Bridges aren’t a single product. There are at least four distinct types, and the right one for you depends on where the gap is, what shape the surrounding teeth are in, and what you want the result to feel and look like. Most patients come in expecting one option. They leave knowing there are several, and that’s a good thing, because choosing the wrong type of dental bridge for the situation is one of the more common reasons we see early failures.
Traditional Fixed Bridge
This is what most people picture when they think “bridge”. A false tooth (or two) suspended between two crowns that fit over the teeth either side of the gap. The whole unit is one piece, cemented in. The neighbours, the abutments, are prepared and shaped to receive the crowns.
It’s the most common type by some margin. Reliable, well-evidenced, suitable for most gap locations. We use it more than any other configuration in the practice.
Where it shines: replacing one or two teeth in a row, especially if the abutments already have fillings or crowns that would benefit from being redone anyway.
Where it doesn’t: if the abutment teeth are pristine and untouched, you’re committing them to permanent restoration. Some patients find that a real cost. Implants might suit better in that case.
Cantilever Bridge
A cantilever is a bridge supported by an abutment on one side only. The pontic hangs off the end, like a diving board. It’s used when there’s a tooth on one side of the gap but not the other, or when only one neighbour is suitable.
Less common these days. The mechanics aren’t ideal, because the abutment carries all the load, and there’s a torque effect that can stress the supporting tooth over time. Most modern dentists avoid it for back teeth where bite forces are highest.
For some front-tooth situations, particularly upper laterals, a cantilever can work well. The bite force is lower, the aesthetics matter more, and the alternative might be more invasive.
Worth knowing it exists. Worth being cautious about where it’s recommended.
Maryland Bridge (Resin-Bonded)
Maryland bridges are different. Instead of crowning the adjacent teeth, the false tooth is held in place by thin metal or porcelain wings bonded to the back of the neighbours. Almost no preparation of the abutment teeth is needed. The wings are barely visible from the front.
The big advantage: minimal damage to healthy teeth. If you’ve got pristine front teeth either side of a gap (often a missing lateral incisor, which a small percentage of people are born without), a Maryland is a conservative, reversible-ish option.
The trade-off: they don’t last as long. Five to ten years is typical, sometimes less. The bond between the wing and the back of the tooth can fail, and the bridge can debond, usually without damage but often at inconvenient moments. Re-bonding is straightforward.
Implant-Supported Bridge
This is a different category. Instead of using natural teeth as abutments, the bridge is supported by dental implants. Two (or sometimes more) implants are placed into the bone, and a bridge spans between them.
It’s used when:
- Multiple adjacent teeth are missing
- The teeth either side of a gap aren’t suitable as abutments
- The patient doesn’t want healthy teeth shaped down
- The case calls for implants but individual implants per tooth would be excessive (and expensive)
It costs more, takes longer (typically 4 to 8 months including healing time), and involves surgery. But the result, when done well, is the most stable and longest-lasting form of bridge available. Twenty to thirty year survival rates are realistic.
For the right patient, an implant-supported bridge is probably the best long-term tooth replacement option short of individual implants for every tooth. The cost is the main barrier.
Comparison at a Glance
| Type | Best For | Lifespan | Typical Cost |
|---|---|---|---|
| Traditional Fixed | 1 to 2 missing teeth, healthy abutments | 10 to 15 years | £1,200 to £2,500 |
| Cantilever | Limited cases, usually front teeth | 8 to 12 years | £1,000 to £1,800 |
| Maryland | Front teeth, minimal prep wanted | 5 to 10 years | £600 to £1,200 |
| Implant-Supported | Multiple missing teeth, no good abutments | 20+ years | £4,500 to £8,000+ |
Material Options Within Each Type
Beyond the structural type, the material matters. The main options:
- Porcelain-fused-to-metal (PFM): traditional, reliable, but can show a thin grey line at the gum if recession occurs
- Zirconia: strong, aesthetic, increasingly the default for new bridges
- Layered porcelain on zirconia: best aesthetic result, slightly more fragile than solid zirconia
- Gold or precious metal alloys: rare these days but exceptionally long-lasting, used occasionally for back teeth
For visible front teeth, modern ceramic options look noticeably better. For back teeth taking heavy chewing load, zirconia or PFM are usually preferred for durability.
Front Teeth Versus Back Teeth: The Decision Changes
Where the bridge sits in the mouth changes the calculus quite a bit. Front teeth are about appearance first, function second. Back teeth, especially molars, are about handling significant chewing load while still looking acceptable.
For front-tooth bridges, we’re usually looking at full-ceramic or layered porcelain on zirconia. The aesthetic match has to be excellent because everyone sees the tooth every time you smile or speak. A Maryland might be appropriate for a single missing upper lateral. A traditional 3-unit works for a missing central incisor between two crowned or heavily restored neighbours.
For back-tooth bridges, durability matters more. Solid zirconia or PFM is usually the call. The aesthetics still matter (most people don’t want a metallic flash when they laugh) but they don’t drive the choice the way they do up front.
Implant-supported bridges work well in both regions but are particularly useful at the back, where chewing forces are at their highest and traditional bridges sometimes struggle long-term.
That’s something worth flagging at consultation. The same patient can need different bridge types in different parts of the mouth.
What Type of Bridge Will Suit You?
The honest answer: it depends on the assessment. The factors that matter:
- Where the missing tooth is
- How healthy the surrounding teeth are
- Bone level in the area
- Your bite and any grinding habits
- Aesthetic priorities (front vs back)
- Budget
- Whether you’d accept surgery
Some practices online suggest patients can decide which bridge they want before the consultation. In our experience, that’s not really how it works. You can come in with a preference. But the suitable options narrow down quickly once we look at X-rays, gum health, and the condition of the abutments.
Actually, that’s the thing patients often find reassuring. The decision is collaborative. We’ll lay out the options that genuinely apply to your mouth, explain the trade-offs, and let you choose between the realistic candidates.
The British Dental Association has some general patient information on treatment options if you want a neutral overview before booking anything.
The Wrong Bridge for the Job
One last thing. We’ve seen patients arrive with bridges that should never have been recommended for their situation. A 5-unit bridge spanning teeth that couldn’t take the load. A Maryland in a back tooth where it was certain to debond. A cantilever placed on a single root-treated abutment.
Bridges fail far more often when the type chosen doesn’t match the situation. That’s a separate problem from a “good” or “bad” bridge in the abstract. A perfectly-made Maryland in the wrong position will still fail. A modest 3-unit zirconia in the right position will outperform it for years.
So the question isn’t really “which bridge is best?”. It’s “which bridge is best for me?”.
If you’d like to talk through which type might suit your situation, our team at Westcliff Dental Practice is happy to assess and walk you through the realistic options. Give us a call on 01702 344 500 to arrange a consultation.
