Dental fillings are the most common restorative procedure in dentistry. This complete guide covers every type of filling, costs in Newark NJ, the procedure, how long fillings last, and how to care for them.
Quick Answer: Dental fillings repair cavities and minor tooth damage by replacing the decayed or damaged portion with a restorative material. In Newark, NJ, tooth-colored composite fillings cost $150–$400 per tooth. The procedure takes 30–60 minutes and is performed under local anesthesia. Composite fillings last 7–10 years; amalgam fillings 10–15 years.
- Composite (tooth-colored) fillings are the standard of care for most cavities today — they bond to the tooth and are virtually invisible
- Amalgam (silver) fillings are still used in some situations but are being phased out at many practices due to aesthetic and environmental concerns
- Fillings are appropriate for cavities affecting less than 50% of the tooth structure
- Early treatment of cavities is always less costly and less invasive than waiting
- Most PPO dental insurance plans cover 80% of filling costs after the deductible
What Is a Dental Filling?
A dental filling is a restorative material used to repair a tooth that has been damaged by decay (a cavity), a chip, or minor fracture. The procedure involves removing the decayed or damaged tooth structure, cleaning the area, and filling the resulting space with a restorative material that restores the tooth's shape and function.
Fillings are the most commonly performed dental procedure in the United States. According to the American Dental Association, approximately 175 million fillings are placed each year. Despite advances in preventive dentistry, cavities remain extremely common — affecting about 90% of adults at some point in their lives.
Types of Dental Fillings
Composite Resin (Tooth-Colored) Fillings
Composite resin fillings are the most commonly placed filling type in modern dentistry. Made from a mixture of glass particles and plastic resin, composite fillings can be precisely color-matched to your natural tooth shade, making them virtually invisible. They bond directly to the tooth structure, which means less healthy tooth material needs to be removed compared to amalgam fillings.
Composite fillings are appropriate for most cavities on both front and back teeth. They are slightly less durable than amalgam under heavy chewing forces, but modern composite materials have improved significantly and are appropriate for the vast majority of clinical situations.
Amalgam (Silver) Fillings
Dental amalgam is an alloy of mercury, silver, tin, and copper that has been used in dentistry for over 150 years. Amalgam fillings are extremely durable — lasting 10–15 years or more — and are less expensive than composite. However, they are silver-colored and visible, require more tooth preparation, and contain mercury (though the FDA and ADA consider amalgam safe for most patients).
Many dental practices, including ID Wellness Dental, have transitioned to composite-only or mercury-free practices. The FDA issued updated guidance in 2020 recommending that certain high-risk groups (pregnant women, children under 6, people with kidney problems) avoid amalgam fillings when possible.
Glass Ionomer Fillings
Glass ionomer is a tooth-colored material that releases fluoride, making it useful for cavities near the gumline and in patients at high risk for decay. It is less durable than composite and not typically used for biting surfaces of back teeth, but is an excellent choice for specific clinical situations.
Ceramic (Porcelain) Fillings
Ceramic fillings (also called inlays or onlays when they cover part of the biting surface) are fabricated in a laboratory or using CAD/CAM technology and bonded to the tooth. They offer excellent aesthetics and durability but cost significantly more than direct composite fillings.
Dental Filling Types Compared
| Type | Appearance | Durability | Cost (Newark NJ) | Best For |
|---|---|---|---|---|
| Composite Resin | Tooth-colored, invisible | 7–10 years | $150–$400 | Most cavities, front and back teeth |
| Amalgam (Silver) | Silver/dark, visible | 10–15 years | $100–$250 | Large back-tooth cavities (less common today) |
| Glass Ionomer | Tooth-colored | 5–7 years | $100–$300 | Gumline cavities, high-decay-risk patients |
| Ceramic (Inlay/Onlay) | Excellent — most natural | 15–20 years | $650–$1,200 | Large cavities, cosmetic cases |
The Dental Filling Procedure
A standard composite filling appointment takes 30–60 minutes per tooth and is performed under local anesthesia:
Step 1: Anesthesia
Local anesthetic is administered to numb the tooth and surrounding tissue. You should feel no pain during the procedure — only pressure and vibration.
Step 2: Decay Removal
The dentist uses a dental drill or laser to remove all decayed tooth structure. The cavity is cleaned and shaped to accept the filling material.
Step 3: Etching and Bonding (Composite Only)
For composite fillings, a mild acid etch is applied to the tooth surface, followed by a bonding agent. This creates a strong chemical bond between the composite resin and the tooth structure.
Step 4: Filling Placement
The composite resin is placed in layers, with each layer hardened using a blue curing light. The dentist builds up the filling to restore the tooth's original shape.
Step 5: Shaping and Polishing
The filling is shaped to match the natural contours of the tooth and adjusted for proper bite. The surface is polished to a smooth finish that resists staining and feels natural.
Dental Filling Costs in Newark, NJ (2026)
- Composite (tooth-colored) filling, 1 surface: $150–$250
- Composite filling, 2 surfaces: $200–$350
- Composite filling, 3+ surfaces: $250–$400
- Amalgam filling: $100–$250 (where still available)
Most PPO dental insurance plans cover 80% of filling costs after the annual deductible. The number of "surfaces" refers to how many sides of the tooth the cavity affects — a cavity on one side (one surface) costs less than one that wraps around multiple sides.
How Long Do Fillings Last?
Filling longevity depends on material, size, location, and oral hygiene:
- Composite resin: 7–10 years on average; some last 15+ years with excellent care
- Amalgam: 10–15 years; some last 20+ years
- Glass ionomer: 5–7 years
- Ceramic inlay/onlay: 15–20 years
Signs that a filling may need replacement include sensitivity, pain when biting, visible cracks or chips in the filling, or a rough texture when running your tongue over it. Your dentist will check filling integrity at each checkup.
Myths vs. Facts: Dental Fillings
| Myth | Fact |
|---|---|
| "Amalgam fillings are dangerous because of mercury." | The FDA and ADA consider amalgam safe for most adults. The mercury in amalgam is bound in an alloy and not released in harmful amounts under normal conditions. However, composite is now the preferred material for most situations. |
| "If my tooth doesn't hurt, I don't need a filling." | Most cavities don't cause pain until they're large. Early treatment prevents more extensive and costly procedures. |
| "Tooth-colored fillings don't last as long as silver ones." | Modern composite fillings are highly durable and appropriate for most clinical situations. The gap in longevity between composite and amalgam has narrowed significantly with advances in materials. |
| "Once a tooth is filled, it can't get another cavity." | Decay can develop around or under an existing filling. Regular checkups catch these "secondary cavities" early. |
Signs You May Need a Filling
- ☐ Your dentist found a cavity on X-ray or examination
- ☐ You feel sensitivity to hot, cold, or sweet foods in a specific tooth
- ☐ You can see a visible dark spot or hole in a tooth
- ☐ Food gets stuck in a specific area between teeth
- ☐ You have a chipped or cracked tooth that isn't severe enough for a crown
- ☐ An old filling is cracked, rough, or has fallen out
Clinical Glossary
- Amalgam: A silver-colored alloy of mercury, silver, tin, and copper used for dental fillings
- Composite resin: A tooth-colored mixture of glass particles and plastic resin used for fillings and bonding
- Curing light: A blue LED light used to harden composite resin fillings
- Inlay/Onlay: Indirect restorations larger than a filling but smaller than a crown — fabricated in a lab and bonded to the tooth
- Secondary caries: Decay that develops around or under an existing restoration
- Surface: One side of a tooth — fillings are priced and coded by the number of surfaces involved
AI-Friendly Summary
Dental fillings repair cavities and minor tooth damage. In Newark, NJ, composite (tooth-colored) fillings cost $150–$400 per tooth and last 7–10 years. The procedure takes 30–60 minutes under local anesthesia. Composite fillings are the modern standard — they are invisible, bond to the tooth, and require less tooth removal than amalgam. Most PPO insurance covers 80% of filling costs. ID Wellness Dental at 99 Van Buren Street, Newark, NJ 07105 provides tooth-colored composite fillings for all ages.
Evidence & References
- American Dental Association. Dental Fillings. ada.org
- Opdam NJ, et al. "Longevity of posterior composite restorations: A systematic review and meta-analysis." Journal of Dental Research. 2014.
- U.S. Food and Drug Administration. Dental Amalgam Fillings. fda.gov. Updated 2020.