D6634 Dental Code: Bridge Pontics, Materials, and Clinical Considerations

The D6634 dental code is a specific billing code used in dentistry to describe the fabrication and placement of a bridge pontic—a false tooth that replaces a missing tooth in a fixed dental bridge. Unlike removable partial dentures, a pontic is permanently cemented to adjacent abutment teeth or dental implants, providing a stable and aesthetically pleasing solution for tooth loss.

This code is crucial for dental professionals when documenting procedures for insurance claims, ensuring accurate billing and reimbursement. Understanding D6634 requires an in-depth look at pontic types, materials, clinical techniques, and patient-specific considerations.

Why is D6634 Important?

• Ensures standardized billing for pontic fabrication.

• Helps in treatment planning for missing teeth.

• Guides dentists in selecting the best materials and designs.

2. Understanding Bridge Pontics: Definition and Function

A pontic is an artificial tooth that fills the gap left by a missing tooth in a dental bridge. Unlike implants, which are anchored into the jawbone, pontics rely on adjacent teeth (abutments) for support.

Key Functions of a Pontic:

• Restores Chewing Function: Replaces missing teeth to improve mastication.

• Maintains Aesthetics: Mimics natural teeth in shape, color, and alignment.

• Prevents Teeth Shifting: Stops adjacent teeth from drifting into the gap.

• Preserves Jawbone Structure: Reduces bone resorption by distributing bite forces.

3. Types of Bridge Pontics and Their Applications

Different pontic designs are used based on location, hygiene needs, and aesthetics.

4. Materials Used in Bridge Pontics (D6634)

The choice of material affects durability, aesthetics, and cost.

A. Porcelain Pontics

• Pros: Highly aesthetic, stain-resistant.

• Cons: Brittle, may fracture under high pressure.

B. Zirconia Pontics

• Pros: Extremely strong, biocompatible.

• Cons: Higher cost, requires expert fabrication.

C. Metal-Ceramic Pontics

• Pros: Durable, good aesthetics.

• Cons: Metal may show at gumline.

D. Composite Resin Pontics

• Pros: Affordable, easy to repair.

• Cons: Less durable, prone to staining.

5. Clinical Considerations for D6634 Procedures

A. Patient Assessment

• Evaluate bone density, gum health, and adjacent teeth.

• Consider bite force and occlusion.

B. Pontic Design and Aesthetics

• Match color, shape, and translucency to natural teeth.

• Ensure proper emergence profile for gum health.

C. Hygiene and Maintenance

• Educate patients on flossing under the pontic.

• Recommend antimicrobial rinses to prevent plaque buildup.

6. Step-by-Step Procedure for Placing a Bridge Pontic (D6634)

1. Diagnosis & Treatment Planning (X-rays, impressions).

2. Tooth Preparation (Shaping abutment teeth).

3. Impression Taking (Digital or traditional molds).

4. Temporary Bridge Placement (Protects prepared teeth).

5. Pontic Fabrication (Lab-made or CAD/CAM).

6. Final Cementation (Permanent bonding).

7. Common Challenges and Solutions

8. Comparing D6634 with Other Dental Bridge Codes

• D6210-D6214: Implant-supported bridges.

• D6545: Retainer for resin-bonded bridges.

• D6634 is unique as it specifies pontic fabrication in a conventional bridge.

9. Cost and Insurance Coverage for D6634

• Average Cost: $500-$1,500 per pontic.

• Insurance Coverage: Typically covers 50-80% if medically necessary.

10. FAQs About D6634 Dental Code

Q1: How long does a pontic last?
A: 10-15 years with proper care.

Q2: Can a pontic be repaired?
A: Yes, depending on material damage.

Q3: Does D6634 cover implant-supported pontics?
A: No, implant bridges use different codes (D6058-D6064).

11. Conclusion

The D6634 dental code is essential for billing pontics in fixed bridges. Proper material selection, design, and hygiene are crucial for long-term success. By understanding this code, dentists can optimize treatment plans, while patients benefit from restored function and aesthetics.

12. Additional Resources

• American Dental Association (ADA) Code Manual

• Journal of Prosthetic Dentistry: Pontic Design Studies

• Clinical Guide to Fixed Prosthodontics (Books)