When it comes to restorative dentistry, the term fixed prosthesis refers to a non-removable dental appliance that is permanently attached to existing teeth or dental implants. These prostheses help restore function, aesthetics, and oral health by replacing missing or damaged teeth.
This article will cover examples of fixed prostheses, their types, benefits, costs, and comparison with removable options.
What is a Fixed Prosthesis?
A fixed prosthesis is a dental restoration that is permanently cemented or screwed into place and cannot be removed by the patient. Unlike removable dentures, which can be taken out for cleaning, fixed prostheses provide long-term stability and function, closely resembling natural teeth.
Fixed prostheses are used in cases where:
- Teeth are missing or severely damaged
- A strong and stable tooth replacement is needed
- The patient prefers a permanent solution instead of removable dentures
Examples of Fixed Prostheses
Several types of fixed prostheses are available depending on the patient’s needs and dental condition. Below are the most common examples:
1. Dental Crowns
A dental crown is a tooth-shaped cap placed over a damaged or decayed tooth to restore its strength, shape, and appearance. Crowns can be made from:
- Porcelain (most aesthetic)
- Metal (highly durable)
- Porcelain-fused-to-metal (PFM) (balance of aesthetics and strength)
✅ When is it used?
- To protect a weakened or fractured tooth
- To cover a root canal-treated tooth
- To restore a large filling that compromises the tooth structure
2. Dental Bridges
A dental bridge is a fixed restoration that replaces one or more missing teeth by anchoring to adjacent teeth or implants. It consists of:
- Pontic (false tooth) – replaces the missing tooth
- Abutment teeth – the supporting natural teeth or implants
✅ When is it used?
- When one or more teeth are missing in a row
- When implants are not an option due to cost or health reasons
3. Dental Implants with Crowns
A dental implant is a titanium post surgically placed into the jawbone to act as an artificial tooth root. A crown is then attached to restore the missing tooth.
✅ When is it used?
- To replace a single missing tooth
- As part of an implant-supported bridge or denture
4. Implant-Supported Bridges
Similar to traditional bridges, implant-supported bridges use dental implants instead of natural teeth for support.
✅ When is it used?
- When multiple teeth are missing
- When natural teeth are too weak to support a bridge
5. Implant-Supported Dentures (Hybrid Dentures)
Unlike removable dentures, implant-supported dentures are permanently fixed using dental implants. They are also known as All-on-4 or All-on-6 dentures, depending on the number of implants used.
✅ When is it used?
- For full-mouth restoration
- For patients who want a more stable alternative to traditional dentures
6. Inlays and Onlays (Partial Crowns)
These are custom restorations used to repair damaged or decayed teeth when a filling is not enough, but a full crown is not required.
✅ When is it used?
- To restore moderate tooth decay
- As an alternative to traditional fillings
Fixed Prosthesis vs. Removable Prosthesis
| Feature | Fixed Prosthesis | Removable Prosthesis |
|---|---|---|
| Permanence | Permanent (cemented or screwed) | Can be taken out |
| Stability | Very stable | Less stable |
| Aesthetics | Looks like natural teeth | Can look less natural |
| Comfort | Feels like real teeth | Can cause discomfort |
| Maintenance | Brushing & flossing like normal teeth | Requires special cleaning |
| Cost | More expensive | More affordable |
Benefits of Fixed Prostheses
✅ Long-lasting solution – With proper care, crowns and implants can last 10-20+ years
✅ More natural feel – Fixed prostheses mimic natural teeth in function and aesthetics
✅ No slipping or movement – Unlike dentures, they remain in place
✅ Improved chewing ability – Allows normal eating without dietary restrictions
✅ Prevents bone loss – Implants help maintain jawbone structure
How Much Do Fixed Prostheses Cost?
The cost varies depending on the type of prosthesis, material, and complexity of the procedure. Below is a general price range in the USA:
| Fixed Prosthesis Type | Cost (Per Tooth) |
|---|---|
| Dental Crown | $800 – $3,000 |
| Dental Bridge (per unit) | $1,500 – $5,000 |
| Dental Implant (with crown) | $3,000 – $7,000 |
| Implant-Supported Bridge | $5,000 – $15,000 |
| Implant-Supported Dentures | $15,000 – $30,000 |
🔹 Dental insurance may cover part of the cost, especially for crowns and bridges. However, implants are often considered a cosmetic procedure, meaning coverage is limited.
Caring for a Fixed Prosthesis
To extend the lifespan of a fixed prosthesis, follow these care tips:
- Brush and floss daily to prevent plaque buildup
- Use a non-abrasive toothpaste for porcelain restorations
- Avoid hard foods that can damage crowns or bridges
- Visit the dentist regularly for check-ups and professional cleanings
Conclusion
A fixed prosthesis provides a permanent, stable, and natural-looking solution for missing or damaged teeth. Examples include crowns, bridges, dental implants, and implant-supported dentures, each serving different needs.
If you’re considering a fixed dental restoration, consult your dentist or prosthodontist to determine the best option based on your oral health and budget.
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15 Detailed FAQs on “Which of the Following is an Example of a Fixed Prosthesis?”
1. What is a fixed prosthesis in dentistry?
A fixed prosthesis is a non-removable dental restoration used to replace missing teeth or restore damaged teeth. It is permanently attached to natural teeth, dental implants, or prosthetic abutments. Examples include crowns, bridges, and implant-supported restorations.
2. What are the different types of fixed prostheses?
The main types of fixed prostheses include:
- Dental Crowns (covers a damaged tooth)
- Dental Bridges (replaces one or more missing teeth)
- Implant-Supported Crowns (single-tooth implants)
- Implant-Supported Bridges (multiple missing teeth)
- Implant-Supported Dentures (fixed full-mouth restorations)
- Inlays and Onlays (partial restorations for damaged teeth)
3. How is a fixed prosthesis different from a removable prosthesis?
A fixed prosthesis is permanently attached and cannot be removed by the patient, while a removable prosthesis, such as dentures, can be taken out for cleaning and maintenance. Fixed prostheses provide better stability, function, and aesthetics.
4. Which is an example of a fixed prosthesis: a crown or a denture?
A crown is an example of a fixed prosthesis, as it is cemented onto a tooth or implant. A denture is typically removable unless it is an implant-supported denture, which can be fixed in place.
5. How long do fixed prostheses last?
The lifespan of a fixed prosthesis depends on the type, materials, and oral hygiene.
- Dental crowns: 10-15 years
- Dental bridges: 10-15 years
- Dental implants: 20+ years (with proper care)
- Implant-supported dentures: 15-20 years
6. Are fixed prostheses covered by insurance?
Many dental insurance plans cover crowns and bridges, but implants and implant-supported restorations may have limited or no coverage. It’s best to check with your insurance provider for specific details.
7. What materials are used for fixed prostheses?
Fixed prostheses can be made from:
- Porcelain (best aesthetics)
- Metal alloys (high durability)
- Porcelain-fused-to-metal (PFM) (balance of strength and aesthetics)
- Zirconia (strong and natural-looking)
8. Can a fixed prosthesis be replaced?
Yes, a fixed prosthesis can be replaced if it becomes damaged, worn out, or loose. A dentist can remove and replace crowns, bridges, or implants with a new restoration.
9. Do fixed prostheses feel like natural teeth?
Yes, fixed prostheses are designed to mimic natural teeth in function and appearance. Dental implants, in particular, provide the closest feel to real teeth since they integrate with the jawbone.
10. What is the process of getting a fixed prosthesis?
The process typically involves:
- Initial consultation and X-rays
- Tooth preparation (for crowns/bridges) or implant placement
- Impressions and temporary prosthesis placement
- Final prosthesis fabrication and cementation
11. Can a fixed prosthesis break?
Yes, although fixed prostheses are durable, they can break due to:
- Biting on hard foods (e.g., ice, nuts)
- Teeth grinding (bruxism)
- Trauma or accidents
12. How do I take care of my fixed prosthesis?
To maintain your fixed prosthesis:
- Brush and floss daily
- Use non-abrasive toothpaste
- Avoid hard/sticky foods
- Visit the dentist regularly
13. Can I eat normally with a fixed prosthesis?
Yes, a fixed prosthesis allows for normal chewing and eating. However, it’s best to avoid hard, sticky, or extremely hot foods immediately after placement.
14. What happens if a fixed prosthesis becomes loose?
If a fixed prosthesis becomes loose, it may need re-cementing, repair, or replacement. Contact your dentist as soon as possible to prevent further damage.
15. Is a fixed prosthesis worth the cost?
Yes, while fixed prostheses are more expensive than removable options, they offer long-term durability, better function, and a natural appearance, making them a worthwhile investment for dental health.
Dr. Niraj Ghanghoriya is a passionate dental surgeon with over 12 years of experience in clinical dentistry. He completed his BDS from the prestigious Sri Aurobindo Institute of Dentistry in 2012 and specializes in painless root canals, smile makeovers, and preventive oral care. Known for his patient-first approach and clear communication, Dr. Ghanghoriya aims to make dental knowledge accessible to everyone. When he’s not in the clinic, he enjoys writing informative dental blogs to help people take better care of their oral health.
