A dental crown is essentially a custom-made cap that fits over a damaged tooth, restoring its shape, strength, and function. It's one of the most common restorative procedures in dentistry, and also one of the most misunderstood, plenty of patients aren't sure why a filling won't do the job instead.
When a Crown Is the Right Call
- A tooth is cracked or fractured badly enough that a filling wouldn't hold up under normal chewing force
- Decay is too extensive for a filling to restore the tooth without weakening it further
- A tooth has had a root canal, which leaves it more brittle and prone to fracture without reinforcement
- A large existing filling is failing and needs more structural support than a replacement filling could offer
- Purely cosmetic cases, like reshaping a badly discolored or misshapen tooth
The Difference Between a Filling and a Crown
Think of it as a matter of how much healthy tooth structure is left. A filling fills in a cavity or small area of damage while leaving most of the natural tooth intact. A crown covers the entire visible portion of the tooth, essentially becoming the new outer surface. When there isn't enough healthy tooth left to support a filling, or the tooth needs extra reinforcement to survive normal biting force, a crown is the more durable, appropriate fix.
Types of Crowns
Modern crowns are typically made from all-ceramic or porcelain materials that closely match the natural color and translucency of teeth, a major upgrade from older metal or metal-and-porcelain crowns. All-ceramic crowns are the most common choice today for both front and back teeth, offering a strong, natural-looking result. Your dentist will recommend the specific material based on the tooth's location and the amount of chewing force it needs to withstand.
What to Expect During Treatment
The tooth is numbed, then reshaped to make room for the crown to fit over it properly. From there, either a digital scan or physical impression captures the exact shape needed. Many practices now offer same-day crowns milled right in the office, while others send the case to an outside lab, which typically means wearing a temporary crown for a week or two until the permanent one is ready and bonded into place.