When a tooth is extracted, the bone that held it starts to shrink almost immediately. Ridge preservation, also called socket preservation or alveolar ridge preservation, is a small bone graft I place into the empty socket at the same visit as the extraction. Its job is to hold the shape of the jawbone while the socket heals, so that if you want a dental implant later, the bone is still there to support it.
Alveolar ridge preservation (ARP) is well studied. Systematic reviews and meta-analyses of randomized clinical trials consistently find that it limits horizontal and vertical bone loss compared with unassisted socket healing. It is one of the simplest things we can do to protect your options, and it is far easier than rebuilding bone after it has been lost. Preservation is the key: if you preserve the ridge, you usually don’t have to augment it later.
What Happens To The Bone After A Tooth Extraction?
The alveolar ridge is the part of the jawbone that surrounds and supports the teeth. It exists because of the teeth. Once a tooth root is gone, the bone around the socket no longer gets the stimulation it needs, and the body begins to resorb it.
Most of this bone resorption happens early. Studies of extraction sites show that the ridge can lose around half of its width within the first year, with the largest share of that change in the first three months. The thin buccal wall of bone, on the cheek side, is usually the first to go, which is why a socket left to heal on its own often ends up narrower and lower than the bone around it. These dimensional alterations affect both hard and soft tissues: ridge width, ridge height and the shape of the gum over the site. That collapse is what later makes implant placement difficult, and in the front of the mouth it can leave a visible dip in the gum line.
A tooth-supported bridge or a denture doesn’t stop this process either. Both replace the visible tooth, but there is still no root in the bone, so the ridge underneath keeps resorbing. When several teeth are lost, this bone atrophy can eventually change the shape of the face. Read about facial atrophy from missing teeth.
Ridge Preservation Vs. A Bone Graft
Patients often use the terms interchangeably, so it’s worth being clear. Ridge preservation is a bone graft, but a small, preventive one. It happens at the moment of extraction, before any meaningful bone loss has occurred.
When people talk about needing “a bone graft” for an implant, they usually mean a separate procedure to rebuild bone that has already been lost, sometimes years after the tooth came out. That is a larger operation with a longer recovery. Our page on dental implant bone grafts explains the different graft materials and when each is used.
Ridge Preservation Vs. Ridge Augmentation
This is the comparison that matters most for your future treatment.
- Ridge preservation keeps the bone you already have. It is done at the time of extraction, it is a minor procedure, and the socket heals in a few months.
- Ridge augmentation rebuilds bone after it has already been lost. It is much more involved, more expensive, and takes considerably longer to heal. Rebuilding width is usually predictable. Rebuilding height, called vertical ridge augmentation, is one of the most demanding procedures we do, and its results are less predictable.
If you place graft material inside the socket at the time of extraction, you are much less likely to need the ridge augmented in the future. That is the whole argument for ridge preservation.
There are exceptions. In some front-tooth cases, where the gum and bone need to be built up so the new tooth emerges from the gum and looks natural, we may still add augmentation for aesthetic reasons even after preserving the socket.
How The Ridge Preservation Procedure Works
Step 1: Gentle extraction
I remove the tooth as carefully as possible to protect the thin walls of the socket. The less bone damaged during the extraction, the better the socket heals.
Step 2: Cleaning the socket
Any infected tissue is removed so the graft sits in a clean site.
Step 3: Placing the graft
The empty socket is filled with bone graft material, which acts as a scaffold for new bone formation.
Step 4: Covering and closing
A protective membrane is placed over the graft as a barrier, and the gum is sutured to keep everything in place while it heals.
The procedure is done in the same appointment as your extraction, under local anesthesia, with sedation available if you prefer.
Over the following months, your body gradually replaces the graft material with your own bone, keeping the height and width of the ridge close to where they were before the extraction. That gives us adequate bone for implant placement, and for a natural-looking tooth replacement, without a separate bone augmentation surgery.
Healing Time After Socket Preservation
Discomfort afterward is usually similar to a normal extraction: some soreness and mild swelling for a few days. The graft site is typically ready for a dental implant in about three to four months, though the exact timing depends on the size of the socket, the condition of the bone and your overall health. We confirm the site has matured with imaging, using CBCT 3D imaging when we need to see the bone in three dimensions, before scheduling implant placement.
Who Should Consider Ridge Preservation?
I recommend discussing ridge preservation before any extraction where there is a chance you’ll want to replace the tooth with an implant, whether the tooth is being removed because of decay, a fracture, trauma or periodontal disease. It is especially worth doing when:
- The tooth is in the front of the mouth, where bone loss shows.
- The bone around the tooth is already thin, or the socket wall has been damaged.
- The tooth is being lost to gum disease, which has often already eaten into the bone. If you’re dealing with active gum disease, see our page on gum disease treatment.
- You aren’t ready to commit to an implant yet but want to keep the option open.
Not every extraction needs it. Wisdom teeth, for example, usually aren’t replaced, so preserving the socket offers little benefit. We’ll tell you honestly whether it’s worthwhile in your case.
Can The Implant Go In At The Time Of Extraction?
Sometimes, yes. When the bone and gum are healthy and there is no active infection, we can often remove the tooth and place the implant in the same visit, filling any gaps around it with graft material. In those cases a separate preservation step isn’t needed. When immediate placement isn’t the right call, ridge preservation keeps the site ready for later. Read about options for replacing a single tooth.
Cost And Insurance
Ridge preservation is a small addition to an extraction, and it costs far less than rebuilding the ridge later with augmentation. Many dental plans cover part of the extraction and sometimes the graft. We’ll review your coverage with you before treatment. See our accepted dental insurance plans.
Talk To Us Before Your Extraction
The best time to preserve the ridge is at the moment the tooth comes out, not afterward. If you have a tooth that needs to be extracted, call us at (347) 493-2439 or Book A Consultation at our offices in Manhattan, Long Island, Westchester or Nutley, New Jersey, and we’ll evaluate whether ridge preservation is right for you.
Frequently Asked Questions
Is Ridge Preservation Necessary After Every Extraction?
No. It’s worth considering whenever you might want an implant later, or when bone loss would affect how your smile looks. If the tooth won’t be replaced, as with most wisdom teeth, it usually isn’t needed.
Does A Socket Preservation Bone Graft Hurt?
The procedure is done under local anesthesia, so you shouldn’t feel pain during it. Afterward, most patients say it feels like a normal extraction, with some soreness and swelling for a few days.
How Long After Ridge Preservation Can I Get An Implant?
Usually about three to four months, once the graft has matured into bone. Larger or more damaged sockets can take longer.
What Is The Bone Graft Material Made Of?
Most socket grafts use a processed bone substitute, either from a human donor (allograft) or of bovine origin (xenograft), sometimes combined with your own bone. The material acts as a scaffold that your body gradually replaces with its own bone.
Does Ridge Preservation Always Work?
It works well in most cases, but like any surgical intervention the outcome varies. The biggest factors are the thickness of the buccal bone (very thin walls, under about 1 mm, tend to shrink more), smoking, and health conditions or medications that slow bone healing, such as uncontrolled diabetes or some osteoporosis medications. Adverse events are uncommon. The most frequent is losing a few graft particles in the first weeks, which usually doesn’t affect the final result.
What Happens If I Skip Ridge Preservation?
The socket will still heal, but the ridge is likely to lose height and width over the following months. If you later want an implant, you may need ridge augmentation first, which is a bigger procedure with a longer healing time.
Can Ridge Preservation Be Done Years After An Extraction?
No. Ridge preservation only works at the time of extraction. Once the bone has already resorbed, rebuilding it is called ridge augmentation.
