Platelet Rich Plasma
Platelet rich plasma (PRP) is exactly what the name suggests. The substance is a by-product of blood (plasma) that is rich in platelets. Until now, its use has been confined to the hospital setting. This was due mainly to the cost of separating the platelets from the blood (thousands) and the large amount of blood needed (one unit) to produce a suitable quantity of platelets. New technology permits the doctor to harvest and produce a sufficient quantity of platelets from only 55 cc of blood drawn from the patient while they are having outpatient surgery.
Why All The Excitement About PRP?
PRP permits the body to take advantage of the normal healing pathways at a greatly accelerated rate. During the healing process, the body rushes many cells and cell-types to the wound in order to initiate the healing process. One of those cell types is platelets. Platelets perform many functions, including formation of a blood clot and release of growth factors (GF) into the wound. These GF (platelet derived growth factors PGDF, transforming growth factor beta TGF, and insulin-like growth factor ILGF) function to assist the body in repairing itself by stimulating stem cells to regenerate new tissue. The more growth factors released into the wound, the more stem cells are stimulated to produce new host tissue. Thus, one can easily see that PRP may permit the body to heal faster and more efficiently.
Bone morphogenic protein (BMP) has been shown to induce the formation of new bone in research studies in animals and humans. This is of great significance to the surgeon who places dental implants. By adding PRP, and possibly BMP, to the planned implant site with bone substitute particles, the implant surgeon can now help your body grow more bone.
PRP Has Many Clinical Applications
Bone grafting for dental implants. This includes onlay and inlay grafts, sinus lift procedures, ridge augmentation procedures, and closure of bony cleft defects. Repair of bone defects created by removal of teeth or small cysts. Repair of fistulas between the sinus cavity and mouth.
PRP Also Has Many Advantages
Safety: PRP is a by-product of the patient’s own blood, therefore, disease transmission is not an issue.
Convenience: PRP can be generated in the doctor’s office while the patient is undergoing an outpatient surgical procedure, such as placement of dental implants.
Faster healing: The supersaturation of the wound with PRP, and thus growth factors, produces an increase of tissue synthesis and promotes tissue regeneration.
Cost effectiveness: Since PRP harvesting is done with only a small amount of blood in the doctor’s office, the patient need not incur the expense of the harvesting procedure in hospital or at a blood bank.
Ease of use: PRP is easy to handle and can improve the ease of application of bone substitute materials and bone grafting products by making them more gel-like.
Frequently Asked Questions About PRP
Is PRP safe? Yes. During the outpatient surgical procedure a small amount of your own blood is drawn out via the IV. This blood is then placed in the PRP centrifuge machine and spun down. In less than 15 minutes, the PRP is formed and ready to use.
Should PRP be used in all bone-grafting cases? Not always. In some cases, there is no need for PRP. However, application of PRP to the graft can improve healing to allow the wound to heal faster and more efficiently.
Will my insurance cover the costs? Unfortunately not. The cost of the PRP application is usually paid by the patient.
Can PRP be used alone to stimulate bone formation? No. PRP usually is mixed with either the patient’s own bone, a bone substitute material such as demineralized freeze-dried bone, or a synthetic bone product.
Are there any contraindications to PRP? Very few. Obviously, patients with bleeding disorders or hematologic diseases do not qualify for this in-office procedure. Check with your surgeon and/or primary care physician to determine if PRP is right for you.