Last Update: September 25, 2026

How do Dental Implants Work?

Dr. Daniel Nejat, DMD

A dental implant works by replacing the root of a missing tooth rather than the part you can see. A small titanium post is placed into the jawbone, the bone grows onto its surface and locks it in place, and a crown is attached on top. The result is an artificial tooth that stands on its own, without touching the healthy teeth on either side.

That bond between bone and metal is what makes the whole thing work, and it is the reason implants behave so differently from a bridge or a denture. Here is what an implant is made of, how it fuses to bone, and what happens at each step.

Dental Implant

Diagram of a Dental Implant

What Makes Up A Dental Implant?

Most implant systems have three parts:

  • The implant post. The screw-shaped piece placed surgically into the jawbone, taking the place of a natural tooth root. It is usually about 6 to 13 millimeters long, roughly the size of the root it replaces.
  • The abutment. The connector that sits at the gum line and joins the implant to the tooth above it. Some systems are one-piece, with the implant abutment built in.
  • The crown. The visible new artificial tooth, custom made to match the shade and shape of your natural teeth. It either screws into the abutment or is cemented onto it.

Replacing several teeth uses the same components in a different arrangement. Two implants can carry a three-tooth bridge, and a full arch can sit on four to six implants. You need fewer implants than you have missing teeth.

Dental Implants are designed like natural teeth

Dental Implants are designed like natural teeth

Crown

Crown

Root

Root

Why Titanium?

Titanium is biocompatible: the body accepts it rather than treating it as a foreign object, and it does not decay the way a natural tooth root can. Bone will grow directly onto a titanium surface and hold it, which is not true of most materials. It has been used in implant dentistry for decades, which is why it remains the default. Where a patient wants a metal-free option, zirconia implants are an alternative, with their own trade-offs. The implants we use come from established manufacturers, listed on our page about the implant brands we use.

How Does The Implant Bond To Bone?

Through a process called osseointegration. After the implant post is placed, bone cells grow across its textured surface over the following months until the implant is locked into the jaw and can take the force of chewing. This is why the implant has to be left to heal before the final tooth goes on it, and it is also why an implant that is stable at placement can sometimes carry a temporary tooth straight away. Our page on osseointegration goes into the biology in more detail.

Dental Implant is placed

Dental Implant is placed

Dental Implant is placed

Dental Implant is placed

Osseointegration – dental implant healing process where the implant integrates with the bone

Osseointegration – dental implant healing process where the implant integrates with the bone

Dental Implant is exposed a second time

Dental Implant is exposed a second time

A crown is attached to the dental implant

A crown is attached to the dental implant

The Dental Implant Procedure, Step By Step

  1. Assessment and planning. We review your medical history, examine the gum tissue and take a 3D CBCT scan to measure the bone. The scan drives the treatment plan and, in most cases, a surgical guide.
  2. Extraction, if needed. A failing tooth is removed, often at the same visit as implant placement.
  3. Bone grafting, if needed. Where bone is thin, a bone graft rebuilds the site first. Where bone loss is severe, graftless options such as pterygoid implants can anchor into bone that is still solid.
  4. Implant placement. Minor surgery under local anesthesia, with sedation if you want it. The implant is placed into the prepared site, often through a small opening in the gum rather than a large flap.
  5. Healing. About 3 months of osseointegration, usually with a temporary tooth in place.
  6. Abutment and crown. The abutment is fitted, a digital scan or impression is taken, and the lab makes the final crown.

Our page on how long the process takes sets out the calendar stage by stage.

Why An Implant Works Better Than The Alternatives

A tooth-supported bridge works by grinding down the healthy teeth on either side of the gap to carry the load. A removable denture rests on the gum and has to be taken out. Neither does anything for the bone underneath.

Because an implant is anchored in the jaw, it transmits chewing force into the bone the way a tooth root does, and the bone responds by staying where it is. That is the practical difference: an implant replaces the tooth, but it also keeps the jaw from shrinking where the tooth used to be.

Who Is A Good Candidate For Dental Implants?

Most adults with healthy gums and enough bone qualify for dental implants. Things we check before confirming: active gum disease, which is treated first; smoking, which slows healing; medical conditions such as uncontrolled diabetes or osteoporosis medication, which can affect how bone heals; and the bite, because heavy grinding puts extra load on the implant.

Not having enough bone is rarely the end of the conversation. It usually just changes the plan.

Who Should Place Your Implant?

Implants can be placed by a general dentist, an oral and maxillofacial surgeon or a periodontist. Periodontists are the specialists in the gum and bone that hold implants in place, which is the part of the treatment that decides whether it lasts. Our board-certified periodontists have placed more than 10,000 implants and have worked with immediate load treatment since 1998.

What Can Go Wrong?

Implant failure is uncommon, but it happens. The main risks are infection around the implant during healing, too little bone support, heavy bite forces, and smoking. Long after healing, the risk shifts to gum disease around the implant, which our page on implant infections covers. Regular checkups catch both early.

Book A Consultation

If you want to know what implant treatment would involve in your case, a consultation and a scan will answer it. Call (347) 493-2439 or schedule a consultation.

Frequently Asked Questions

How Painful Is Getting A Dental Implant?

The placement itself should not hurt, because the area is fully numbed, and most patients report mild soreness for a few days afterwards. Our page on whether dental implants hurt goes through it in detail.

How Long Do You Go Without Teeth When Getting Implants?

Usually not at all. A temporary tooth or bridge is normally fitted so you are not left with a visible gap while the implant heals.

Do Dental Implants Feel Like Real Teeth?

Once healed, yes. You brush and floss an implant like a natural tooth, and most patients stop noticing it.

How Long Do Dental Implants Last?

A well-placed implant can last a lifetime with good home care and regular maintenance. The crown on top may need replacing at some point, which is a much smaller job than replacing the implant.

Can One Implant Replace More Than One Tooth?

Not on its own, but two implants can support a bridge spanning three or four teeth, and four to six can support a whole arch.

Dr. Daniel Nejat, DMD

Dr. Daniel Nejat is a board-certified periodontist and a Diplomate of the American Board of Periodontology. As one of the leading NYC periodontists, he has made significant achievements beyond the educational requirements of the specialty. Dr. Nejat has been practicing since 2003. Dr. Daniel Nejat is a member of the American Academy of Periodontology, the Northeastern Society of Periodontists, the American Board of Periodontology, the Academy of Osseointegration, and the New York Dental Society.

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