A dental implant rebuilds a tooth from the root up by placing a titanium post into the jawbone where the natural root used to sit, allowing bone to grow directly onto that post, and then building the visible tooth on top of it. The order matters. The root goes first because the jawbone only holds its shape while something is loading it, and bone that loses its root loses 29% to 63% of its width within six months, according to a systematic review published in Clinical Oral Implants Research. Ten-year implant survival at the implant level sits at 96.4% across 18 prospective studies pooled in the Journal of Dentistry. Below we cover why the root has to come first, what osseointegration actually is, every step of the process and how long each takes, what happens when there is not enough bone, and what keeps an implant stable for decades.
Key Takeaways
- An implant has three parts: a titanium post that replaces the root, an abutment connector, and the crown you actually see.
- Jawbone resorbs once a root is gone, losing 29% to 63% of width and 11% to 22% of height within six months, which is why replacing the root matters as much as replacing the tooth.
- Osseointegration is bone growing directly onto the implant surface, and it takes three to nine months depending on how quickly a person heals.
- Ten-year implant survival is 96.4%, and 25-year survival reached 95% among patients who kept up regular supportive care.
- An implant cannot decay, because titanium and ceramic are not biological material. The vulnerable part is the bone and gum around it.
- Supportive care more than twice a year was strongly protective against peri-implant problems, with an odds ratio of 0.16.
What Is a Dental Implant and How Does It Work?
A dental implant is a small threaded titanium post placed surgically into the jawbone to serve as an artificial tooth root, with a connector and a crown built on top of it. An implant works by becoming part of the bone rather than by resting on top of it, which is what separates it from every other tooth replacement.
Becoming part of the bone happens across three components, and naming them in order makes the rest of this article easier to follow.
The post is the implant itself, a threaded cylinder placed into the jaw where the root used to be. The abutment is a small connector that screws into the post and passes through the gum. The restoration is the crown that sits on the abutment and does the visible work. Most posts are titanium and some are ceramic, and both materials are biocompatible according to Cleveland Clinic. Ten-year survival at the implant level reaches 96.4%, with a prediction interval of 91.5% to 99.4%, across a systematic review and sensitivity meta-analysis of 18 prospective studies published in the Journal of Dentistry. We place dental implants for single and multiple tooth restorations, and the post is only the first third of the work.
Why Does an Implant Replace the Root and Not Just the Tooth?
An implant replaces the root because the jawbone that held your tooth exists in response to that root, and bone with nothing to support begins to disappear. Alveolar bone is the specialized bone that surrounds tooth roots, and it maintains its volume only while a root is transmitting chewing force into it. Remove the root and you remove the stimulus.
Removing the stimulus starts a measurable process rather than a vague one. A crown-only replacement, such as a bridge that spans the gap, restores what you can see and leaves the bone underneath with nothing to do. An implant post puts load back into that bone, which is the entire reason the root gets rebuilt first.
What Happens to the Jawbone After a Tooth Is Removed?
After a tooth is removed, the jawbone around the empty socket resorbs, and most of that loss happens within the first three to six months. A systematic review of post-extraction dimensional changes published in Clinical Oral Implants Research found horizontal bone loss of 29% to 63% and vertical bone loss of 11% to 22% at six months, with rapid reductions early and gradual reductions afterward.
| Timeframe after extraction | Width (horizontal) loss | Height (vertical) loss |
|---|---|---|
| First 3 months | Roughly two-thirds of the total, averaging 3.87 mm | Most of the total, then slowing |
| 6 months, as a percentage | 29% to 63% | 11% to 22% |
| 6 months, weighted average | 3.79 mm | 1.24 mm |
| Cheek-side wall specifically | Resorbs faster than the tongue-side wall | Reduced by 2.5 mm on average against the tongue side |
Sources: Clinical Oral Implants Research, systematic review of post-extractional alveolar hard and soft tissue dimensional changes in humans; Avila-Ortiz and colleagues on post-extraction ridge dimensional change; Cardaropoli, study of extraction socket healing over six months.
The cheek-side row in that table explains a great deal about timing. The outer bone wall is often thin and depends on the blood supply the root’s own ligament provided, so it thins fastest once the root is gone. That asymmetric loss is why a long-delayed implant frequently needs bone rebuilt before it can be placed, and why we prefer to plan for a single tooth replacement early rather than waiting to see what happens.
What Is Osseointegration?
Osseointegration is the process where living bone grows directly onto the surface of the implant post and locks it in place. Bone cells migrate onto the microscopically roughened titanium surface, deposit new bone into it, and form a direct mechanical interlock between jaw and implant with no soft tissue layer in between. That interlock is what makes an implant able to take chewing force.
Taking chewing force is a privilege the implant has to earn, and it earns it slowly. Cleveland Clinic puts osseointegration at three to nine months depending on how quickly a person heals, while Delta Dental describes the implant body and bone healing for two to six months before restoration. Both ranges describe the same biology, and where you land inside them depends on bone density, the site in the jaw, general health, and habits like smoking that reduce blood supply to healing tissue.
Reduced blood supply is the reason this timeline resists shortcuts. Soft tissue over the site closes in about a week according to Cleveland Clinic, which is why patients feel normal long before the implant is ready to be loaded. Feeling normal and being integrated are two different milestones separated by several months.
What Are the Steps of a Dental Implant Procedure?
The steps of a dental implant procedure run from assessment and imaging through placement, healing, abutment, and final crown. Placement itself is one appointment. The full sequence spans several months because osseointegration sits in the middle of it.
- Assessment and 3D imaging. We map bone volume, bone density, and the position of nerves and sinuses, then plan the implant position and angle before anything is done. Our San Ramon and Modesto offices are both built around a 3D imaging center for exactly this.
- Extraction, if the tooth is still present. The tooth is removed as atraximatically as possible, since preserving the socket walls preserves the bone the implant will need.
- Bone grafting, if the site needs it. Graft material fills deficient areas and is left to mature before placement. This step is skipped where bone volume is already sufficient.
- Implant placement. Under local anesthetic, a small incision exposes the bone, a channel is prepared to precisely match the implant, and the post is placed. The gum is then closed over or around it.
- Osseointegration. Three to nine months while bone grows onto the post. A temporary tooth is usually provided for front teeth so there is no visible gap.
- Abutment placement. Once integration is confirmed, the connector is attached and the gum is allowed to heal around it, shaping the tissue that will frame the crown.
- Impressions and crown fabrication. Digital scans or impressions go to the lab, where the crown is built to match the neighbouring teeth in shape, shade, and surface texture.
- Final crown placement. The crown is fitted, the bite is checked and adjusted, and the restoration is secured. Cleveland Clinic notes this appointment usually takes about an hour.
How Long Does the Whole Dental Implant Process Take?
The whole dental implant process usually takes between four and twelve months from first appointment to final crown, and osseointegration accounts for most of that. Add several months if the site needs a bone graft first, since graft material has to mature before an implant can be placed into it. Straightforward cases with good bone volume sit at the shorter end.
Can a Dental Implant Be Done in One Day?
A replacement tooth can sometimes be placed the same day as implant surgery, though not everyone is a candidate for it, as Delta Dental notes. Same-day approaches place a temporary restoration on the implant immediately rather than skipping osseointegration, which still has to happen underneath. Candidacy depends on bone density and how much initial stability the implant achieves at placement, which is something measurable rather than something a patient can request.
Do Dental Implants Hurt?
Dental implants do not hurt during placement, because the area is fully numbed with local anesthetic before anything begins. Most patients describe pressure rather than pain during the procedure, and mild soreness and swelling for a few days afterward. Cleveland Clinic reports that the first round of healing takes about one week and that most people feel like themselves again within that time.
Feeling like yourself again within a week surprises patients who expected worse, and the reason is that bone has no pain receptors in the way soft tissue does. The discomfort that does occur comes mostly from the gum incision and the surrounding tissue rather than from the bone itself. Sedation is available for patients who want it, and the decision is made in advance rather than in the chair.
Can You Get a Dental Implant if You Have Bone Loss?
Yes, you can usually get a dental implant with bone loss, because bone can be rebuilt before the implant is placed. Insufficient bone volume is a sequencing problem rather than a disqualification in most cases. Given that 29% to 63% of ridge width can disappear within six months of an extraction, patients who lost a tooth years ago frequently need this step.
What Is a Bone Graft and When Is It Needed?
A bone graft is a procedure that adds bone material to a deficient area of the jaw so an implant has enough volume to anchor into. Graft material can be synthetic, or it can come from elsewhere in your own body or from a donor source, and it acts as a scaffold that your own bone grows into and replaces over several months. A graft is needed where the ridge has resorbed below the width or height the implant requires, which the 3D scan measures before any decision is made.
Measuring before deciding is why this part of implant work is more technical than it looks. Both of our doctors’ postgraduate training covers bone grafting, and Dr. Fernández trained specifically in advanced bone regeneration and soft tissue management alongside dental implants. You can read about both doctors’ backgrounds on our about us page.
What Is a Sinus Lift?
A sinus lift is a bone grafting procedure used in the upper back jaw, where the maxillary sinus sits directly above the tooth roots and limits available bone height. After upper molars are lost, the sinus floor tends to expand downward into the space, which combines with normal ridge resorption to leave too little bone for an implant. The procedure raises the sinus membrane and places graft material beneath it to create the needed height.
Does an Implant Look and Feel Like a Natural Tooth?
A well-made implant looks and functions like a natural tooth, and most patients stop noticing it is there. Whether it looks natural depends far less on the implant than on the gum and bone contours built around it. An implant crown placed into a flat, resorbed ridge reads as a tooth sitting on a gum. An implant crown emerging from a properly shaped gum line reads as a tooth.
Shaping the gum line is the part of implant crown work we treat as the real work rather than as finishing. Restoring natural gum contour does four things at once: it makes the crown look like a tooth, it stops food packing between the implant and the teeth beside it, it prevents the irritation that trapped food causes, and it supports the periodontal health of the surrounding tissue and underlying bone. That fourth benefit is the one that decides how long the whole thing lasts.
Deciding how long it lasts brings tissue health to the front of the conversation, which is also why gum condition around an implant gets monitored as closely as the implant. Existing gum recession around neighbouring teeth changes the design brief, because the new crown has to look right next to the gum line you actually have.
The gum line you actually have is what the crown gets built against. Our lab collaboration on implant crown work across San Ramon is what makes matching realistic rather than approximate, and you can see the difference in our case results.
What Does an Implant Not Restore?
An implant does not restore the periodontal ligament, and that is the one genuine difference from a natural tooth. The ligament is the thin layer of fibrous tissue that suspends a natural root in bone, cushions chewing force, and senses pressure so your jaw muscles know how hard to bite. An implant is locked directly into bone with no ligament, so it transmits force without cushioning and without that feedback. Most patients never notice, though it is the reason a heavy bite gets assessed before treatment rather than after.
Can a Dental Implant Get a Cavity?
No, a dental implant cannot get a cavity. Titanium, ceramic, and the porcelain of the crown are not biological material, so bacteria have nothing to decay. That sounds like unqualified good news and it is worth reading carefully, because it also means the failure mode has moved.
The failure mode moves entirely to the bone and gum surrounding the implant. A natural tooth can be lost to decay, to gum disease, or to fracture. An implant can only be lost through the tissue holding it, which makes that tissue the whole story rather than one factor among several.
Making tissue the whole story also removes an early warning system. A decaying natural tooth eventually becomes sensitive and tells you something is wrong. An implant has no nerve, so peri-implant problems can advance considerably without producing any sensation at all, which is why monitoring replaces symptoms as the detection method.
What Keeps a Dental Implant Stable Long Term?
Regular professional monitoring and consistent home cleaning are what keep a dental implant stable long term. Supportive peri-implant care more than twice a year was strongly protective against moderate to severe peri-implant inflammation, carrying an odds ratio of 0.16 in a study of 511 implants with a mean function time of 13.3 years. That same group recorded 96.5% implant survival across those years.
Those years of function come with tissue conditions worth knowing about by name. Peri-implant mucositis is inflammation of the gum around an implant and is reversible. Peri-implantitis involves bone loss around the implant and is not. A systematic review of 102 studies published in the Journal of Periodontology found patient-level prevalence of 46% for mucositis and 21% for peri-implantitis, and a separate review of 57 articles in BMC Oral Health put peri-implantitis at 19.53% at the patient level and 12.53% at the implant level.
Reviewing that same body of research, the AO/AAP analysis found more than half of implant patients were affected by some form of peri-implant condition across a ten-year period. We give you those numbers rather than a reassuring vagueness because the actionable part is genuinely encouraging: the single strongest protective factor identified is regular supportive care, which is entirely within reach. A professional cleaning schedule is not a formality on an implant patient.
Formality aside, force matters as much as bacteria. An implant has no ligament to cushion load, so chronic teeth grinding transmits its full force into bone and into the crown. Grinding gets addressed as part of implant planning rather than discovered afterward.
How Do You Clean a Dental Implant?
You clean a dental implant by brushing it like a natural tooth and cleaning carefully around the gum line where the crown meets tissue. Brush twice daily with a soft brush, and clean between the implant and its neighbours daily using floss, interdental brushes, or a water flosser. The gum line margin is the area that matters most, since that seam is where bacteria reach the tissue holding the implant. Professional monitoring checks probing depths and bone levels that no home routine can assess.
How Long Do Dental Implants Last?
Dental implants last decades, and many last a lifetime. Pooled ten-year survival at the implant level is 96.4%, and survival was still 95% at twenty-five years among patients who kept up a supportive care programme. The crown on top has a shorter working life than the implant beneath it.
| Follow-up period | Implant survival | Population |
|---|---|---|
| 10 years | 96.4% | 18 pooled prospective studies |
| 10 years | 99.4% / 95.9% | Without systemic disease / medically compromised |
| 13.3 years mean | 96.5% | 511 implants under long-term follow-up |
| 20 years | 88% | 1,440 implants across 5 retrospective studies |
| 25 years | 95% | Patients compliant with supportive implant therapy |
Sources: Journal of Dentistry, systematic review and sensitivity meta-analysis of ten-year implant survival; Clinical Oral Investigations, 20-year meta-analysis of implant survival; Clinical Implant Dentistry and Related Research, retrospective 25-year study under supportive implant therapy; ten-year survival study of bone-level implants in medically compromised patients.
Comparing the twenty-year row against the twenty-five-year row is the most useful thing in that table. The higher figure at the longer follow-up is not a contradiction. It is what supportive care does, and it is the clearest argument for maintenance anywhere in the research. Earlier systematic reviews using older implant surfaces put ten-year survival at 92.8% and 93.1%, so the numbers have improved as surfaces and protocols have.
Improving alongside the implant is the restoration on top, though it has a different lifespan. Cleveland Clinic reports most crowns and bridges last around 15 years, so a patient with a thirty-year implant treatment may replace the crown once along the way while the post itself stays put.
Is a Dental Implant Better Than a Bridge?
A dental implant is generally better than a bridge for a single missing tooth, and the reason is what each one asks of the teeth around it. A bridge requires reducing at least one healthy tooth on either side of the gap to carry the span. An implant involves no neighbouring teeth at all.
Involving no neighbours means an implant keeps a one-tooth problem as a one-tooth problem. A three-unit bridge converts one missing tooth into three teeth carrying permanent restorations, and the two supporting teeth give up enamel they never needed to give up. That trade-off is the reason we would rather leave the neighboring teeth untouched wherever the bone allows an implant.
Bone allowing it is the honest qualifier, and a bridge remains the better answer in some situations. Where bone volume is genuinely inadequate and grafting is not suitable, or where the adjacent teeth already carry large restorations and would need dental crown coverage regardless, a bridge no longer sacrifices healthy structure, because little healthy structure remains to sacrifice. The comparison is case by case rather than settled in advance.
When Does a Tooth Need Replacing Instead of Repairing?
A tooth needs replacing rather than repairing when there is not enough sound structure left to hold a restoration, when the root has a vertical fracture, or when bone support has been lost beyond recovery. Saving the natural tooth comes first in every case where it is possible, because nothing we can build matches what you were born with. Here is what we assess before recommending replacement:
- Remaining sound structure. A crown needs a band of solid tooth above the bone to grip. Without it, there is nothing for a restoration to hold onto.
- Root integrity. A vertical fracture running lengthwise down the root creates a permanent bacterial channel that no seal can close, and it is the finding that most reliably ends a tooth.
- Bone support. A root needs bone around it. Advanced periodontal bone loss leaves a tooth mobile whether or not anything else is wrong.
- Prior treatment history. A tooth that has already been retreated more than once, with continued infection, has a different prognosis from one facing its first treatment.
- Bone available for the alternative. Ridge volume determines whether an implant is straightforward, needs grafting first, or is not the right route.
- General health and healing. Conditions affecting healing get reviewed carefully. A 2025 scoping review in Clinical Oral Implants Research found comparable implant success rates in people with and without autoimmune diseases, so many conditions patients assume are disqualifying are not.
Not disqualifying is a phrase worth repeating, since a large number of patients rule themselves out before asking. Cases where the whole bite has been affected by years of tooth loss and wear get handled as oral rehabilitation, planning the full arrangement rather than replacing teeth one at a time in isolation.
What Should You Know Before Getting a Dental Implant?
Before getting a dental implant you should know that the timeline is set by biology rather than by scheduling, that bone volume determines what is possible, that the gum contour around the crown decides how natural it looks, and that long-term stability depends on maintenance rather than on the implant itself. The most useful thing to ask is what the bone at that site looks like right now, because the answer shapes every other decision.
Every other decision includes timing, and timing is where the bone data earns its place. Given that most ridge resorption happens inside the first three to six months after extraction, the window where an implant is most straightforward is early. Waiting years and then asking about implants usually means adding a grafting phase that would not have been necessary.
Necessary work is worth doing and unnecessary work is worth avoiding, which is the whole reason we plan the replacement at the same time we discuss the extraction rather than afterward. A scan taken at the point of extraction answers the bone question while every option is still open.
Frequently Asked Questions
Can You Get an MRI With Dental Implants?
Yes, you can get an MRI with dental implants. Titanium and zirconia are not ferromagnetic, meaning they are not attracted to magnetic fields, so an implant will not move, shift, or pull during a scan. What implants can do is create a localized distortion in the image around the implant site, which matters only when the scan targets the head, jaw, or neck. Tell your radiologist and MRI technologist that you have implants, since they can adjust the imaging sequence to reduce that distortion.
Can You Have a CT Scan With Dental Implants?
Yes, you can have a CT scan with dental implants, and CT imaging is used routinely in implant dentistry itself. Dense materials can create streaking around the implant on the image, and radiologists adjust protocols to work around it. The 3D imaging we use to plan implant placement is the same category of technology, which is how we assess bone volume and position before treatment.
Can You Get a Dental Implant if You Have Gum Disease?
Active gum disease is treated before an implant is placed, rather than being a permanent barrier to one. Untreated periodontal disease is listed by Cleveland Clinic among the conditions that make implants inadvisable, because the same bacteria and the same host response that damage bone around natural teeth damage bone around implants. Once the disease is controlled and the tissue is stable, implant treatment often becomes an option. Given that peri-implant conditions affect a substantial share of implant patients over time, a history of gum disease also means the maintenance schedule matters more.
At What Age Can You Get a Dental Implant?
The minimum age for a dental implant is typically 18, and there is no upper limit, according to Cleveland Clinic. Jaw growth has to be finished first, because an implant does not move with a growing jaw the way a natural tooth does, and placing one too early leaves it out of position later. At the other end, age itself is not a barrier. Ten-year survival reached 95.9% even among medically compromised patients, so general health and bone volume matter far more than the number of years.
What Matters Most
A tooth is more than what you can see. The visible crown does the chewing, but the root is what keeps the bone around it alive and holding its shape. That is why an implant starts at the bottom: the post goes into the jaw first, bone grows onto it over three to nine months, and only then does the visible tooth get built on top. Skip the root and the bone underneath keeps disappearing at 29% to 63% of its width in the first six months, whatever sits above it.
The numbers on durability are strong. 96.4% survival at ten years, and 95% still in place at twenty-five years among patients who kept up regular care. The part that deserves saying plainly is that the second figure depends on the care, not just on the implant. An implant cannot decay, which means the bone and gum around it are the only things that can be lost, and those need watching in a way a natural tooth partly does for itself.
Our San Ramon and Modesto offices are both set up for the planning end of this, with the 3D imaging that shows what bone is actually there before anything is decided.
If you are facing an extraction, or have a gap you have lived with for a while, the bone question is worth answering sooner rather than later. Everyone at DDS With A Smile is glad to scan the site and tell you honestly what the options are.
You are welcome to arrange a visit whenever you are ready.