When Is a Dental Crown Recommended?

What a crown does

A crown is a custom restoration that covers the visible portion of a tooth. Unlike a filling, which sits inside a prepared cavity and relies on surrounding walls for support, a crown wraps around the tooth and holds it together against chewing forces.

That distinction — filling in, crown around — explains most crown recommendations.

Common reasons

A crown is typically considered in the following situations.

• A large cavity or old restoration has left thin, unsupported walls
• A cusp has fractured, or a crack is present in a load-bearing tooth
• The tooth has had root canal treatment, particularly a back tooth
• Significant wear has shortened the tooth or altered the bite
• A tooth is being used to support a bridge
• A dental implant requires a restoration

Materials

Contemporary crowns are usually all-ceramic — zirconia for strength in the back of the mouth, or lithium disilicate and layered porcelains where appearance matters most. Metal and porcelain-fused-to-metal crowns remain in use for specific situations.

The choice balances strength, appearance, how much tooth must be removed, and the opposing teeth. It is a legitimate thing to ask about, since it affects both look and preparation depth.

What the appointments involve

In a conventional approach the tooth is prepared under local anaesthetic, an impression or digital scan is taken, a temporary crown is fitted, and the final crown is cemented at a second visit. Practices with in-house milling may complete this in a single appointment.

Mild sensitivity for a period afterwards is common. Ongoing pain on biting, or discomfort that worsens rather than settles, should be reported.

Caring for a crowned tooth

The crown itself cannot decay, but the natural tooth beneath and the margin where they meet can. Crowned teeth need the same brushing and interdental cleaning as any other, and a nightguard if grinding has been identified. See also: how to care for dental crowns.