A bone graft is required when there is insufficient bone volume in the jaw to support a dental implant. This is more common than many patients expect — bone loss occurs naturally after tooth extraction, and increases over time. Without adequate bone, an implant cannot be placed safely. The graft rebuilds or augments the jawbone before (or sometimes at the same time as) implant placement.
Why Bone Grafting Is Sometimes Needed
After a tooth is lost, the jawbone beneath the empty socket begins to resorb (shrink). In the first year after extraction, approximately 25% of bone width is lost; this continues more slowly over subsequent years. Patients who had teeth removed several years ago, or who have had significant gum disease, are most likely to need grafting.
Other situations that may require a bone graft before implant placement:
- Sinus proximity — in the upper jaw (maxilla), the sinuses can extend close to the implant site, requiring a sinus lift (a type of bone graft) to create adequate height
- Congenital bone deficiency — some patients have never had adequate bone in the implant site
- Trauma or previous infection — bone loss following injury or dental abscess
Types of Bone Graft Used in UK Dental Implants
- Autograft: Bone taken from the patient’s own body (typically the chin, behind the lower molars, or the hip). Most effective but requires an additional surgical site.
- Allograft: Processed bone from a human donor (from a tissue bank). Widely used and effective; eliminates the need for a second surgical site.
- Xenograft: Processed animal bone, most commonly bovine (cow). Very widely used in UK dental practices. Highly biocompatible. Note for patients with religious or dietary restrictions.
- Synthetic (alloplastic) graft: Manufactured materials such as hydroxyapatite or tricalcium phosphate. No animal or human donor material involved.
How Much Does a Bone Graft Cost in the UK?
- Minor bone graft (socket preservation at time of extraction): £200–£500
- Standard ridge augmentation: £500–£1,200
- Sinus lift (internal/closed technique): £600–£1,000
- Sinus lift (external/open technique, for significant height increase): £1,000–£2,500
- Major block bone graft: £1,500–£3,500
These are additional costs on top of the implant itself. Always ask explicitly when getting an implant quote whether a bone graft has been factored in — a CBCT scan is needed to assess bone volume, and quotes given without a scan cannot accurately reflect the likely final cost.
How Bone Grafting Affects the Timeline
A bone graft adds time to the overall implant treatment:
- Socket preservation graft (placed at extraction): 3–4 months healing before implant placement
- Ridge augmentation or minor sinus lift: 4–6 months healing
- Major sinus lift or block graft: 6–9 months healing
In straightforward cases, a minor graft can be performed at the same appointment as implant placement (‘simultaneous grafting’), which avoids adding extra time to the process.
Frequently Asked Questions
How do I know if I need a bone graft for a dental implant?
A CBCT (cone beam CT) 3D scan is required to accurately assess bone volume at the implant site. You cannot tell from a regular X-ray or clinical examination alone whether grafting is needed. Any reputable implant clinic will perform a CBCT scan before confirming your treatment plan.
How much does a bone graft cost for a dental implant in the UK?
Bone graft costs in the UK range from £200 for minor socket preservation to £2,500 for a major sinus lift. A standard ridge augmentation costs approximately £500–£1,200. These costs are in addition to the implant fixture, abutment and crown.
Does a bone graft hurt?
The procedure is performed under local anaesthetic, so you should not feel pain during the procedure. Post-operative discomfort is managed with standard over-the-counter painkillers in most cases, though more extensive grafts may require prescription pain relief for the first few days.
Can I get a bone graft in Poland or Hungary to reduce the cost?
Yes. Bone grafting is routinely performed at dental tourism clinics in Poland and Hungary. Costs are significantly lower — a sinus lift that costs £1,500 in the UK may cost £500–£700 in Warsaw or Budapest. Most dental tourism patients who need grafting have it performed during their first trip, alongside the implant placement.