PFM Crown with Metal Lingual
PFM Crown with Metal Lingual: The Ultimate Guide for Dental Professionals
What is a PFM Crown with Metal Lingual?
A PFM Crown with Metal Lingual is a special tooth cap. It has porcelain on the front. It has metal on the back (lingual side). This mix gives both good looks and strength.
Dental pros pick this crown type when patients need:
- Strong back teeth
- Nice looking teeth
- Long-lasting teeth
- Cost-effective fixes
Key Benefits for Your Practice
- Strong and Pretty: The metal back gives strength. The porcelain front looks nice.
- Saves Tooth: Needs less drilling than full metal crowns.
- Fits Well: Metal edges can be made very thin (40-60μm).
- Lasts Long: The metal lingual part stands up to chewing forces.
- Works Well: Good for deep bites or tight spaces.
Technical Specs You Need to Know
| Feature | Details | Clinical Benefit |
|---|---|---|
| Metal Base | Co-Cr alloy (ASTM F75) or Au-Pd alloy | Stands up to biting forces, passes ISO 22674 tests |
| Porcelain Layer | 0.8-1.2mm thick, VITA color match | Looks like real teeth, no gray lines at gums |
| Edge Precision | 40-60μm tight fit | Less cement, fewer problems later |
| Production Time | Standard: 2-3 days | Fits your busy schedule |
| Strength Test | 30+ MPa bond strength | Won’t chip or break easily |
When to Choose PFM with Metal Lingual
These crowns work best for:
- Back teeth that need to handle lots of chewing
- Deep bite cases where space is tight
- Patients who grind their teeth at night
- Cost-conscious cases that still need good looks
- Long bridges that need extra strength
Our PFM Crown Posterior option works great with this design for back teeth cases.
Metal Options Explained
We offer two metal choices:
Standard: Co-Cr Alloy
- 67% less expensive
- Very strong (500+ MPa)
- Resists tarnish and corrosion
- Works for most patients
Premium: Au-Pd Alloy
- Better for patients with metal worries
- Easier to adjust chairside
- Softer on opposing teeth
- Gold color won’t show through thin gums
For patients who need maximum strength, our Metal Collar PFM Crown provides even more support.
Step-by-Step Technical Guide
1. Preparation Guidelines
For best results:
- Cut 1.5mm from the biting surface
- Remove 1.0mm from the sides
- Make a small shoulder (0.5mm) at the gum line
- Round all sharp edges
2. Digital Design Process
Our lab uses:
- 3D scanning of your models
- Virtual waxup to check fit
- Digital try-in to verify space
- CAD milling for perfect metal base
3. Porcelain Application
We build up porcelain in layers:
- Opaque layer to hide metal
- Dentin layer for basic shade
- Enamel layer for natural look
- Custom staining to match other teeth
4. Quality Testing
Each crown goes through:
- Thermal cycling (5-55°C, 3000 cycles)
- Pressure testing (120+ MPa)
- Margin checks under 10x zoom
- Color matching in natural light
Comparison with Other Options
| Crown Type | Strength | Looks | Price | Best For |
|---|---|---|---|---|
| PFM with Metal Lingual | ★★★★★ | ★★★★☆ | $$$ | Back teeth, grinders |
| Full Zirconia | ★★★★★ | ★★★☆☆ | $$$$ | Heavy grinders |
| Emax | ★★★☆☆ | ★★★★★ | $$$$ | Front teeth |
| Full Metal | ★★★★★ | ★☆☆☆☆ | $$ | Non-visible areas |
If you need more esthetic options for front teeth, check our Front Tooth Porcelain Fused to Metal Crown solutions.
Case Selection Tips
Good cases for PFM with Metal Lingual:
- Molars and premolars
- Limited interocclusal space
- Patients with parafunctional habits
- Budget-conscious treatments
- Long-span bridges
May want to consider alternatives for:
- Very visible front teeth
- Patients with metal allergies
- Ultra-thin preps (<0.8mm)
- Patients who want metal-free options
For special cases with limited space, our PFM Crown Metal Occlusal might be a better fit.
Technical FAQs
Q: What’s the minimum thickness needed?
A: We need 0.3mm for metal and 0.8mm for porcelain areas.
Q: How long do these crowns last?
A: Clinical studies show 92% survival rate at 10 years when properly placed.
Q: Can you match difficult shades?
A: Yes! We use VITA 3D-Master system plus custom staining for tough matches.
Q: What about metal allergies?
A: Our standard alloy is hypoallergenic. For sensitive patients, we recommend our gold-palladium option.
Q: How do you prevent the gray line at margins?
A: We use special edge techniques and porcelain shoulder designs to eliminate metal show-through.
Ordering Information
What to Send Us:
- Full arch impressions or digital scans
- Bite registration
- Shade information (VITA classic or 3D)
- Prep photos (when possible)
- Special instructions for contour
Turnaround Times:
- Standard: 7 days
Warranty:
All our PFM crowns with metal lingual come with a 5-year warranty against porcelain fracture and metal failure under normal use.
Summary: Why Choose Our PFM Crowns with Metal Lingual
- Perfect balance of strength and esthetics
- Lab-tested to meet ISO standards
- Clinically proven with 10+ year success rates
- Cost-effective solution for your practice
- Expert technical support from our dental team
Ready to place an order or have questions? Contact our technical team for personalized support.
