I Need a Dental Filling; How Long Do They Last?

August 13, 2026

Smile examined with dental mirror

Dental enamel is the hardest substance in the human body, but it can be compromised by injuries, acid erosion, and infections and lacks the ability to heal on its own. Thankfully, tooth-colored fillings can restore lost dental structure and help compromised teeth remain healthy and functional for many years. Here’s a brief guide to how fillings are placed, how long they can last, and how to keep your restoration in great shape for as long as possible.

How Are Dental Fillings Placed?

Traditional fillings are made from amalgam, which is a strong but darkly colored alloy that can be quite conspicuous when the patient smiles or laughs. Modern tooth-colored fillings, on the other hand, are made from composite resin that allows them to mimic the appearance, shade, and texture of natural enamel.

To place a tooth-colored filling, your dentist will begin by administering an appropriate anesthetic to ensure your comfort. When you are ready, they will carefully remove the compromised dental structure and sanitize the treated area. Then, they will rebuild the lost structure by applying composite resin in layers and harden the restoration with a specialized ultraviolet light. After the filling is trimmed and polished, the patient will be ready to go on their way. Post-treatment discomfort should be minimal, and you’ll be provided with detailed aftercare instructions so you can avoid complications.

How Long Do Dental Fillings Last?

Tooth-colored fillings enjoy similar lifespans to traditional amalgam fillings, so they can last for fifteen years or more if they receive excellent care. A few ways to help your restoration stay in great shape are to:

  • Practice excellent oral hygiene by brushing, flossing, and rinsing with antibacterial mouthwash every day.
  • Visit your dentist every six months for routine checkups and cleanings.
  • Chew mindfully to avoid unnecessary dental stress.
  • Wear protective devices such as athletic mouthguards if you play sports or nightguards if you grind your teeth in your sleep.

You should also avoid bad habits like:

  • Consuming too much sugar, acid, or alcohol.
  • Smoking.
  • Using your teeth to open packages or bottles.
  • Chewing on ice or nonfood materials like wood, plastic, metal, glass, or fingernails.

Cavities are destructive oral infections that will not get better without the help of a trained dental professional. Consulting with your dentist can help you understand how to keep your teeth in excellent shape.

About the Practice

Dental Associates of Delaware offers the finest oral healthcare in town. Led by a skilled team of experienced dentists, the staff ensures that each patient enjoys a smooth and effective treatment experience in a calm and welcoming office environment. Areas of expertise include general, cosmetic, emergency, and restorative dentistry such as dental fillings. If you think you may have a cavity or wish to schedule a checkup, please contact our office online.