Should I extract the tooth and then refer for grafting?

Refer before the extraction whenever an implant is on the table. The socket is easiest to preserve at the moment the tooth leaves it, and a flapless, atraumatic extraction with the buccal plate intact is worth more than any graft placed into a healed defect later. If the tooth has already been removed, the site can still be reconstructed, it simply takes longer.

How long does the site need before an implant can be placed?

A preserved socket grafted with particulate material is usually re-entered at four to six months, sooner in a small socket with intact walls, later where a wall had to be rebuilt. Dr. Verrett confirms with a cone-beam scan rather than by the calendar alone, and reports the timing to the referring office in writing after the visit.

Do you need a new cone-beam scan if our office already took one?

No. The practice accepts DICOM data from the referring office rather than repeating a scan, as long as the field of view covers the site and the study is current. A scan can be taken in the office when one is needed.

Can the patient wear their existing partial or flipper over the graft?

Usually, with relief. A prosthesis that loads the graft directly is the most common cause of an otherwise good ridge preservation collapsing. Send the appliance with the patient so it can be adjusted at the surgical visit.

Who restores the implant?

The referring office does. The practice places, grafts, uncovers, and confirms readiness, and the patient returns to the referring dentist for the abutment and crown and for alternating maintenance. No general dentistry is done here.

Extract and Graft or Place? How the Socket Decides

An extraction is a fork in the road, and most of the decision is made in the first sixty seconds after the tooth is out, with a probe and a good light. The question is not whether an implant is possible, but what the site will tolerate today and what the ridge will look like in six months if nothing is done about it.

What Happens to a Socket Left Alone

Post-extraction remodeling is not a complication; it is the default. The bundle bone lining the socket depended on the periodontal ligament for its blood supply and resorbs with it. The systematic review of post-extraction dimensional change by Tan and colleagues puts the horizontal reduction at 3.79 mm and the mid-buccal vertical loss at 1.24 mm by six months, with the rapid phase in the first three to six months and most of the loss on the buccal, which is the contour the final crown depends on. Ridge preservation does not abolish that remodeling: the meta-analysis of ridge preservation by Avila-Ortiz and colleagues describes it as attenuating the dimensional reduction rather than preventing it. It reduces it, and it converts an unpredictable site into a predictable one.

Socket Wall Integrity and the Buccal Plate

The buccal plate is the whole argument. In the anterior maxilla it is thin: the cone-beam study of 250 patients by Januário and colleagues found the facial bone wall was 1 mm or less at most anterior maxillary sites and 0.5 mm or less at close to half of them. A thin plate is largely bundle bone, so it will remodel whether or not an implant is sitting behind it. A thick plate, generally 1 mm or more, has cortical bone with its own periosteal supply and behaves very differently, and the same ridge preservation meta-analysis found sites with a buccal wall over 1 mm preserved noticeably better than thinner ones.

So the first thing to establish, after an atraumatic and preferably flapless extraction with periotomes or a physics-type instrument, is the state of the four walls. A blunt probe walked around the crest, a periapical, and where an implant is planned a cone-beam scan, will tell whether the buccal wall is present, fenestrated, or gone. A socket that dehisces under the probe at 2 or 3 mm is a different site from one that holds.

A Working Classification of Extraction Sockets

The commonly used classification, after Elian and colleagues, sorts sockets by what remains of the buccal plate and the soft tissue over it:

Type 1. Facial soft tissue and buccal plate both intact and at normal levels relative to the CEJ of the tooth being removed.
Type 2. Soft tissue present, buccal plate partially or entirely missing, usually as a mid-facial dehiscence under intact mucosa. This is the one that gets missed, because it looks fine from the outside.
Type 3. Both the soft tissue and the buccal plate are deficient, typically after a long-standing fistula, a vertical fracture, or a failed endodontic case.

A Type 1 socket supports the widest range of options. A Type 2 socket is where careful judgment earns its keep. A Type 3 socket is a reconstruction, not a preservation, and the patient should be told so before the tooth comes out rather than after.

When Immediate Placement Is Defensible

Immediate placement, Type 1 placement in the ITI consensus statements on implants in postextraction sites, is a good decision when the site supplies all of the following. That consensus makes two of these explicit: primary stability in the appropriate restorative position is a requirement, and an acute infection is an absolute contraindication.

An intact buccal plate of reasonable thickness, confirmed on the cone-beam scan and again with the probe after the tooth is out.
Enough apical or palatal bone, generally 3 to 5 mm beyond the socket apex, to engage for primary stability with the fixture in a prosthetically driven position, which in the maxillary anterior means palatal to the socket axis and never against the buccal plate.
Primary stability sufficient for the plan. Placement alone tolerates less; immediate provisionalization should not be attempted without solid insertion torque, generally in the range of 35 Ncm. The systematic review of immediately placed and restored anterior maxillary implants by Weigl and Strangio found that most published protocols required a minimum insertion torque of 32 Ncm or more, and reported a 98.25 percent survival rate under those strict selection criteria.
No acute suppurative infection. A chronic periapical lesion that can be thoroughly curetted is not a contraindication; active pus and swelling is one.
A thick gingival phenotype, or a site outside the esthetic zone where phenotype matters less.
A patient who is not a heavy smoker, whose diabetes is controlled, and who is not on an antiresorptive that changes the conversation.

Even when all of that is true, the horizontal gap between the fixture and the buccal plate is grafted. A jumping distance over roughly 2 mm is filled with a slowly resorbing particulate to support the contour while the site heals; the ITI systematic review of immediate placement and loading in the maxillary esthetic zone by Hamilton and colleagues identified facial gap width over 2 mm as one of the few site variables that measurably moved survival.

When It Is Not

The site is preserved and staged when the buccal plate is missing or dehisced, when primary stability cannot be achieved without pushing the fixture out of the restorative position, when there is active purulent infection, when a large periapical lesion has destroyed the apical housing, when the patient is a heavy smoker or has poorly controlled systemic disease, and in most thin-phenotype esthetic cases. Compromising implant position to place on the day of extraction buys nothing, and the restoring dentist inherits the result.

Ridge Preservation Technique and Graft Material Choice

The technique is unglamorous and depends on details: atraumatic extraction, complete degranulation, and a decision about primary closure. A particulate graft is placed to the crest and contained, most often with a resorbable collagen membrane or a collagen plug tucked under the flap margins, and the site is closed or left to granulate over the membrane depending on the flap available. That is the combination Avila-Ortiz and colleagues found most favorable for horizontal preservation: particulate xenogeneic or allogeneic material covered by an absorbable collagen membrane or a rapidly absorbable collagen sponge. Where a buccal wall is missing, containment has to be built first, which is a different procedure with a different healing time.

Material choice at a general level: mineralized allograft turns over on a timeline that suits most posterior implant sites; a bovine xenograft resorbs slowly and holds volume, which is why it is preferred where contour itself is the goal, including buccal gap grafting in the esthetic zone; alloplasts have a place where a patient objects to donor material. Most cases here use one of the first two, sometimes in combination, and the choice is reported on the surgical note so the restoring office knows what is in the site. More is on the bone grafting page.

Healing Timelines Before Re-Entry

Timing follows the ITI consensus scheme, and it is worth using the same vocabulary on referral slips. The ITI consensus defines the four types by the healing that has occurred rather than by the calendar; the week ranges below are the conventional ones, as set out in the review of implant placement timing by Thoma, Mancini and Jung.

Type 1, immediate. Same visit as the extraction.
Type 2, early with soft tissue healing. Roughly four to eight weeks. Useful when the soft tissue needs to mature but the bone is adequate, and a common compromise in the esthetic zone.
Type 3, early with partial bone healing. Roughly twelve to sixteen weeks.
Type 4, late. Six months or more, and the usual timing after a grafted socket.

In practice, a preserved socket with intact walls is re-entered at four to six months. A rebuilt wall or a sinus-adjacent site takes longer. Readiness is confirmed on a cone-beam scan and clinically, not by date alone.

The Esthetic Zone as a Special Case

In the anterior maxilla the standard is not osseointegration, it is a papilla and a contour that match the tooth next door, judged by a patient under a mirror. Thin phenotype, a high smile line, a thin or missing buccal plate, and pre-existing recession on an adjacent tooth all move the plan toward staging. Where immediate placement is chosen, it is palatal, the buccal gap is grafted, often with a connective tissue graft to thicken the phenotype, and the provisional supports the tissue rather than compressing it. Where anything is in doubt, the socket is preserved and the implant placed later into a site built to specification. Explaining that trade-off before the extraction is far easier than explaining a gray shadow afterward.

What the Restoring Dentist Should Know Before the Extraction

Four things, and they are best settled before the tooth is removed rather than after:

The final restoration. Single crown, splinted units, an overdenture, or a bridge changes whether a site is grafted for an implant at all.
Shade, smile line, and the patient’s esthetic expectations, ideally with a photograph.
The interim. What the patient will wear during healing, and whether it loads the site.
The occlusion. A patient with a parafunctional habit and no plan for it is a patient whose implant will be back.

Implants are placed from printed surgical guides against the intended tooth, so a wax-up or an STL from the referring office directly improves the result, particularly in the esthetic zone. The full handoff, including who takes the final scan, is described on restoring our implants.

What to Send When Referring

The referral slip with tooth numbers, current periapicals and a bitewing, the restorative plan, a photograph for esthetic cases, and DICOM data if the office already has a scan. Send the case before the extraction when an implant is contemplated. Details are on how to refer and the thresholds are on referral criteria.

A written report goes to the referring office after every visit, with the diagnosis, what was done, the graft material used, and the expected re-entry timing. Patients return to their own dentist for restorative care and alternating maintenance.

For dentists · Lunch and learn — implant site timing is one of the case-based talks Dr. Verrett brings to referring offices.

Extract and Graft, or Extract and Place? How the Socket Decides