Is There a Specific Purpose of PRF in Maxillofacial Pathologies?
Though platelet-rich fibrin does hold multiple applications in modern-day dentistry, even in the fields of endodontics, periodontics, and oral surgery, there are many maxillofacial pathologies or situations where patients affected would need to be aesthetically and functionally rehabilitated. This calls for the necessity or the innate use of the PRF (platelet-rich fibrin) material that comprises several important growth factors apart from the healing potential of the platelets themselves. This is one of the preliminary reasons why PRF is used to accelerate not only the wound healing process after any maxillofacial surgery commonly, but it is also used preventively now, for example in the preventive management of conditions such as osteonecrosis of the jaw. Further, it holds immense value in modern-day oral and facial reconstructive surgery, just as its value in general medicine.
Platelets with cytokines and growth factors in their cellular structure are mainly utilized definitely for aiding in wound healing. The clinical features of platelets first gave the research clinicians the original idea of using concentrated platelets to promote or rather accelerate the healing process. For this reason, even today, platelet-derived biomaterials have developed rapidly in the medical field ever since the first centrifugation experiment succeeded over the last 20 years. They also overcome the several drawbacks of the PRPs, or platelet-rich plasmas that were considered for the same purposes enlisted above in dentistry and maxillofacial surgery. PRF, however, holds specific value in different clinical situations in maxillofacial surgery. Let's see how and where exactly.
What Are the Multiple Maxillofacial Situations That Warrant the Use of Platelet-Rich Fibrin?
In Sinus Lift Surgeries: In this maxillofacial situation, the use of PRF would warrant the use of PRF to promote wound healing and shorten the overall healing period. PRF has been utilized to great potential in sinus lift surgeries. These concentrates are usually mixed with the bone graft material prior to either dental implantation or reconstructive surgeries of the face to dentally rehabilitate the patient's jaw bone. In maxillofacial pathologies or high-grade cancers postoperatively or even in injuries or traumatic diagnosis of the upper jaw or the maxillary posterior regions, PRF shows high healing potential and a significantly lesser donor morbidity apart from the shortened or accelerated healing time. This is hence utilized mainly to promote the postoperative success of these surgical protocols either in maxillofacial surgeries, in these pathologies, or prior to dental implantation.
Research studies demonstrated that PRFs in sinus lifting procedures mixed with grafts versus their use without the mix with grafts indicated that there are no large differences in the final amount of bone tissue obtained. This shows that PRF can be an economical and easy surgical strategy that can be implemented by oral physicians or maxillofacial surgeons to promote postoperative surgical healing as well. However, research also shows that when PRF is manipulated with graft materials, the molding becomes easier in complicated sinus lift surgeries that require grafts.
The Preservation of the Alveolar Socket of the Jaw: In cystic enucleation or even in bone defects that are created by traumatic injuries, burns, or in conditions of extensive head and neck pathology affecting the jaw, and in benign or malignant tumors requiring jaw resection surgeries, the use of PRF is for healing these bone defects. When there is an aesthetic of functional deficiency in the jaw, then PRF can be utilized effectively for intrabony tooth sockets or defects in the alveolar regions.
In Bone Augmentation Protocols: These membranes can be useful potently in the successful closure of bone defects. They can also be used as barrier membranes, just like the guided bone regeneration material (GBR). However, in many maxillofacial situations, the use of PRF alone as a barrier membrane would still pose long-term efficacy questions. Hence, research is still being done regarding their long-term potential as barrier membranes.
Marginal Bone Loss Occurring Post-Dental Implantation: In this clinical situation, your implant dentist or maxillofacial surgeon would commonly use PRF to guide the bone loss happening in the jaw, which would affect the bone-implant contact osseointegration as well as the primary stability associated with dental implants. Research over the years showed that when PRF is used for managing the soft tissue issues that would possibly crop up post dental implantation, these can be indeed successful augmentation materials to completely, in fact, put a stop to the recording process or the bone resorption occurring as a result of implant infections. (Peri-implantitis or peri-implant mucositis). Research studies further demonstrate that the use of PRF in soft tissue defects around dental implants can help prevent implant failures in many individuals. Further, the use of PRFs in implant flap operations and in pre-surgical grafting procedures indicates higher success or much-improved results than the materials generally used in standard implant dentistry protocols. PRFs are now even employed for situations of immediate dental implantation, where dental implantation would be performed post-extraction. By the mix of PRF along with other cell concentrates or factors, accelerated wound healing can take place, which is the most common application within oral surgery practice, which is also used here post-surgically after dental implantation to prevent complications.
In the Management of Oroantral Fistulas: These oroantral communications would occur primarily due to the morphology of the local defects in the jaw region or even due to operator-induced or iatrogenic reasons in the posterior maxilla (upper jaw); oroantral fistula formation would be a common postoperative complication after extraction. Though uncommon in normal extractions, these have higher chances of formation after cystic elimination or excisions in infected sockets prior to implant surgery. It is in virtually closing these fistulas that the flap techniques or surgeries were introduced by maxillofacial surgeons. However, with the advent of PRF, to cover or close these defects effectively, researchers now deem that there is no better material than PRF for this purpose. Further, they do not cause patient or donor morbidity because of their minimal invasiveness.
Conclusion
The successful effects of PRFs, either pre or post-surgically, in these fields of dentistry and maxillofacial surgery are mainly attributed to the elements present within them. Its essential structure comprises a fibrin matrix and also varied cellular elements. In maxillofacial pathologies and modern reconstructive surgeries, PRF use is inevitable and often a necessity.
