Ridge preservation after extraction

No. It is most worthwhile where an implant is planned at that site but is not being placed at the same visit, or where the shape of the ridge matters for appearance: for example under a bridge pontic at the front. Where no replacement is planned, or where the space will simply be left and monitored, grafting adds cost without a clear benefit. If it has been proposed, ask specifically what it is preserving the site for.

The ridge reduces in both width and height after an extraction, most rapidly in the early months, and the amount varies with the tooth, the condition of the socket walls and individual healing. Sockets where a bony wall was already damaged or lost tend to change more. What can be said reliably is that some loss happens in every case, that it is greatest early, and that preservation reduces, not prevents it.

It is a specific and relatively small form of bone grafting, done at the moment of extraction while the socket walls are still there to contain the material. That containment is what makes it more predictable than rebuilding a ridge that has already collapsed, which is a larger, staged procedure with a longer healing period. The distinction matters for both risk and cost, so it is worth being clear which one is being proposed.

Generally the additional discomfort is modest, since the graft is placed into a socket that is already open. Where a membrane or a soft tissue seal is used, or where the flap has to be adjusted to close over the site, there may be a little more swelling. The instructions afterwards are essentially those for any extraction, with particular emphasis on not disturbing the site because the graft as well as the clot is at stake.

Grafting into an actively infected socket carries more risk, so the site is cleaned thoroughly and in some cases the clinician will prefer to let infection settle and graft later, or to accept some resorption and graft at the time of implant placement instead. It is a clinical judgment instead of an absolute rule. If your tooth has an abscess, ask specifically how that affects the plan and the timing.

There is a healing interval while the graft is replaced by your own bone, and its length depends on the size of the site and the material used. It should be stated in your written plan instead of left open-ended, and it should conclude with imaging that confirms the volume achieved, not an assumption that enough time has passed. Proceeding without that confirmation is how sites get opened only to find insufficient bone.

Any of the standard graft categories can be used, the patient's own bone, processed human donor bone, processed animal-derived bone, or synthetic mineral substitutes, and for a straightforward socket, slowly resorbing materials that maintain volume well are common choices. The specific material matters less here than in a larger ridge augmentation, but it is still worth asking about, particularly if you have a religious, dietary or personal preference.

Often, yes, or it at least reduces how much grafting is needed later. That is the entire purpose of doing it at the time of extraction instead of after the ridge has already collapsed. It is not a guarantee that no further grafting will ever be needed, particularly for a larger implant case or where healing does not go entirely as planned, but it meaningfully improves the odds of a straightforward implant placement.

Often yes, but the site may need a larger grafting procedure at the time of implant placement to make up for the resorption that has already occurred, instead of the smaller, more predictable procedure that socket preservation would have been. This is exactly the trade-off that makes deciding on a replacement plan before extraction valuable. Once the window at extraction has passed, the options narrow, not disappear.

No: a membrane is used mainly where the socket walls are deficient or damaged, to keep soft tissue from growing into the space before bone can form there. Where the socket walls are intact, a simple graft fill without a membrane is often sufficient. Which approach is used should follow from what the socket actually looks like at the time of extraction instead of being a fixed default for every case.

Not usually: a removable temporary such as a flipper or an interim partial denture can typically still be worn over a grafted site once initial healing has begun, following the practice's specific guidance on timing and fit. What is delayed is the definitive replacement, an implant or a bridge sized to a stable ridge, which is exactly the healing interval the graft needs before it can be reliably built upon.

Appearance is less of a driver for back teeth, but the functional argument still applies. A collapsed ridge under a back-tooth implant or bridge pontic can still leave insufficient bone width for a well-positioned implant, or a hollow that traps food under a pontic. The decision should be based on the replacement plan for that site instead of assumed to matter only at the front of the mouth.