Dental Bridge Materials Compared: PFM vs Ceramic vs Zirconia vs Gold
Updated 16 April 2026
Material choice is the single largest cost variable you control when getting a dental bridge. It also determines how the bridge looks, how long it lasts, and which tooth positions it can safely restore.
Material Comparison at a Glance
| Material | Per Unit | Aesthetics | Strength | Lifespan | Best For |
|---|---|---|---|---|---|
| PFM | $500-$850 | Good | High | 10-15 yr | Back teeth, budget |
| All-Ceramic | $650-$1,100 | Excellent | Medium | 10-15 yr | Front teeth |
| Zirconia | $700-$1,200 | Very Good | Highest | 15-20 yr | Any position |
| Gold | $600-$1,020 | Poor | High | 15-20+ yr | Back molars |
Porcelain-Fused-to-Metal (PFM)
$500 - $850/unit
1.0x (baseline)
The workhorse of dental bridges for over 40 years. A metal substructure (typically nickel-chromium or cobalt-chromium alloy) provides the strength, while a porcelain overlay provides tooth-coloured aesthetics. PFM bridges offer the best combination of affordability and durability. The metal framework rarely breaks, and the porcelain layer can be repaired in some cases.
Aesthetics
Good
Strength
High (flexural strength ~300-500 MPa)
Lifespan
10-15 years
Best For
Back teeth (molars, premolars) where aesthetics are less critical and strength is the priority. Also the best choice for budget-conscious patients who need a reliable bridge.
Advantages
- Most affordable option at 1.0x baseline cost
- Strong metal framework provides excellent structural integrity
- Widely available, every dental lab can fabricate PFM bridges
- Good insurance coverage since it is the standard material
Limitations
- Dark metal line can show at the gum margin, especially if gums recede
- Metal allergies possible in sensitive patients (nickel allergy affects 10-15% of women)
- Less natural appearance than all-ceramic, especially in strong light
- Porcelain layer can chip or fracture, exposing the metal underneath
All-Ceramic / Porcelain
$650 - $1,100/unit
1.3x PFM baseline
All-ceramic bridges are made entirely of dental porcelain or lithium disilicate (e.g., IPS e.max), with no metal substructure. They offer the most natural appearance because the porcelain is translucent and mimics the way light passes through natural tooth enamel. This makes all-ceramic the gold standard for front teeth where aesthetics are paramount.
Aesthetics
Excellent
Strength
Medium (flexural strength ~300-400 MPa)
Lifespan
10-15 years
Best For
Front teeth (incisors, canines) where the bridge is visible when smiling. Patients who prioritise a natural look and are willing to pay the premium over PFM.
Advantages
- Best aesthetics of any material, translucent and natural-looking
- No dark metal line at gum margin, even if gums recede
- Biocompatible, no risk of metal allergies
- Colour-matched precisely to surrounding natural teeth
Limitations
- Less strong than zirconia or PFM, higher fracture risk on molars
- More expensive than PFM at 1.3x cost
- Not recommended for long-span bridges (4+ units) due to fracture risk
- Lab fabrication requires more skill, limiting provider options in some areas
Zirconia
$700 - $1,200/unit
1.4x PFM baseline
Zirconia (zirconium dioxide) bridges are computer-designed and milled from a solid block of zirconia ceramic using CAD/CAM technology. Zirconia is the strongest non-metal dental material available, with flexural strength 3 to 4 times higher than all-ceramic porcelain. Newer multi-layered zirconia achieves better translucency than earlier generations while maintaining strength. Zirconia is rapidly becoming the preferred material for both front and back teeth.
Aesthetics
Very Good
Strength
Highest (flexural strength ~900-1,200 MPa)
Lifespan
15-20 years
Best For
Back teeth (molars) where strength is critical, and increasingly for front teeth with newer translucent zirconia formulations. Best long-term value for patients who can afford the premium.
Advantages
- Strongest non-metal material, virtually fracture-proof in normal use
- Excellent biocompatibility, no metal allergies
- Computer-milled for precise fit, reducing adjustment time at placement
- Longest potential lifespan among tooth-supported bridge materials (15-20 years)
Limitations
- Slightly more opaque than all-ceramic, though newer multi-layer zirconia is improving
- Highest cost at 1.4x PFM baseline
- Can cause excessive wear on opposing natural teeth if not properly polished
- Difficult to adjust chairside compared to other materials
Gold Alloy
$600 - $1,020/unit
1.2x PFM baseline
Gold alloy bridges have the longest clinical track record of any dental material. Gold is gentle on opposing teeth (it wears at a similar rate to natural enamel), provides an excellent marginal fit, and resists corrosion indefinitely. Gold bridges are rarely placed today for visible teeth because of their colour, but they remain an excellent choice for back molars where aesthetics do not matter.
Aesthetics
Poor (gold-coloured)
Strength
High (excellent mechanical properties)
Lifespan
15-20+ years
Best For
Back molars in patients who prioritise function over aesthetics. Particularly good for patients who grind their teeth, as gold absorbs bite forces rather than transmitting them to opposing teeth.
Advantages
- Gentlest on opposing teeth, causes minimal wear
- Best marginal fit of any material, reducing the risk of decay at the crown edge
- Extremely durable with the longest clinical track record
- Biocompatible, no allergies in the vast majority of patients
Limitations
- Gold colour is not aesthetically acceptable for most patients
- Fluctuating gold prices can affect cost
- Increasingly rare, some labs and dentists no longer work with gold
- Patients may feel self-conscious about visible gold restorations
Material Selection Decision Framework
Front upper teeth (visible when smiling)
All-Ceramic or ZirconiaThese teeth are the most visible. All-ceramic provides the best translucency and natural appearance. Newer multi-layered zirconia is nearly as aesthetic and much stronger. Budget option: PFM, but risk of dark line at gum margin.
Front lower teeth
Zirconia or All-CeramicLess visible than upper front teeth but still important for aesthetics. Zirconia offers a good balance of strength and appearance. All-ceramic is excellent if budget allows.
Premolars (side teeth)
Zirconia or PFMModerate bite forces, partially visible. Zirconia is ideal for its strength and acceptable aesthetics. PFM is the budget choice and performs well here.
Molars (back teeth)
Zirconia or PFMHighest bite forces (150-200 lbs). Strength is the priority. Zirconia is the strongest non-metal option. PFM is proven and affordable. Gold is excellent for patients who grind their teeth.
Budget is the primary concern
PFMPFM is the baseline material at the lowest cost. It provides reliable strength and acceptable aesthetics for any position. Insurance coverage is best for PFM since it is the standard.