Dental crowns are necessary when a tooth is significantly weakened, damaged, or aesthetically compromised, and other restorative treatments such as fillings or onlays are insufficient to restore its function and appearance. Here are the most common situations where a crown is required:
1. Extensive Tooth Decay
When a cavity is too large for a filling to restore the tooth’s structure, a crown is often used. Crowns provide full coverage and prevent further decay or structural failure.
2. After Root Canal Therapy
Root canal-treated teeth often become brittle and more susceptible to fractures. A crown is typically placed to reinforce and protect the tooth from breaking under biting pressure.
3. Cracked or Broken Teeth
Teeth that are fractured or broken, particularly those with cracks extending vertically, benefit from crowns to hold the tooth together and restore function.
4. Large Fillings
If a tooth has a large filling with minimal remaining natural structure, it can become weak. A crown helps cover and support the remaining tooth material, preserving integrity.
5. Worn Teeth
Teeth that are excessively worn down from grinding (bruxism), acid erosion, or other factors often require crowns to restore height, function, and appearance.
6. Cosmetic Improvements
Crowns can correct discoloration, shape issues, or misalignment when other cosmetic procedures like veneers or bonding aren’t viable, especially on heavily restored or damaged teeth.
7. Dental Bridges
Crowns serve as anchors (abutments) on either side of a dental bridge, supporting the prosthetic tooth that fills the gap of a missing tooth.
8. Dental Implants
Crowns are used to cap dental implants, forming the visible part of the tooth replacement after the implant integrates with the bone.
9. Tooth Sensitivity
In some cases, severely sensitive teeth caused by enamel loss or receding gums may be covered with a crown to protect exposed dentin and reduce discomfort.
10. To Support a Weak Tooth
Any tooth at risk of breaking due to a history of trauma, heavy bite pressure, or weakened structure may need a crown as a preventative measure.
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