D6980 Dental Code: Fixed Partial Denture Retainer
Fixed partial dentures (FPDs), commonly known as dental bridges, are a cornerstone of restorative dentistry. The D6980 dental code specifically refers to a fixed partial denture retainer—indirect, which is a critical component in bridge fabrication. This code is used when a crown, inlay, or onlay serves as an abutment to support a prosthetic tooth (pontic).
This comprehensive guide will explore the D6980 dental code in detail, covering its applications, materials, procedural steps, insurance considerations, and clinical challenges. Whether you’re a dentist, dental student, or patient seeking in-depth knowledge, this article provides valuable insights.
2. Understanding the D6980 Dental Code
Definition and Purpose
The D6980 code is used to bill for an indirect retainer in a fixed partial denture. Unlike a traditional crown (D2750), this retainer is part of a multi-unit restoration, anchoring the bridge to adjacent teeth.
When Is D6980 Used?
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Replacing one or more missing teeth
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When implants are not viable
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For patients with strong adjacent teeth that can support a bridge
3. Types of Fixed Partial Denture Retainers
| Retainer Type | Description | Best For |
|---|---|---|
| Full Crown Retainer | Covers the entire tooth | Molars with heavy bite force |
| Inlay Retainer | Fits within the tooth cusps | Minimal tooth structure loss |
| Onlay Retainer | Covers one or more cusps | Moderate tooth damage |
4. Materials Used in Fixed Partial Denture Retainers
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Porcelain-Fused-to-Metal (PFM): Durable and aesthetic
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Zirconia: High strength, biocompatible
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Gold Alloys: Long-lasting but less aesthetic
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Lithium Disilicate (E-max): Excellent aesthetics, moderate strength
5. Clinical Considerations for D6980 Procedures
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Patient Assessment: Evaluate bone support, occlusion, and periodontal health.
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Tooth Preparation: Must ensure proper reduction for retainer fit.
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Impression Techniques: Digital scans vs. traditional impressions.
6. Step-by-Step Procedure for D6980
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Initial Consultation: Diagnosis and treatment planning.
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Tooth Preparation: Reducing the abutment teeth.
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Temporary Crown Placement: Protects prepared teeth.
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Final Cementation: Permanent retainer and bridge placement.
7. Common Challenges and Solutions
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Poor Fit: Requires remaking the retainer.
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Occlusal Issues: Adjustments needed for proper bite alignment.
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Patient Discomfort: Usually temporary; monitor healing.
8. Cost and Insurance Coverage for D6980
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Average Cost: $800–$1,500 per retainer (varies by material).
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Insurance Coverage: Most plans cover 50–80% of the cost.
9. Comparison with Other Dental Codes
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D6750 (PFM Crown): Single crown, not part of a bridge.
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D6240 (Pontic): The false tooth in the bridge.
10. Case Studies and Real-Life Applications
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Case 1: A 45-year-old patient with a missing molar successfully restored with a zirconia bridge (D6980).
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Case 2: A gold alloy retainer used for a long-span bridge.
11. FAQs
Q1: How long does a D6980 retainer last?
A: Typically 10–15 years with proper care.
Q2: Does D6980 require multiple visits?
A: Yes, usually 2–3 appointments.
Q3: Can D6980 be used with implants?
A: No, implants use different codes (D6057–D6066).
12. Conclusion
The D6980 dental code is essential for fixed partial denture retainers, offering a reliable tooth replacement solution. Proper material selection, precise tooth preparation, and patient education ensure long-term success.
13. Additional Resources
