Restorative Dentistry
Dental Fillings
Catching a cavity early and placing a quality filling is one of the simplest ways to keep a small problem from becoming a big one.
Reviewed by Dr. Sang Kim, DMD — Updated April 2026
When you need a filling
A filling is needed when tooth decay has created a cavity — a small hole in the enamel that will continue to grow if left untreated. You might notice sensitivity to hot or cold, a mild toothache, or a visible dark spot on your tooth. Sometimes cavities develop without any symptoms at all, which is why regular exams and X-rays at Bridgewater Dental Center are so important. Dr. Sang Kim and our team catch decay early for families throughout Bridgewater, Harrisonburg, and Rockingham County, so treatment stays straightforward and comfortable.
Composite vs. amalgam fillings
Our Bridgewater office offers two proven filling materials, and Dr. Kim will recommend the one that makes the most sense for your specific situation.
- Composite (tooth-colored) fillings — Made from a blend of resin and fine glass particles, composite fillings are color-matched to your natural teeth. They bond directly to the tooth structure, which means less healthy enamel needs to be removed during preparation. Composite is the preferred choice for visible teeth and small to mid-sized cavities.
- Amalgam (silver) fillings — A durable, time-tested material that holds up exceptionally well under heavy chewing pressure. Amalgam can be a practical choice for large cavities on back teeth where strength is the top priority and appearance is less of a concern.
Same-day treatment
Most fillings are completed in a single visit. After gently numbing the area, Dr. Kim removes the decayed portion of the tooth, cleans the cavity, and places the filling material in layers. Each layer is shaped and hardened before the next is applied, ensuring a tight seal and a natural bite. The entire appointment typically takes thirty to sixty minutes, and patients can return to their normal routine right away. Sedation options are available for anyone who feels anxious about dental work.
Protecting your filling long-term
Good brushing and flossing habits, combined with regular checkups, help fillings last for years. Over time, older fillings can wear down or develop small cracks. If Dr. Kim spots an issue during your exam, he'll discuss whether the filling can be repaired or whether a dental crown is a better long-term solution.
Think you might have a cavity? Call Bridgewater Dental Center at 540-443-2659 to schedule an appointment, or visit our restorative dentistry page to learn about all the ways we rebuild and protect your smile.
Frequently Asked Questions
How do I know if I need a filling?+
You might notice tooth sensitivity, a mild ache, or a visible dark spot — but many cavities develop without any symptoms at all. That's why regular exams and X-rays at Bridgewater Dental Center are so important for catching decay early.
Are tooth-colored fillings as strong as silver ones?+
Modern composite fillings are very durable and work well for small to mid-sized cavities. For large cavities on back teeth where chewing pressure is heaviest, Dr. Kim may recommend amalgam or a different restoration depending on your situation.
Does getting a filling hurt?+
Dr. Kim numbs the area before starting, so you shouldn't feel pain during the procedure. Most patients describe it as pressure rather than discomfort. Sedation is available at our Bridgewater office for anyone who feels anxious.
How long does a filling appointment take?+
Most fillings are completed in a single visit lasting thirty to sixty minutes. You can return to your normal routine right after the appointment — no downtime required.
How long do dental fillings last?+
Composite fillings typically last five to ten years, and amalgam fillings can last even longer. Good brushing and flossing habits, along with regular checkups, help extend the life of any filling.
Can old fillings be replaced?+
Yes. Over time fillings can wear down, crack, or develop gaps where bacteria can sneak in. If Dr. Kim notices an issue during your exam, he'll discuss whether a new filling or a dental crown is the best next step.
Ready When You Are
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Schedule an appointment online, or give us a call. We're accepting new patients of every age — and we'll walk you through every step.