Fillings
At Princeton Dental, dental fillings are one of the most common and effective treatments used to restore teeth affected by decay or minor damage. Fillings help repair the tooth, prevent further deterioration, and restore normal chewing function while preserving as much natural tooth structure as possible.
Modern dental fillings are designed to be durable, functional, and—in many cases—virtually indistinguishable from natural teeth. As part of our comprehensive general dentistry care, we evaluate each tooth carefully to determine the most appropriate type of filling based on location, bite forces, and aesthetic considerations.
What Is a Dental Filling?
A dental filling is a restorative material used to repair a tooth that has been damaged by decay, wear, or minor fractures. After the decayed or damaged portion of the tooth is removed, the filling material is placed to restore the tooth’s shape, strength, and function.
Fillings help seal the tooth and prevent bacteria from re-entering the area, reducing the risk of future decay and sensitivity.
Traditional vs. Tooth-Colored Fillings
Dental fillings are available in several materials, each with specific benefits depending on the tooth being treated.
Silver Amalgam Fillings
Traditional dental fillings have most often been made of silver amalgam. This material has been used for decades due to its strength and durability, particularly in areas of the mouth where teeth must withstand heavy chewing forces.
Silver amalgam fillings are typically used on back teeth where aesthetics are less critical and long-term durability is a priority.
Tooth-Colored Composite Fillings
Newer dental fillings include ceramic and plastic compounds that closely mimic the appearance of natural teeth. These materials, often referred to as composite resins, are color-matched to blend seamlessly with surrounding enamel.
Composite fillings are commonly used on front teeth where appearance is especially important, but they can also be used on back teeth depending on the size and location of the cavity.
Many patients prefer tooth-colored fillings because they provide a natural look while still offering reliable strength.
Direct vs. Indirect Fillings
Dental fillings can be classified as either direct or indirect restorations, depending on how they are placed and the extent of tooth damage.
Direct Fillings
Direct fillings are placed directly into a prepared cavity during a single visit. Common types of direct fillings include:
- Silver amalgam
- Composite (resin) fillings
- Glass ionomers
- Resin ionomers
Direct fillings are ideal when decay is limited and the remaining tooth structure is strong enough to support the restoration.
Indirect Fillings
Indirect fillings are typically used when a tooth has more extensive damage but does not yet require a full crown. These restorations are fabricated outside the mouth and usually require two or more visits.
Common types of indirect restorations include inlays, onlays, and veneers. These options provide added strength and coverage compared to traditional fillings.
When Is a Filling Enough—and When Is It Not?
Fillings are effective for repairing minor to moderate tooth damage. However, when too much tooth structure has been lost, a filling may not provide adequate support.
In cases where the tooth is significantly weakened, we may recommend a dental crown instead. Crowns provide full coverage and protect the tooth from further fracture.
Our goal is always to choose the most conservative treatment that still offers long-term stability.
The Dental Filling Procedure
The filling process begins with removing decayed or damaged tooth material. Once the tooth is cleaned and prepared, the selected filling material is placed, shaped, and hardened.
For composite fillings, a curing light is used to bond the material securely to the tooth. The filling is then adjusted and polished to ensure a comfortable bite and smooth surface.
Most fillings can be completed in a single visit, making them a convenient and efficient solution.
Fillings and Long-Term Oral Health
Properly placed fillings help prevent decay from spreading deeper into the tooth, which could otherwise lead to infection or the need for root canal therapy.
Routine dental visits allow us to monitor existing fillings and identify wear or breakdown early, helping extend the life of your restorations.
Fillings as Part of Preventive and Cosmetic Care
Fillings play a key role in both preventive care and cosmetic dentistry. Tooth-colored fillings not only restore function but also maintain the natural appearance of your smile.
In some cases, fillings may be paired with treatments such as bonding or professional whitening to achieve optimal aesthetic results.
Are Dental Fillings Right for You?
Most patients will need a dental filling at some point in their lives. The best type of filling depends on tooth location, extent of damage, and personal preferences.
During your visit, we take time to explain your options and help you make an informed decision that supports long-term oral health.
Schedule a Filling Appointment
If you have a cavity, sensitivity, or suspect tooth decay, scheduling an appointment early can help prevent more extensive treatment. New patients can find helpful information on our For New Patients page, and patients without insurance can review options on our Don’t Have Insurance? page.
To schedule a dental filling appointment or learn more about restorative options, please contact our office. Our team is happy to help protect and restore your smile.