Dental crown vs. filling — what's the difference?
Both fillings and crowns repair damaged teeth, but they're used in different situations depending on how much of the tooth structure remains.
What is a filling?
A filling repairs a small to moderate area of decay or damage. The dentist removes the affected area and fills the space with a tooth-colored composite material, restoring the tooth's shape and function.
What is a crown?
A crown is a custom-made cap that covers the entire visible portion of a tooth. It's used when too much of the natural tooth structure has been lost or weakened for a filling to provide adequate support.
How does a dentist decide which one to use?
The decision generally comes down to how much healthy tooth structure remains. If most of the tooth is intact, a filling is usually sufficient. If the tooth is heavily broken down, cracked, or has had a root canal, a crown often provides better long-term protection against fracture.
Durability considerations
Fillings are quick and cost-effective for smaller repairs but may not withstand heavy biting forces on a badly damaged tooth. Crowns cover and reinforce the whole tooth, which can offer better protection when a large portion of the tooth is compromised.
What's the process like for each?
A filling is usually completed in a single visit. A crown typically requires two visits: one to prepare the tooth and take an impression (with a temporary crown fitted), and a second to fit the final custom-made crown.
Not sure which you need?
An assessment can quickly tell you whether a filling or a crown is the right fit for your tooth.
This article provides general information and does not constitute individualized medical advice. Always consult your dentist about your specific situation.