What are dental implants, really?

The short version: a dental implant is a titanium (or ceramic) screw placed into your jawbone that acts as a replacement root. A crown, bridge, or denture is attached on top. Everything else is detail.

The three-part structure

Every modern dental implant is three separate pieces:

1. The fixture (the implant itself). A small screw, usually titanium, surgically placed into the jawbone. Over 3–6 months it fuses with the bone — a process called osseointegration.
2. The abutment. A connector piece that sits above the gum line and joins the fixture to the visible tooth.
3. The crown (or bridge, or denture). The part you see. Made of porcelain or zirconia for single teeth; acrylic or composite for some dentures.

This three-part design is why implants can last decades: if a crown chips, you replace the crown — not the implant in the bone.

What they're made of

Two materials dominate the UK market:

• Titanium. The default since the 1960s. Biocompatible, strong, and decades of clinical data. The Brånemark titanium protocol is still the benchmark against which all other implant systems are measured.
• Zirconia (ceramic). Newer. White instead of grey, which matters if you have thin gums or a high smile line. Less long-term data than titanium, and usually more expensive. A minority of UK implantologists offer it.

Most patients never see the fixture or abutment. Unless you specifically want metal-free, titanium is the standard answer.

How the procedure actually works

A single-tooth implant in the UK typically goes through these stages, spread over 3–9 months:

1. Consultation and planning. Clinical exam, 3D cone-beam CT scan, bone-volume assessment. This is where your dentist decides whether an implant is safely possible and designs the crown placement.
2. Any prep work. Bone grafts or sinus lifts if you don't have enough bone — common after extractions or long-term denture wear. Adds 3–6 months to the timeline.
3. Fixture placement. A surgical appointment, typically 60–90 minutes per implant, under local anaesthetic. Most patients go back to work the next day.
4. Healing (osseointegration). 3–6 months of waiting while bone grows around the fixture. You wear a temporary tooth during this phase.
5. Abutment and crown fitting. A second short appointment to attach the abutment, take an impression, and later fit the final crown.

Same-day "teeth in a day" protocols (All-on-4, All-on-6) compress stages 3 and 5 into one appointment but require specific clinical conditions. They are not magic — they still need osseointegration time before the final crown is fitted.

How long do they last?

Published survival rates for single-tooth implants at 10 years are 94–97% based on aggregated literature. At 20 years, rates remain above 85% in well-maintained patients. Brånemark patients with implants placed in the 1960s have been documented with functioning fixtures 40+ years later.

Failures usually come from one of three places:

• Peri-implantitis — gum disease around the implant. Preventable with cleaning and maintenance visits.
• Smoking. Doubles the failure rate. Non-negotiable for most implantologists; some won't place implants in active smokers.
• Uncontrolled diabetes or immunosuppression — affects healing.

Who fits them in the UK?

Two categories of clinician can place implants in the UK:

• General dentists with implant training. Postgraduate diplomas (typically 1–3 years) from bodies like the ADI (Association of Dental Implantology) or UCL Eastman.
• Specialist implantologists. Though "implantologist" is not a General Dental Council protected specialty in the UK, clinicians with extensive surgical training and postgraduate qualifications often use the term.

Always verify your clinician on the GDC register. A placing-dentist's registration is public, free to search, and tells you their qualifications.

What they can't do

Implants are not right for everyone:

• Severe bone loss without grafting options.
• Active, uncontrolled gum disease (must be treated first).
• Certain bisphosphonate medications, particularly IV.
• Adolescents whose jaw growth is not complete (typically under 18–21).

A competent consultation will rule you in or out honestly. If a clinic quotes you for implants without a CT scan first, that is a warning sign. See our red flags guide.

Next up in the guide

Clinical information on this page summarises publicly available guidance from the NHS, NICE, and ADI. It is not medical or dental advice. Any decision about treatment should be made with a qualified clinician after an in-person assessment.