In brief: PRF stands for platelet-rich fibrin, a healing material made from a small sample of your own blood spun in a centrifuge. It is placed in extraction sockets, bone grafts, sinus lifts, implant sites and gum surgery to support soft tissue and bone healing. It helps healing along but does not replace a well-planned graft or shorten implant bonding by much.
What PRF is (full form and meaning)
The full form of PRF is platelet-rich fibrin. It is a second-generation platelet concentrate: a gel-like clot made of fibrin (the protein mesh of a natural blood clot) packed with platelets, white blood cells (leukocytes) and the growth factors they release.
Because it comes from your own blood, PRF is autologous. There is no donor material, no anticoagulant and no chemical additive, so there is no risk of rejection or of catching an infection from someone else's blood.
How PRF is prepared
- Just before the procedure, a small amount of blood is drawn from your arm into a few sterile tubes, much like a routine blood test.
- The tubes go straight into a centrifuge, without anticoagulant, usually for about 3 to 15 minutes depending on the PRF type.
- The blood separates into layers. The middle layer, a fibrin clot rich in platelets and leukocytes, is collected.
- The clot is used as a plug, pressed flat into a membrane, chopped and mixed with bone graft, or, for liquid PRF, drawn into a syringe.
The blood draw and spinning usually happen while the surgical set-up is being done, so they add little to your time in the chair.
How PRF helps healing
When platelets activate, they release growth factors from their granules. The main ones in PRF are:
- PDGF (platelet-derived growth factor): draws in repair cells and makes bone-forming and gum-forming cells multiply.
- TGF-β: helps build collagen and keeps inflammation in check.
- VEGF (vascular endothelial growth factor): drives new blood vessel growth, which grafts need to survive.
- IGF and EGF: support bone cell and skin-lining (epithelial) cell growth.
The fibrin mesh matters too. It acts as a scaffold that cells can climb along, holds graft particles in place, and releases growth factors slowly as it breaks down, over roughly 7 to 14 days.
Types of PRF: L-PRF, A-PRF, i-PRF and T-PRF
All PRF types start with the same blood draw. The speed and time of spinning, and the tube material, change what ends up in the clot. Faster, longer spins give a firm membrane; slower, shorter spins give a softer gel or a liquid. The protocols below are commonly described in the literature, and exact settings vary with the centrifuge.
L-PRF (leukocyte- and platelet-rich fibrin)
Spun at about 2,700 rpm for 12 minutes. It forms a dense, strong membrane and is the most studied type. It is used for extraction sockets, socket preservation, sinus lifts, ridge augmentation, bone defects from gum disease, and as a cover over wounds.
A-PRF (advanced PRF)
Spun at a lower speed for a longer time. Lower force leaves more cells and growth factors in the clot, giving a softer membrane suited to gum recession coverage, gum grafts and front-tooth cases where gum quality matters.
i-PRF (injectable PRF)
Spun at about 700 rpm for 3 minutes and used before it clots, so it stays liquid. It can be injected into gum pockets or soft tissue around implants, or mixed with bone graft granules to make a mouldable "sticky bone".
T-PRF (titanium PRF)
Prepared in titanium tubes instead of glass or plastic. Titanium activates platelets differently, and some studies report a firmer, longer-lasting membrane. It is less widely used than L-PRF and A-PRF.
Where PRF is used in dentistry
- Extraction sockets: a PRF plug placed after removing a tooth helps the gum close over. Studies suggest less dry socket after wisdom tooth removal, and it is often combined with wisdom tooth surgery and socket preservation.
- Bone grafting and sinus lifts: PRF mixed with graft material binds the particles and supports new blood vessels. Some studies report earlier graft maturation, and the evidence is strongest here. See our article on PRF in sinus lifts.
- Implant sites: a PRF membrane around the implant neck can reduce early inflammation and help the gum seal around the implant, especially in soft bone or in patients with slower healing, such as controlled diabetes.
- Gum and periodontal surgery: PRF is combined with bone graft and a membrane in guided tissue regeneration for bone defects around teeth, and with connective tissue grafts for root coverage.
When PRF alone is not enough, it is combined with other materials: bovine bone graft as a scaffold, collagen membranes, or collagen and dermal matrices for gum volume. Our guide to guided tissue regeneration and bone grafting explains these.
What PRF does not do
PRF supports healing; it does not replace biology or good planning. Implants still need about 8 to 12 weeks or more to bond with bone, and sinus grafts usually still need 4 to 6 months or more before implants. PRF may shorten graft healing modestly in some cases.
The evidence is mixed for some uses. Benefits are clearest for soft tissue healing and graft handling, smaller for day-to-day swelling and discomfort. For a straightforward implant in dense, healthy bone, PRF may add little, so it is recommended when the procedure is likely to benefit.
PRF vs PRP
PRP (platelet-rich plasma) is the older, first-generation concentrate. It needs an anticoagulant during preparation, stays liquid, and releases most of its growth factors quickly. PRF needs no additives, forms a fibrin scaffold, and releases growth factors over one to two weeks. Simpler preparation and slower release are why PRF has largely replaced PRP in dental surgery.
Cost of PRF
PRF is listed on our fees page from ₹5,000 as a standalone procedure. When PRF is part of an implant, graft or gum surgery plan, it is included in the treatment quote unless it is listed separately.
FAQs
Is PRF safe?
Yes. It is made from your own blood in sterile tubes with no additives. The only discomfort is the needle for the blood draw.
Can I have PRF if I take blood thinners?
It depends on the medicine. Aspirin users can often still have PRF. Warfarin, newer anticoagulants and clotting disorders can affect clot quality, so your dentist reviews your medical history first. Never stop a blood thinner without your doctor's advice.
Will I heal faster with PRF?
Gum closure is often quicker and grafts may mature a little earlier. Swelling and soreness are usually only modestly reduced, and results vary between patients.
Planning an extraction, graft or implant and wondering about PRF? Book a Consult at our Bandra West or Kemps Corner clinic.
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