Quick answer

Ridge augmentation rebuilds jawbone width or height before an implant. Minor augmentation with particulate graft and a membrane usually costs $400–$1,200; a block graft runs $1,200–$3,000; a ridge split $800–$1,500. Healing takes three to six months before implant placement.

A dental implant needs bone in three dimensions: enough height, enough width, and enough bone on the facial and lingual sides to support the gum and keep the implant stable. When the ridge is narrow or uneven, ridge augmentation rebuilds it.

The procedure is sometimes called ridge modification or ridge reconstruction. It is different from socket preservation, which is done at the time of extraction to limit shrinkage. Ridge augmentation is reconstructive: it adds bone to a ridge that is already deficient.

Why a ridge becomes deficient

  • Extraction. Bone resorbs after a tooth is removed, especially in the first year.
  • Periodontal disease. Chronic infection destroys supporting bone.
  • Trauma. A fracture or avulsion can leave a defect.
  • Infection. An abscess or a failed implant can hollow out bone.
  • Anatomy. Some ridges are naturally thin or concave.
  • Dentures. Long-term removable prosthesis pressure accelerates resorption.

The three main techniques

Particulate graft with a membrane

The surgeon places particulate graft — allograft, xenograft or synthetic — over the defect and covers it with a barrier membrane. The membrane keeps soft tissue out of the bone space and gives the graft a protected environment.

This is the most common approach for moderate defects. It is less invasive than a block graft and can be done at the same time as implant placement if stability is adequate.

Block graft

A block of bone is fixed to the ridge with small screws. The block may be taken from the chin (symphysis), the back of the lower jaw (ramus), or another site such as the hip for a large reconstruction.

A block graft is used for severe defects, especially when height or width must be increased substantially. It requires a second surgical site if autogenous bone is used, and it has a longer healing time.

Ridge split

The ridge is split longitudinally and expanded, and graft material is placed into the gap. This works when the ridge is narrow but tall enough, and when the bone is flexible enough to expand without fracturing.

A ridge split avoids a second donor site and can be done in one stage with implant placement in selected cases. It is technically demanding and not suitable for every ridge.

The costs

Procedure Planning range
Minor ridge augmentation, particulate $400 – $1,200
Major ridge augmentation, block $1,200 – $3,000
Ridge split $800 – $1,500
Membrane $300 – $800
CT scan $150 – $400
Sedation $200 – $800
Implant (separate) $3,000 – $5,000+

These are 2026 cash-pay planning ranges. A block graft from the hip is a larger hospital-based procedure and may cost more.

What surgery involves

  1. Planning. A cone-beam CT shows the defect in three dimensions. The surgeon decides between particulate, block and split.
  2. Anaesthesia. Local anaesthesia is standard; sedation is optional.
  3. Incision. The gum is opened to expose the ridge.
  4. Preparation. The bone surface is decorticated to encourage bleeding and healing.
  5. Graft. Particulate is packed, a block is fixed with screws, or the ridge is split and expanded.
  6. Membrane. A barrier may be placed over the graft.
  7. Closure. The gum is sutured, sometimes with a tension-free closure that requires releasing incisions.
  8. Healing. The site is left undisturbed for three to six months.

Recovery

  • Days 1–3: swelling, soreness, possible bruising. Cold compresses and pain relief.
  • Week 1: sutures checked; soft diet; no brushing over the site.
  • Weeks 2–4: gum closes; gradual return to normal brushing around the site.
  • Months 3–6: graft consolidates; imaging check; implant placement.

A block graft from the chin can leave numbness or altered sensation around the lower lip, usually temporary but occasionally prolonged. Ask about nerve risk before surgery.

What affects success

  • Blood supply. A well-vascularised bed heals better.
  • Soft-tissue closure. Tension-free closure protects the graft.
  • Membrane stability. Movement or exposure reduces the result.
  • Smoking. Smoking impairs healing and increases failure.
  • Medical control. Diabetes, immunosuppression and some medications matter.
  • Surgeon experience. Ridge augmentation is technique-sensitive.

Alternatives

  • Short or narrow implant where the anatomy allows.
  • Angled implant to avoid a defect.
  • Bone graft at implant placement for a minor gap.
  • Bridge or denture if surgery is not wanted.
  • No replacement if the tooth is not functionally important.

Questions to ask

  1. What type of defect do I have, and which technique do you recommend?
  2. Will you use particulate, a block or a split?
  3. Is a membrane planned?
  4. Is the graft staged or simultaneous with the implant?
  5. What is the total cost, including the implant and crown?
  6. What is the revision policy if the graft fails?

The bottom line

Ridge augmentation rebuilds a narrow or deficient ridge with particulate graft, a block graft or a ridge split. It costs $400–$3,000 depending on the technique, heals over three to six months, and is usually followed by implant placement.

For the extraction-site version, read socket preservation. For the full implant sequence, see bone grafting for dental implants.

The bone graft hub explains how ridge augmentation fits with socket preservation and sinus lifts. For soft tissue coverage, see the gum graft cost guide and the periodontist directory.

Frequently asked questions

What is ridge augmentation?

It is a procedure that rebuilds the width or height of the alveolar ridge — the bone that holds teeth — so a dental implant can be placed in a stable, functional position. It may use particulate graft with a membrane, a block of bone, or a ridge split.

How much does ridge augmentation cost?

Minor augmentation typically costs $400–$1,200; a block graft $1,200–$3,000; a ridge split $800–$1,500. Material and membrane may be billed separately, and the implant is a separate cost.

Is ridge augmentation painful?

Most patients report soreness and swelling for several days. A block graft from the chin or ramus adds a second surgical site, which can be more uncomfortable than the ridge itself. Pain is usually manageable with over-the-counter medication.

How long does ridge augmentation take to heal?

Soft tissue heals in one to two weeks. The graft consolidates over three to six months, and a block graft may need four to six months before implant placement. The surgeon checks with imaging.

What is the difference between ridge augmentation and socket preservation?

Socket preservation places graft into a fresh extraction socket to limit shrinkage. Ridge augmentation rebuilds a ridge that is already narrow, short or uneven. Socket preservation is preventive; ridge augmentation is reconstructive.

Can a ridge augmentation fail?

Yes. The graft can resorb, become infected, expose a membrane or produce insufficient bone. Smoking, uncontrolled diabetes, poor blood supply and premature loading increase the risk. A revision may be possible.

Sources

Edited by Maya Ellison, Health Editor.Written by the Gum Graft Cost Guide Editorial Team. We are not dentists and this article is not dental advice. It summarises published clinical guidance and market pricing so you can ask better questions. A licensed periodontist has to examine your gums before recommending treatment. Read our editorial policy.