Dental Fillings – Repairing Teeth with Care

Dental fillings are one of the most common restorative treatments and are used to repair cavities or minor tooth damage. Tooth decay is the most frequent cause, but teeth may also need fillings due to cracks, fractures, tooth grinding (bruxism), nail biting, or dental trauma.
During treatment, the dentist will carefully remove the decayed or weakened portion of the tooth before restoring it with the most appropriate filling material. The result is a tooth that is sealed, protected, and able to function normally again.
We offer different types of fillings depending on your clinical needs:

White (composite) fillings, which bond directly to the tooth and provide a natural appearance
Amalgam fillings, which remain a strong and durable option in certain cases, particularly where biting forces are high
Glass ionomer fillings, often used in specific situations where fluoride release is beneficial

Your dentist will always discuss the options with you and recommend the most suitable material based on the size, position, and function of the tooth.

Repairing and Replacing Old Fillings

Even well-placed fillings do not last forever. Over time, they may wear down, crack, leak, or become loose — especially if new decay develops around them. The good news is that these issues can usually be repaired or replaced before they cause further damage.
Regular dental check-ups allow us to monitor existing restorations and intervene early, helping you avoid more complex treatment in the future.

Dental Fillings FAQs

When do I need a dental filling?

A filling is usually needed when a tooth has decay (a cavity) or minor damage such as a small crack or worn area. Fillings seal the tooth and prevent bacteria from causing further damage.

What types of fillings are available?

At Surrey Dental Practice, we offer white (composite) fillings, glass ionomer fillings, and amalgam fillings. Your dentist will recommend the most suitable option based on the tooth’s location, size of the cavity, and biting forces.

Are white fillings as strong as metal fillings?

Modern composite fillings are very strong and bond directly to the tooth. They are suitable for most areas of the mouth, although in some high-pressure areas, alternative materials may still be recommended.

How long do fillings last?

Fillings can last many years, but their lifespan depends on the material used, oral hygiene, diet, and bite forces. Regular dental check-ups help monitor them.

Do old fillings need to be replaced?

Over time, fillings can crack, wear down, or leak. If this happens, replacement is often recommended to prevent decay from developing underneath.

Can a filling be repaired instead of replaced?

In some cases, yes. Minor defects can sometimes be repaired, but larger issues usually require replacement for long-term success.

How can I tell if a filling is failing?

Signs may include sensitivity, pain when biting, rough edges, or food getting stuck. However, many failing fillings show no symptoms and are detected during routine check-ups.

To find out more and book an appointment with one of our clinicians, please call us on 01483 506277.
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