Dental fillings: what to expect

A cavity is a hole in the tooth caused by decay. Left untreated, it grows deeper and can lead to pain, infection, or the need for a root canal or extraction. A filling removes the decay and restores the tooth's shape and strength, usually in a single visit.

Signs you may need a filling

• Sensitivity to sweets, cold or hot food and drinks
• A dark spot, hole or rough edge on a tooth
• Food often getting stuck in the same place
• Pain when biting

Many cavities cause no symptoms at first, which is why regular check-ups matter.

Tooth-colored (composite) fillings

Composite fillings are made of a tooth-colored resin that is matched to the shade of your teeth, so the repair blends in naturally. Because the material bonds to the tooth, the dentist can often keep more of your natural tooth.

The procedure

• The area is numbed if needed, so you stay comfortable
• The decay is gently removed and the tooth is cleaned
• The filling material is placed in layers and hardened with a special light
• The filling is shaped to your bite and polished

Aftercare

Wait until the numbness wears off before eating, to avoid biting your cheek or tongue. Mild sensitivity for a few days is normal. If your bite feels high or the sensitivity doesn't improve, let us know. A simple adjustment usually fixes it.

This guide is general information to help you prepare for your visit. It isn't a diagnosis. Your dentist will check your teeth and recommend what's right for you.