Dental crowns are a common restorative procedure, but they come with potential drawbacks. This in-depth guide explores the hidden downsides of dental crowns, helping you make an informed decision about your oral health.
Understanding Dental Crowns
Dental crowns are tooth-shaped caps that cover damaged teeth from the gum line up. Before delving into their disadvantages, let’s briefly explore what dental crowns are and when they’re typically used.
Common Reasons for Dental Crowns:
- Severely decayed teeth
- Cracked or fractured teeth
- Teeth that have undergone root canal treatment
- Cosmetic enhancement of misshapen or discolored teeth
Types of Dental Crowns
Different materials offer varying benefits and drawbacks. Here’s a comparison of common crown types:
| Material | Pros | Cons |
|---|---|---|
| Porcelain | Natural appearance, suitable for visible teeth | More prone to chipping, may wear opposing teeth |
| Metal (Gold/Silver) | Extremely durable, minimal tooth reduction needed | Visible metallic color |
| Porcelain-fused-to-metal | Combines strength and aesthetics | Can show dark line at gum edge |
| Zirconia | Strong, natural-looking, biocompatible | Difficult to adjust, may wear opposing teeth |
Key Disadvantages of Dental Crowns
1. Irreversible Tooth Alteration
The process of preparing a tooth for a crown is permanent and involves significant enamel removal.
- Impact: Once altered, the tooth will always require protection.
- Consideration: Natural tooth structure cannot be restored after crown preparation.
Dr. Emily Chen, prosthodontist, explains: “Think of crown preparation like sculpting – once you remove material, you can’t simply put it back. The tooth will forever need that artificial ‘shield’ for protection.”
2. Sensitivity and Discomfort
Many patients experience temporary or long-term issues after getting a crown:
- Increased sensitivity to hot and cold
- Discomfort when biting or chewing
- Potential pain from nerve irritation
Recent Study: A 2023 survey published in the Journal of Prosthetic Dentistry found that 18% of patients reported post-crown sensitivity lasting more than six months.
3. Risk of Nerve Damage or Infection
The crown preparation process can lead to serious complications:
- Accidental nerve damage during enamel removal
- Increased risk of infection if bacteria enter the tooth
- Potential need for root canal treatment
Expert Insight: Dr. Michael Lee, endodontist, states: “While rare, nerve damage during crown preparation can occur, especially with teeth that have large fillings or previous trauma. Always discuss your tooth’s history with your dentist.”
4. Bite Issues and Jaw Pain
Poorly fitted crowns can cause:
- Misalignment with surrounding teeth
- Uneven bite pressure
- Temporomandibular joint (TMJ) problems
Tip: If you experience persistent jaw pain or difficulty biting after getting a crown, consult your dentist promptly for adjustments.
5. Aesthetic Concerns
While crowns aim to mimic natural teeth, issues can arise:
- Color mismatches with surrounding teeth
- Visible crown margins (where crown meets tooth)
- Difficulty achieving a natural appearance, especially for front teeth
6. Cost and Longevity Considerations
| Factor | Details |
|---|---|
| Initial Cost | $800 – $1,500 per crown (average in the US, 2024) |
| Lifespan | 5-15 years (varies by material and care) |
| Replacement Needs | May require multiple replacements over a lifetime |
| Insurance Coverage | Often limited; may not cover full cost or replacements |
7. Potential for Crown Failure
A 15-year study published in the Journal of Dental Research (2024) found a cumulative failure rate of 28.33% for zirconia crowns, with common issues including:
- Veneer fractures
- Loss of retention
- Secondary decay under the crown
Managing Risks and Complications
To minimize risks associated with dental crowns:
- Choose an experienced, reputable dentist
- Follow all post-procedure care instructions carefully
- Maintain excellent oral hygiene
- Attend regular dental check-ups
- Avoid habits like teeth grinding or chewing on hard objects
Signs of a Failing Crown:
- Persistent pain or sensitivity
- Visible damage or chips
- Looseness or movement of the crown
- Changes in your bite
Action Step: If you notice any of these signs, contact your dentist immediately.
Long-term Care and Maintenance
To prolong the life of your dental crown:
- Brush twice daily with a soft-bristled toothbrush
- Floss daily, paying extra attention to the crown area
- Use an antibacterial mouthwash
- Wear a night guard if you grind your teeth
- Avoid biting on hard foods or objects
Making an Informed Decision
When considering dental crowns, weigh these factors:
- Severity of tooth damage
- Alternative treatment options (e.g., veneers, bonding)
- Long-term oral health goals
- Financial considerations
- Aesthetic preferences
Questions to Ask Your Dentist:
- Is a crown absolutely necessary, or are there alternatives?
- What type of crown material do you recommend for my situation?
- How many crown procedures have you performed?
- What steps can I take to minimize potential complications?
Conclusion
While dental crowns offer significant benefits for damaged teeth, it’s crucial to understand their potential drawbacks. By being aware of these disadvantages and taking proactive steps in your dental care, you can make an informed decision and work closely with your dentist to ensure the best possible outcome.
Remember: Good oral hygiene and regular dental check-ups are essential for maintaining the health and longevity of your natural teeth and any dental restorations.
The average lifespan of a dental crown varies depending on the material used. Metal crowns can last 20-30 years, while porcelain or ceramic crowns typically last 10-15 years. The longevity also depends on oral hygiene and lifestyle factors.
Yes, some patients may experience increased tooth sensitivity after getting a crown, especially if the crown is not properly fitted, leaving part of the tooth or dentin exposed.
The process of fitting a crown involves reshaping the natural tooth, which can weaken it and expose sensitive dentin. Additionally, an improperly fitted crown can cause discomfort and bite misalignment.
The cost of a dental crown varies based on the material (e.g., gold, porcelain, ceramic) and the location of the dental practice. Additional costs may include preparatory dental work and long-term maintenance.
If your dental crown feels uncomfortable or causes bite issues, it’s important to consult your dentist immediately. An improperly fitted crown needs adjustment to prevent further oral health complications.
