Preparing the bone for implants
A bone graft for dental implants builds up jawbone that has shrunk, so an implant has enough bone around it. It is common after tooth loss, because the jaw starts to shrink once a tooth comes out. However, not everyone needs one, and your dentist decides only after an in-person examination and a CBCT scan.
Bone grafting at a glance
Typical ranges only. Your dentist confirms your plan, timeline and number of trips only after an in-person examination and CBCT imaging.
When a tooth comes out, the bone that held it starts to shrink. In one review, the ridge lost 29% to 63% of its width within six months. It also lost 11% to 22% of its height, mostly in the first few months.
A graft adds material where bone is missing. Then, over several months, new bone forms in the grafted area. In the upper back jaw, a sinus lift adds height under the sinus instead.

Your dentist fills the socket with graft material right after an extraction. In trials, this saved about 2 mm of ridge width compared with letting the socket heal alone.
Your surgeon places graft granules over thin bone and covers them with a membrane. Reviews found the best results when surgeons combined a membrane with a graft.
Your surgeon secures a small, solid piece of bone, often from your own jaw, to a thin ridge. It then heals for months before implants go in.
Your dentist decides after an examination and a 3D (CBCT) scan, so treat this as a guide.
Each technique suits a different kind of bone loss. So the choice depends on the size and shape of the gap.
A graft often adds a stage. For example, NHS information says grafting adds at least four months.
You send photos and an X-ray or CBCT scan. A dentist then prepares a provisional plan.
In person, your dentist checks your bone, gums and any infection. Next, they confirm whether you need a graft, and which type.
Small grafts from the mouth usually need only a local anaesthetic, so you go home the same day. If the bone allows, your surgeon may place the implant at the same visit.
The graft usually heals for 3 to 6 months, and large grafts can take longer. Meanwhile, keep your local dentist informed.
Once the bone has healed, your surgeon places the implant, which then needs its own healing time.
Finally, your dentist fits the crown or bridge. So a staged case may need three trips.
Swelling usually peaks after about two days and can last one to two weeks. Simple painkillers such as paracetamol or ibuprofen often help. Stitches usually come out after seven to ten days.
Follow your surgeon's advice on eating and cleaning. Above all, avoid smoking, because smokers have more graft failures.
Once implants carry teeth, see a dentist or hygienist every three to six months. At these visits, they check the gums and bone around each implant.
In reviews, implants in grafted bone often showed survival above 95%. Even so, grafting adds surgery, and bigger grafts bring more complications. For instance, one review of grafts that add height found complications in 12% of GBR cases and 24% of block graft cases.
Also, every graft shrinks a little while it heals. For this reason, your surgeon may build up slightly more bone than the implant needs.
These usually settle within one to two weeks. After a major graft from the hip, walking can hurt for 2 to 4 weeks.
An infection can cause the graft to fail. So contact your dentist if pain or swelling gets worse after a few days.
Sometimes the gum opens over the graft. In reviews, sites that stayed covered gained more bone.
Occasionally the graft doesn't take, and smokers face a higher risk. In that case, your surgeon may suggest another plan, such as a shorter implant.
Surgery in the lower jaw can affect a nerve and cause numbness or tingling in the lip, chin or tongue. This usually settles over time, but rarely it can be permanent.
When your surgeon takes bone from your own jaw, you have two areas to heal instead of one. So ask whether a substitute material could work for you instead.
Ask any clinic, including us, for clear written answers before you book.
No. It depends on your bone, where the implant goes and the shape of any defect.
Often 3 to 6 months, according to NHS information, and large grafts can take longer. However, a small graft can sometimes go in with the implant on the same day.
Small grafts usually need only a local anaesthetic, so you shouldn't feel sharp pain. Afterwards, swelling and soreness are common for a few days.
It can be your own bone, donor bone, bone from an animal source or a synthetic material. For socket preservation, a Cochrane review found no clear difference between materials.
Reviews found implant survival above 95% in grafted sites, similar to natural bone in block graft studies. Still, no one can promise how long an implant will last.
It can. A staged graft adds months of healing, so you may need an extra trip. However, a small graft placed with the implant may not.
Medical review required before publication · General information only; it does not replace an examination, diagnosis or personalised treatment plan.
Send a recent panoramic X-ray or CBCT scan and a few photos. A dentist will then review your bone and explain whether a graft looks likely. Your plan stays provisional until we examine you in person.