If you have lost a single tooth, you will typically be offered two main replacement options: a dental implant or a fixed bridge. The implant costs more upfront — usually £1,500–£3,500 compared to £1,200–£2,500 for a bridge. But the comparison over a 15–20 year period is more nuanced than the initial price suggests.
What Is a Dental Bridge?
A fixed dental bridge replaces a missing tooth by anchoring an artificial tooth (the pontic) to the two natural teeth on either side of the gap (the abutment teeth). These adjacent teeth are permanently reduced (ground down) to accommodate the bridge crowns, and the bridge is cemented in place.
A three-unit bridge — two crowns and one replacement tooth — typically costs £1,200–£2,500 at UK private clinics. On the NHS, a bridge falls under Band 3 treatment, currently £306.80 in England.
What Is a Dental Implant?
A dental implant replaces the entire tooth from root to crown. A titanium post is surgically placed into the jawbone, where it integrates over 3–6 months. A custom crown is then attached via an abutment. Unlike a bridge, an implant does not involve any modification of adjacent healthy teeth.
A single implant with crown costs £1,500–£3,500 at UK private clinics. NHS implants are not routinely available.
Implant vs Bridge: The Key Differences
- Adjacent teeth: A bridge permanently damages two healthy teeth; an implant leaves them untouched.
- Jawbone health: An implant stimulates the jawbone and prevents the bone loss that follows tooth loss. A bridge does not — bone resorption beneath the pontic will occur over time.
- Longevity: A well-maintained implant can last 20–25+ years. Bridges typically need replacing after 10–15 years.
- Cleaning: Implants can be cleaned like natural teeth. Bridges require special flossing techniques around the pontic.
- Feel: Most patients report that implants feel more natural than bridges.
- Upfront cost: Bridges are cheaper initially — roughly 40–60% of implant cost.
- NHS availability: Bridges are available on the NHS in suitable clinical cases; implants are not.
Which Is Cheaper Over a Lifetime?
Over a 20-year period, an implant is generally the more cost-effective option:
- Bridge scenario: £2,000 initial cost + £2,200 replacement at year 12 + potential for further replacement = £4,200+ over 20 years
- Implant scenario: £2,500 initial cost + occasional crown replacement at year 15–20 = £2,500–£3,500 over 20 years
These are approximations, and individual cases vary. A bridge may be the more practical choice if the adjacent teeth already require crowns, if the patient’s bone density is insufficient for an implant without grafting, or if the patient is young and the implant site is still growing.
When a Bridge May Be the Better Choice
- The adjacent teeth are already compromised and would benefit from crowns
- Insufficient bone depth for an implant without costly grafting
- Medical conditions that increase surgical risk (uncontrolled diabetes, blood thinners, immunosuppression)
- The patient is under 18 — jaw growth must be complete before implant placement
- NHS budget is the primary constraint and the case qualifies for Band 3 treatment
When an Implant Is the Better Choice
- The adjacent teeth are healthy — preserving them is worth the higher cost
- The patient is young and wants a solution that will last several decades
- Jawbone preservation is a concern (multiple missing teeth, known bone loss)
- The patient wants the closest equivalent to a natural tooth
- Multiple missing teeth — implants can support bridges without involving natural teeth
Frequently Asked Questions
Is a dental implant better than a bridge?
For most patients with healthy adjacent teeth, a dental implant is the superior long-term solution. It does not damage neighbouring teeth, preserves jawbone, and typically lasts longer. A bridge may be preferable if the adjacent teeth already need crowns or if the patient cannot undergo surgery.
How much does a bridge cost compared to an implant in the UK?
A three-unit fixed bridge costs £1,200–£2,500 privately in the UK, or £306.80 on the NHS (Band 3). A single implant costs £1,500–£3,500 privately and is not routinely available on the NHS.
How long do dental bridges last in the UK?
A well-maintained dental bridge typically lasts 10–15 years before needing replacement. A dental implant can last 20–25 years or more. Over a lifetime, this makes implants more cost-effective despite the higher initial outlay.
Can I have an implant if I previously had a bridge?
Usually yes. When a bridge is removed, the site can be assessed for implant suitability. Bone loss beneath the bridge pontic may have occurred, and a graft could be needed — but most cases are treatable.