Bone Grafting
Rebuilding jawbone volume to make a dental implant possible, at our Fremont, Cupertino, and Milpitas offices.
Bone Grafting Overview
The jawbone needs a tooth root to stay strong. Chewing forces transmitted through the root signal the surrounding bone to maintain its density, and when a tooth is lost that signal stops, so the bone in that area begins to shrink. Left long enough, this reshapes the face, producing the sunken look common with long-term tooth loss or an ill-fitting denture.
Bone grafting rebuilds that lost volume. Graft material placed into the deficient area gives your body a scaffold to grow new bone into, restoring what is needed for a dental implant, a better-fitting denture, or simply the structural health of the jaw. It is a routine surgical procedure with a long track record for patients across Fremont, Cupertino, Milpitas, San Jose, and the wider Silicon Valley.
When It's Needed
Most patients encounter bone grafting while planning a dental implant. An implant needs a minimum amount of bone to anchor securely, and when that volume is not there, grafting is the step that makes the implant possible. It is not only for implants, though. We also recommend it right after a tooth extraction to preserve the socket before it collapses, for patients whose ridge has resorbed significantly after years of wearing a denture, for bone loss caused by advanced gum disease, and to rebuild jaw structure after an injury.
Graft Types
Which approach fits depends on where the bone is missing and how much. Socket preservation is placed immediately after a tooth is removed, filling the empty socket before it collapses and adding only about 15 to 20 minutes to the extraction visit. Ridge augmentation rebuilds the width or height of the jaw where teeth have been missing for a while and bone has already started to shrink, the standard approach ahead of most implants. A sinus lift is used for upper back teeth, where the sinus floor sits close to the bone; the sinus membrane is gently raised and graft material placed beneath it, a technique the American Association of Oral and Maxillofacial Surgeons covers in detail. A block graft is for larger deficiencies that ridge augmentation cannot handle, typically a small piece of your own bone from elsewhere in the jaw, secured into the site; it takes longer to heal but handles more complex cases.
Graft Materials
Most patients are relieved to learn they usually do not need a second surgical site to harvest their own bone. An autograft uses bone taken from elsewhere in your own jaw and integrates the most reliably, reserved mainly for block grafts. An allograft uses sterilized human donor bone from a regulated tissue bank and is the most commonly used option, with predictable results and no second site. A xenograft uses processed animal bone, usually bovine, acting as a scaffold your own bone grows into, especially common for sinus lifts. A synthetic graft uses lab-made ceramic or calcium-based material with no human or animal source, gradually replaced by your own bone as it heals. The AAOMS has more detail on each.
Treatment Process
A typical bone graft takes about an hour under local anesthesia, with sedation available for anxious patients or larger cases; socket preservation done at the same time as an extraction adds only 15 to 20 minutes. The area is numbed, a small incision exposes the bone, and the graft material is shaped and packed into the deficient site, often covered with a protective membrane that keeps soft tissue from growing into the graft space while it heals. The gum is then closed with sutures, and the real work happens over the following months as your body's own bone-forming cells grow into the material and gradually replace it with real bone.
A typical healing timeline
- Week 1: initial soft tissue healing, with swelling and soreness peaking and then easing.
- Month 1: sutures out, swelling resolved, soft tissue healed over the site.
- Month 3: bone integration well underway as new bone forms through the graft.
- Month 6: most cases ready for implant placement, confirmed with follow-up imaging.
Aftercare
The first two weeks matter most. After that the graft is protected under healed gum tissue and your normal routine gradually returns. Smoking is the single biggest risk to a graft, and patients who smoke are encouraged to stop well before surgery.
The first two weeks
- Soft foods only, avoiding chewing on the graft side entirely.
- No smoking or vaping. Nicotine restricts blood flow and meaningfully raises the risk of failure.
- Gentle salt water rinses twice a day, tilting and holding rather than swishing.
- Mild swelling and bruising for a few days is normal; ice in the first 24 hours helps.
- Do not disturb the site with your tongue, fingers, or a toothbrush directly on the sutures.
Ongoing healing
- Resume gentle brushing near the graft at about two weeks, still avoiding the sutured area directly.
- Keep every healing check, where we monitor integration, sometimes with imaging.
- Avoid heavy chewing on that side for at least three months.
- Call us if pain worsens after day five, swelling returns after settling, you develop a fever, or graft material feels loose.
Bone grafting, answered
Does bone grafting hurt?
Not during the procedure. You are fully numbed, with sedation available. Afterward most patients describe mild to moderate soreness for a few days, similar to a tooth extraction, handled well with an over-the-counter pain reliever.
How long does the whole process take?
The surgery itself is about an hour, or 15 to 20 minutes when done alongside an extraction. Healing and integration take three to six months for most grafts before an implant can be placed; larger block grafts sometimes need longer.
Is the graft material safe?
Yes. Donor and animal-derived graft materials are regulated and processed to medical-grade standards, and synthetic materials contain no human or animal source. The AAOMS covers all of the common material types.
What if the graft fails?
Uncommon, but it happens, usually linked to smoking, poor home care, infection, or uncontrolled diabetes. Most failed grafts can be redone after a healing period, and we go over your individual risk factors at the consultation.
Does insurance cover bone grafting?
Coverage varies by plan and by why the graft is needed. We check your plan and give you a detailed estimate before scheduling.
Can I get a graft and an implant at the same time?
Sometimes, when the deficiency is small: the graft fills in around the implant as it heals. Larger deficiencies need the graft first, followed by a healing period before the implant goes in. Your imaging determines which fits your case.
Do I really need a graft, or can I just get the implant?
If the shortfall is small, a different implant size or angle can sometimes avoid grafting. But an implant placed into insufficient bone tends to fail, which costs more to fix than grafting properly the first time. We show you the imaging so you can see what we are working with before recommending anything.