Disadvantages of Dental Crowns I Should Know About

Dental crowns have significant disadvantages that most clinics do not discuss upfront: they require permanent, irreversible removal of 63–72% of the natural tooth structure, cost €300–€2,500 per tooth depending on material and country, carry a 5–15% failure rate within 10 years, and commonly cause post-procedure sensitivity lasting weeks to months. Understanding these drawbacks before committing is essential to making the right decision for your long-term dental health.

• Dental crowns permanently destroy healthy tooth structure — a process that cannot be undone, regardless of the crown's future condition.
• Crowns fail at a rate of 5–15% within 10 years, meaning most patients will need replacement at additional cost.
• Wupdoc connects you with verified dental clinics across Europe and Turkey, where you can receive honest consultations and compare crown options with transparent pricing.

What Are the Main Disadvantages of Dental Crowns?

The most significant disadvantage of a dental crown is irreversible tooth reduction. To place a crown, the dentist permanently files down the natural tooth by 1–2 mm on all sides, removing 63–72% of healthy enamel and dentin. Once removed, this structure cannot grow back. Every crown that is replaced in the future requires the same prepared tooth as the base, meaning the tooth is permanently committed to always needing a crown from that point forward.

How Much Natural Tooth Do You Lose With a Crown?

This level of tooth destruction is clinically necessary to seat the crown, but it is a one-way procedure. If the crown later fails, chips, or causes problems, the underlying prepared tooth is irreversibly compromised.

What Are All the Disadvantages of Dental Crowns?

1. Irreversible Tooth Damage

Placing a crown requires grinding down the healthy tooth permanently. Even if you later regret the crown or it causes problems, you cannot return to your natural tooth. This is the single most important disadvantage that most patients are not clearly informed about.

2. High Cost — and It Repeats

Crowns are not lifetime devices. The average lifespan is 10–15 years, meaning most patients pay for the same tooth multiple times.

A patient who needs 6 crowns in the UK and replaces them once over a lifetime could pay €9,600–€19,200 for the same teeth.

3. Sensitivity After the Procedure

Post-crown sensitivity is extremely common. Studies report that 30–40% of crowned teeth experience some degree of thermal sensitivity (to hot and cold) in the weeks following placement. In approximately 5–10% of cases, sensitivity becomes chronic or escalates to irreversible pulpitis requiring root canal treatment.

4. Risk of Root Canal Becoming Necessary

The tooth preparation process, combined with the new crown's pressure on the pulp, increases the long-term risk of pulp death. Research published in the Journal of Dentistry found that 19% of crowned teeth required root canal treatment within 10 years — compared to less than 3% of uncrowned teeth in the same study period.

5. Crown Failure and Re-Treatment

Crowns fail. Common failure modes include:

6. Gum Irritation and Recession

Crown margins — the edge where the crown meets the gum — can irritate surrounding gum tissue, especially if the margin is placed below the gumline (subgingival placement). This contributes to localized gum recession, chronic inflammation, and in some cases, bone loss around the tooth.

7. Bite Changes and Jaw Problems

A crown that is even slightly too high (over-contoured) alters your bite. This can cause jaw muscle fatigue, TMJ discomfort, or headaches. Adjustment visits are often required post-placement.

8. Aesthetic Limitations

Not all crowns look natural under all lighting conditions. Porcelain-fused-to-metal (PFM) crowns show a dark grey line at the gum margin as gums recede over time. All-ceramic (zirconia or e.max) crowns avoid this but cost significantly more.

9. Allergic or Sensitivity Reactions (Metal Crowns)

Metal-based crowns contain nickel, cobalt, or other alloys. Approximately 1–3% of the population has documented metal allergies that can cause gum inflammation, oral mucosal reactions, or systemic responses. Full zirconia crowns eliminate this risk.

10. Not Suitable for All Teeth

Crowns are inappropriate when:

• The remaining tooth structure is insufficient to support a crown (<50% of tooth remaining)
• Active periodontal (gum) disease is untreated
• Bruxism (teeth grinding) is severe and unmanaged — crowns fracture under heavy grinding forces

Dental Crown vs. Alternative Treatments: When Is a Crown Actually Necessary?

Dental crowns are frequently over-prescribed for cosmetic purposes or minor damage where less invasive alternatives exist. Always ask your dentist whether an inlay, onlay, or composite restoration could achieve the same outcome with less tooth destruction.

Dental Crown vs. Dental Veneer: What Is the Difference?

If your tooth is structurally healthy and your goal is cosmetic, a veneer removes far less tooth structure than a crown.

Dental crowns are a necessary and effective solution for severely damaged, cracked, or post-root-canal teeth — but they come with real disadvantages that deserve careful consideration. They permanently remove 63–72% of natural tooth structure, cost €150–€2,500 per tooth depending on material and location, carry a 5–15% failure rate within 10 years, and increase the long-term risk of root canal treatment by up to 19%. In many cases, less invasive options — inlays, onlays, or composite restorations — can achieve comparable outcomes with far less destruction of healthy tooth tissue. Wupdoc connects you with verified dental specialists across Europe and Turkey who will give you an honest assessment of whether a crown is truly your best option.