Jawbone exists to hold teeth. When a tooth is lost, the bone that surrounded it loses its purpose and begins to resorb — noticeably within months, and substantially over years. Gum disease, injury and long-term denture wear cause the same erosion.

That creates a problem for implants, which need adequate bone volume and density to integrate properly. Bone grafting rebuilds the deficient area, restoring a foundation strong enough to support an implant that will last.

Grafting is a routine, well-established part of implant practice rather than an exotic add-on. Dr. Liu performs these procedures using 3D imaging for planning and Piezosurgery instrumentation, which cuts bone with ultrasonic vibration while leaving nerves, membranes and soft tissue unharmed.

  • Makes implant treatment possible where bone was insufficient
  • Socket preservation prevents loss rather than repairing it later
  • Restores natural ridge contour and facial support
  • Can rescue implants failing from peri-implantitis
  • Planned from 3D imaging, not guesswork
  • Piezosurgery cuts bone while sparing soft tissue and nerves
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Dental bone grafting procedure at Main Line Dental Implant Center, Berwyn PA

When bone grafting is needed

Grafting is indicated when there is not enough healthy bone to place an implant safely and predictably. Common situations include:

  • After an extraction — bone begins resorbing as soon as a tooth is removed
  • Long-standing missing teeth — a gap left for years typically loses significant width and height
  • Advanced gum disease — periodontitis destroys the bone around teeth directly
  • Trauma — injury to the jaw or the loss of a tooth to fracture
  • Long-term denture wear — a denture rests on the ridge without stimulating the bone beneath it
  • Around a failing implant — peri-implantitis creates bone defects that can often be grafted rather than losing the implant

Whether you need a graft is determined from a 3D Cone Beam CT scan, which measures bone in three dimensions. A conventional x-ray shows height but not width, and width is frequently the limiting factor.

Types of bone graft

Socket preservation

Grafting material is placed into the socket at the same appointment a tooth is extracted. This is the single most effective grafting procedure available, because preventing bone loss is far easier than rebuilding bone afterward. If you know a tooth is coming out and an implant may follow, ask about socket preservation before the extraction.

Ridge augmentation

Where a ridge has already narrowed or flattened, augmentation rebuilds its width and height. This is the procedure used when a tooth has been missing for years.

Guided bone regeneration

A barrier membrane is placed over the graft so that fast-growing soft tissue cannot invade the space before slower-growing bone fills it. The membrane holds the space open for the bone to claim.

Peri-implant grafting

Bone defects around an existing implant caused by peri-implantitis can often be cleaned and grafted, saving an implant that would otherwise be lost.

Sinus grafting

In the upper back jaw, gaining height means working with the sinus floor — a distinct procedure covered on our sinus augmentation page.

What the graft material is

Several material types are used, chosen to suit the defect:

  • Autograft — your own bone, harvested from another site
  • Allograft — processed, sterilised human donor bone from a tissue bank
  • Xenograft — processed bone mineral of animal origin, most commonly bovine
  • Synthetic — laboratory-produced biocompatible mineral

All of these act primarily as a scaffold. The graft is not the finished product — it holds space and gives your own bone cells a structure to grow into, and over several months your body replaces much of it with native bone. Dr. Liu will explain which material is being proposed for your case and why.

The Dental Bone Graft Process

  1. 3D planningA Cone Beam CT scan maps the existing bone in three dimensions and defines exactly how much volume needs to be rebuilt and where.
  2. Site preparationUnder local anesthesia the area is accessed and thoroughly cleaned. Any infected or granulation tissue is removed — grafting into an unclean site is what causes grafts to fail.
  3. Graft placementGraft material is packed into the defect and shaped to the contour needed. A barrier membrane is placed over it where guided regeneration is indicated.
  4. Closure and healingThe site is closed with sutures. Expect some swelling for several days. Written post-operative instructions are provided and we remain reachable throughout healing.
  5. MaturationThe graft integrates over roughly four to nine months depending on its size and type. A follow-up scan confirms the bone is ready before an implant is placed.

If an extraction is being planned, call us first. Grafting the socket at the time of extraction is markedly simpler than rebuilding a collapsed ridge a year later, and it keeps your implant options open.

Bone Grafting FAQs

The procedure is performed under local anesthesia, so it is not painful as it happens. Most patients describe the recovery as comparable to having a tooth extracted — some swelling and soreness for a few days, usually well controlled with over-the-counter medication.

Larger grafts involve more discomfort than small socket grafts. Sedation is available for patients who would prefer it.

Typically four to nine months, depending on the size and type of graft. Small socket grafts are at the shorter end; large ridge augmentations at the longer.

The graft is not rushed. Placing an implant into a graft that has not fully matured is a leading cause of implant failure, so a follow-up scan confirms readiness before proceeding.

Yes. Allograft material comes from accredited tissue banks and undergoes rigorous screening, processing and sterilisation that removes all cellular and organic components — what remains is the mineral scaffold. Xenograft material is processed to the same standard.

These materials have been used in dentistry and orthopaedics for decades with a well-documented safety record. If you would prefer a particular material type, tell us and we will discuss the options for your case.

Sometimes. Shorter or narrower implants, or angling implants to use available bone, can occasionally avoid grafting. Whether that is appropriate depends entirely on your anatomy and where the final tooth needs to sit.

What we will not do is place an implant into inadequate bone to save a step. An implant without a solid foundation fails, and the failure costs more than the graft would have.

You May Also Need

Dental Implants

A permanent replacement for missing teeth, placed by a Penn-trained periodontist who does implant surgery every week.

Learn more

Sinus Augmentation

Adding bone height in the upper back jaw so implants can be placed where the sinus is in the way.

Learn more

Regenerative Therapy

Rebuilding bone and attachment lost to gum disease, rather than simply halting the damage.

Learn more

Schedule Your Consultation

Dr. Liu will evaluate your situation and explain your options — including the ones you may not have been offered elsewhere.