healing, the patient did not experience any adverse reaction, and we conclude that it is possible to use the PRF as a protective barrier of biomaterials for bone grafting in dental implant placement with immediate loading.
Keywords: Dental implants; Biomaterials; Fibrin
Introduction
The PRF (platelet - richfibrin) was developed in France by Joseph Choukroun, is a second generation of platelet concentrate derived from blood prepared by centrifugation and has been widely used to accelerate the healing of hard and soft tissues [1].
The blood is with drawn and immediately centrifuged carefully. The activation of the blood takes placed uring spinning, and allows the formation of a dense fibrin-platelet clot in the middle of the tube, between the base of red blood cells at the bottom and acellular plasma in the upper part of the tube. [2,3] The clot can be used directly or after a gentle compression to remove excess blood plasma as a resilient membrane.
This membrane has properties as a protective barrier of biomaterials, which can be exposed in the oral cavity without causing contamination of implanted material [4].
The aim of this case report is to present an alternative method to protect the biomaterials and dental implants after implant placement, using the platelet-rich fibrin (PRF) as a protective barrier.
Case Report
Male patient, 24 years of age, healthy, with no history of any systemic disease or past allergies, attended the office with the absence of the maxillary central incisor on the right (Figure 1). After performing the computed tomography scan of the region and clinical assessment of the region, he was adviced to oral rehabilitation using dental implant technique of immediate loading. Before the implant placement surgery the PRF was made according Chouckron et al. [5] with 18 ml of peripherial blood to make the membrane. To carry out the surgical procedure we used a 3.5 x 13 mm cone morse implant (Neodent®, Brazil). After implant site preparation, a good stability was obtained (50N according to the torque wrench), and the vestibular region gap was filled with hydroxy apatite bone graft (Ostin®, France). After this, we placed the prosthetic abutment of 3.3 mm diameter, 2.5 mm transmucosal and 6.0 mm in height (Figure 2).
Figure 1: Preoperative.
Figure 2: Implant installed and adapted abutment. It is observed exposure of cervical threads of the dental implant installed.
The PRF membrane was gently positioned to recover the biomaterial (Figure 3 and Figure 4) and a calcium hydroxide was used to cement the temporary crown and the mucosa was sutured with nylon 6-0 (Figure 5). The hygiene of surgical site was performed using a chlorhexidine gel 0.2% and analgesia was obtained with Tylenol® 500 mg every 6 hours for 3 days.
Figure 3: Hydroxy apatite positioned on the exposed surface of the implant and PRF membrane prior to implantation of the biomaterial.
Figure 4: PRF membrane positioned on the biomaterial.
Figure 5: Immediate postoperative.
The patient was evaluated after 3 days of post surgial and one time per week until complete 1 month without any complications. After 1 year of post surgical, the clinical peri-implant tissue presented with healthly aspect, good aesthetic (Figure 6 and 7) and the X-ray image showed a maintenance of the crestal bone level to 1 year follow up (Figure 8).
Figure 6: 14 days postoperative.
Figure 7: Postoperative 1 year. Even with the temporary crown.
Figure 8: X-ray postoperative 1 year.
Advantages/Reasons - why we used this membrane
  1. The membranes offer lower cost for the realization of the operative procedure;
  2. Simplicity in the handling and preparation of membranes;
  3. One might add the undisputed biocompatibility of the PRF to the fabric and lower possibility of complications such as infection and membrane exposure;
The PRF membranes are excellent alternatives to all alloplastic membranes, providing the necessary protection for bone formation.
Bibliography
  1. Dohan DM., et al. “Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part I: technological concepts and evolution”. Oral Surgery Oral Medicine Oral Pathology Oral Radiology Endodontics 101.3 (2006): e37-e44.
  2. Dohan DM., et al. “Do the Fibrin Architecture and Leukocyte Content Influence the Growth Factor Release of Platelet Concentrates? An Evidence-based Answer Comparing a Pure Platelet-Rich Plasma (P-PRP) Gel and a Leukocyte-and Platelet-Rich Fibrin (L-PRF)”. Current Pharmaceutical Biotechnology 13.7 (2012): 1145-1152.
  3. Dohan DM., et al. “Three-Dimensional Architecture and Cell Composition of a Choukroun’s Platelet-Rich Fibrin Clot and Membrane”. Current Pharmaceutical Biotechnology 81.4 (2010): 546-555.
  4. Mourão CF and Mourão NB. “Platelet-rich fibrin membrane in immediate loading of dental implants”. Dental Press Implantology 9 (2015): 104-109.
  5. Choukroun J., et al. “Une oportunité in paro-implantologie: le PRF”. Implantodontie 42 (2001): 55-62.
Copyright: © 2015 Carlos Fernando Mourão., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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