Cavity Treatment Boston – Fillings, Safety & Longevity Guide

Hi, I’m Dr. Sutera from Aesthetic Smile Reconstruction in Boston. You might think cavities always hurt—but they don’t. That’s why they can sneak up on you. One day your tooth feels fine, and the next, your dentist tells you there’s decay and you need extensive cavity treatment

Let’s walk through what cavities are, what modern filling options look like, and how long you can expect them to last. We’ll also cover safety concerns, including the truth about silver (amalgam) fillings, and how to protect your fillings for the long haul.

Can a cavity go away on its own?

No. Once a cavity forms in your enamel, it won’t heal naturally. Cavities start when plaque—a sticky film of bacteria—breaks down sugars and produces acids. These acids slowly erode the enamel, the hard outer layer of your tooth.

If the damage is caught early, we might be able to stop or reverse decay with fluoride treatments and better home care. But once a hole forms in the enamel and reaches the softer dentin underneath, you’ll need a filling to restore the tooth and prevent further damage.

Left untreated, that small cavity can get deeper, cause pain, or even lead to a root canal. That’s why early detection is key—and why we check carefully at every visit.

What are the signs of a cavity?

Cavities don’t always cause pain, but here are signs to watch for:

• Sensitivity to sweets, cold, or hot drinks
• A visible brown or black spot
• A rough area you can feel with your tongue
• Mild pain when biting down

One patient, Marco, came in for his regular cleaning and was surprised when we spotted a cavity. He hadn’t felt any pain—no cold sensitivity, no visible dark spot. But on X-ray, we saw early decay forming between two molars. We were able to treat it with a small filling, and he left with his tooth preserved and no discomfort. This is why regular checkups matter—you can catch a cavity before it ever starts to hurt.

What are the types of fillings available?

When it comes to fixing a cavity, one size doesn’t fit all. The location of the decay, the size of the cavity, and even your budget and aesthetic preferences all play a role in choosing the right filling material. At Aesthetic Smile Reconstruction, we help patients make informed choices that balance durability, appearance, and safety.

Here are the most common types of fillings:

1. Composite Fillings (Tooth-Colored)

• Made from a resin and fine glass mixture
• Matches your natural tooth color
• Ideal for front teeth or small cavities
• Bonds directly to the tooth
• Mercury-free

2. Amalgam Fillings (Silver)

• Made from metals including silver, tin, copper, and mercury
• Very durable and cost-effective
• Ideal for molars and chewing surfaces
• More noticeable in the mouth

3. Gold Fillings

• Custom-made and long-lasting
• Biocompatible and highly durable
• More expensive and visible
• Less common today

4. Ceramic (Porcelain) Fillings

• Stain-resistant and natural-looking
• Often used for large restorations
• More brittle than other materials but excellent aesthetics

5. Glass Ionomer Fillings

• Releases fluoride over time to protect the tooth
• Great for kids or low-pressure areas
• Less durable and not recommended for large cavities

Are silver fillings safe?

This is one of the most common questions I get. The short answer: Yes—for most people, silver fillings are considered safe.

Here’s what the science says:

• Agencies like the FDA, ADA, and WHO all agree that amalgam is safe for adults and children over age 6.
• The mercury in amalgam is bound within the material. The amount released is very low—less than what we’re exposed to in food or the environment.

That said, pregnant or nursing women and people with mercury allergies may want to consider composite fillings instead.

If you have existing silver fillings and they’re intact, there’s usually no need to replace them unless they’re worn or leaking. We’ll check them at each visit.

How long do fillings last?

The lifespan of your filling depends on the type of material used, your oral hygiene habits, and your bite forces. Some materials, like amalgam or gold, are built to last under pressure. Others, like composite, offer great aesthetics but may wear down faster.

• Amalgam fillings: 10–15 years or more
• Composite fillings: 5–10 years (sometimes longer with newer materials)
• Gold fillings: 15–30 years
• Porcelain: 10–15 years (depending on wear)

Regular brushing, flossing, and avoiding excessive force—like chewing ice—can all help extend the life of your filling.

How can I make my fillings last longer?

If you’ve invested time and care into getting a filling, it’s worth protecting it for the long haul. Good habits can keep your dental work strong and prevent future cavities.

• Brush twice a day with fluoride toothpaste
• Floss daily to remove plaque between teeth
• Avoid chewing ice, pens, or hard candy
• Wear a night guard if you grind your teeth
• Visit your dentist for cleanings and exams every 6 months

Thinking of replacing silver fillings?

We can do that too. Many patients want a more natural look or have concerns about older fillings. We’ll take X-rays to assess the health of the tooth, and if needed, carefully replace the silver with a composite or other restoration.

Replacement is usually done gradually unless medically necessary. We’ll walk you through all your options so you feel confident.

The Connection Between Fillings and Your Overall Health

It’s important to know that untreated cavities don’t just affect your teeth. When decay progresses, it can lead to infections that impact your immune system or even your heart. Studies have linked poor oral health to an increased risk of systemic issues like cardiovascular disease and diabetes. That’s why restoring decayed teeth isn’t just about aesthetics—it’s about your overall wellness.

Do fillings hurt?

Getting a filling is much more comfortable than many people expect. We use gentle numbing techniques and, if needed, dental sedation options to keep you relaxed.

• Small fillings may not even require anesthesia
• The procedure typically takes under an hour
• You may feel mild sensitivity for a few days afterward, but it usually resolves quickly

Can kids get cavities and fillings?

Absolutely—and in fact, cavities are one of the most common childhood diseases. We offer special care for children, including:

• Tooth-colored fillings
• Fluoride treatments
• Sealants to protect back molars
• Gentle, supportive visits to reduce dental anxiety

Early dental care helps set the stage for a lifetime of healthy smiles.

What if I have dental anxiety?

You’re not alone. Many patients feel nervous about getting a filling, especially if it’s their first one or they’ve had a bad experience elsewhere.

At Aesthetic Smile Reconstruction, we offer:

• Laughing gas (nitrous oxide)
• Oral sedation (a pill to help you relax)
• Comfort-first techniques and a supportive team

You’ll never be judged here—just cared for.

Ready to protect or restore your smile?

Whether you’re dealing with a new cavity or have questions about an old filling, we’re here to help. At Aesthetic Smile Reconstruction, we combine science, precision, and comfort to give you care you can trust.

Book your cavity evaluation or filling consultation in Boston today. Let’s keep your smile strong—and pain-free.