Tooth Filling 101: What You Need to Know Before Your Appointment

Tooth fillings are one of the most common dental procedures, aimed at treating cavities and restoring the health and functionality of damaged teeth. Whether you’re getting your first filling or are a seasoned dental patient, understanding the basics of tooth fillings can help alleviate any anxiety and ensure a smooth experience. In this comprehensive guide, we will cover everything you need to know before your tooth filling appointment, from the types of fillings available to the process and aftercare.

Different Types of Tooth Fillings

tooth filling

Amalgam Fillings

Amalgam fillings, also known as silver fillings, have been used for decades to treat cavities. They consist of a mixture of metals, including silver, tin, and mercury. Amalgam fillings are durable and cost-effective, making them a common choice for back teeth where aesthetics may be less of a concern.

Composite Fillings

Composite fillings, often referred to as tooth-colored or white fillings, are made from a blend of resin and fine glass particles. They are designed to match the natural color of your teeth, making them an excellent choice for visible areas. Composite fillings bond directly to the tooth, preserving more of the natural tooth structure.

The Tooth Filling Process

Anesthesia and Numbing

Before the filling procedure, your dentist will administer local anesthesia to numb the affected tooth and the surrounding area. This ensures that you won’t feel any pain during the procedure.

Removing Decay

The dentist will then use specialized tools to remove the decayed portion of the tooth, creating a clean and prepared space for the filling material.

Once the decay is thoroughly removed, the dentist will proceed to shape the cavity, ensuring it’s ready to securely hold the filling. Depending on the type of filling material chosen, the dentist may apply an adhesive layer to help the filling bond well with the tooth structure. The filling is then precisely placed, shaped, and polished to restore the tooth’s original form and function. This not only prevents further decay but also offers a smooth finish, ensuring efficient biting and chewing.

Filling Placement

With composite fillings, the material is applied in layers and each layer is hardened using a special light. This layering technique allows for precise shaping and ensures a strong bond between the filling and the tooth.

Final Adjustments and Polishing

Once the filling is in place, your dentist will make any necessary adjustments to ensure proper bite alignment. The filling is then polished to create a smooth and natural-looking surface.

Aftercare and Sensitivity

Temporary Sensitivity

After a tooth filling, it’s common to experience some sensitivity to hot and cold temperatures. This sensitivity is usually temporary and should subside within a few weeks. Over-the-counter pain relievers can help manage any discomfort.

Longevity and Maintenance

The lifespan of a tooth filling depends on various factors, including the type of filling used, your oral hygiene practices, and the location of the filling in your mouth. With proper care, amalgam fillings can last 10-15 years, while composite fillings generally have a lifespan of 5-7 years.


Tooth fillings are a routine dental procedure that can restore the health and functionality of your teeth. By understanding the different types of fillings available, the process involved, and the aftercare required, you can approach your filling appointment with confidence. Remember that your dentist is your partner in oral health, and they are there to ensure that your filling experience is comfortable and successful. At Iron City Dentistry, your oral health is our priority. Whether you need a simple filling or more extensive dental work, our experienced professionals are here to provide exceptional care.

 Contact us today to schedule a consultation and experience the difference of quality dental treatment.