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How long should a tooth filling last?

Author

Olivia House

Updated on March 01, 2026

How long should a tooth filling last?

Usually, a filling will last anywhere from 7-20 years, although this depends on the location of the filling, the size, and your dental hygiene. Fillings put up with a lot of stress! Every time you chew, your filling is compromised.

Similarly, how often do fillings need to be replaced?

Depending on the type of material used, fillings usually last between seven to 15 years. If your filling is old and showing some signs of wear, it's best to replace it before it cracks. Replacing problem fillings promptly can help you avoid tooth decay.

Subsequently, question is, do dental fillings last forever? And unfortunately, no, it's not forever. More commonly becoming the preferred treatment for cavities, white fillings, also known as tooth-colored or composite fillings, are a great way to make your restorations virtually invisible. However, it's still one of the most viable, trusted options for treating cavities.

People also ask, how long does tooth filling last?

Assuming that your surrounding tooth remains healthy and the filling itself is not large, you can expect your filling to last for years, even decades: Gold fillings last the longest, anywhere from 15 to 30 years. Silver amalgam fillings can last from 10 to 15 years before they need to be replaced.

How can you tell if a filling is bad?

Some of the most common signs that a dental filling needs to be replaced include:

  1. Sharp pain when biting down or chewing.
  2. Distinct change in texture.
  3. Graying in the tooth enamel around the filling.

Do dentists do unnecessary fillings?

"It's unnecessary for patients to have fillings because they're not required in many cases of dental decay," said Wendell Evans of the University of Sydney in a statement. "This research signals the need for a major shift in the way tooth decay is managed by dentists

Is replacing a filling painful?

It is taken away so that the replacement filling can be inserted and secured. To do this, the dentist has to administer an anesthetic, so that the patient cannot feel any part of the procedure. There should be no pain involved in getting a filling, though the sensation of the drill is likely to feel very strange.

What happens if you don't get a filling replaced?

The decay can cause the tooth to change shape and as a result, the crown of filling no longer fits the tooth properly. You may be eating, or biting on something hard when you discover that a filling or a crown has become loose or fallen out. If this happens your crown may no longer fit.

Can a Dentist mess up a filling?

TYPES OF PROBLEMS THAT CAN OCCUR FROM POOR DENTAL FILLINGS
The failure by a dentist to adequately carry out a filling can lead to ongoing tooth aches and pain. Whilst most people may experience some ache after having a tooth filled, tooth ache which last several weeks may be the sign of a poor dental filling.

Are white fillings strong?

Although white fillings once had a reputation for being less hardwearing, technology has moved on rapidly over the last decade, and white fillings are now much stronger. The additional benefits mean white fillings are increasingly the first choice for people who need their teeth filled.

How much does it cost to replace a filling?

Fillings, while more expensive than basic dental check-ups, both fix cavities and protect your mouth's future health. Most filling treatments hold stable prices in the following ranges: $50 to $150 for a single, silver amalgam filling. $90 to $250 for a single, tooth-colored composite filling.

Why are white fillings more expensive?

White fillings also take longer than silver fillings, only because dentists have to keep teeth completely dry for the filling to adhere. In some cases, a longer procedure equals a higher cost.

Do all cavities have to be filled?

The absence of pain may leave you wondering, “Do small cavities need to be filled?” While it's always essential to promptly treat cavities of all sizes, tooth fillings may not always be the best option. There are a variety of treatments your dentist may recommend depending on where your cavity is located and its size.

Do fillings make your teeth weaker?

Fillings can 'do more harm than good', researchers warn. "Having a filling can increase the risk of tooth decay in neighbouring teeth," reports The Times. Researchers found evidence that, in some cases, fillings were more of a stop-gap than a cure for tooth decay – and could even actually contribute to the problem.

How much is a white filling at the dentist?

How much does an NHS filling cost? Fillings are £62.10 because they're covered by NHS Band 2 fees. Similar to crowns, you'll get white fillings for front teeth, but only amalgam (metal) fillings for your back teeth.

How do you fill a cavity at home?

Keep adding glass ionomer until the cavity is over-filled. Put extra glass ionomer in any other pits on the surface of the tooth near the cavity. Rub petroleum jelly on your finger and press down firmly onto the filling for a few seconds, rolling your finger from side to side. This will make the filling smooth.

Is a white filling better than silver?

Silver fillings are also less expensive than white fillings, so they're good for your bottom line. The main advantage of white fillings is their color. However, these fillings are weaker than silver fillings and might not last as long.

Why is my filling hurting?

Tooth sensitivity: A tooth that has just had a filling placed will be more sensitive to hot foods and cold foods, air temperature, and the pressure of biting. This type of tooth pain after filling a cavity should resolve within a few weeks. If not, contact your dentist.

Can you drink water after filling?

Dentists generally advise patients not to eat or drink anything for the first hour after the filling is placed. A full 24 hours need to pass before the person attempts to eat hard foods. People who opt for composite fillings are often cleared to eat whatever they want right after the procedure.

Is it normal for a filling to fall out?

Fillings and crowns sometimes loosen and fall out. This is rarely an emergency, but it can be painful because the exposed tooth tissue is often sensitive to pressure, air or hot and cold temperatures. In some cases, a filling or crown may come loose because decay has developed underneath it.

Are front teeth fillings noticeable?

Dentists use fillings to repair tooth decay and chipped teeth. When your back teeth become decayed, a filling is not very noticeable. Front teeth, however, show whenever you talk or smile. If your front tooth is damaged, your dentist uses composite resin to make the repair look natural.

Can a gum line cavity be filled?

The traditional approach to gum line decay is to restore these cavities with mercury amalgam or often a white filling. Fillings at the gum line don't last very long because the cavity is in a porous, moist area of the tooth which is often hard to access.

How long do white fillings last?

White fillings don't last as long as silver fillings, and on average sustain for about 7-10 years. Nonetheless, they're still an incredibly strong, successful treatment for most cavities.

Should fillings feel rough?

While your dentist will do their best to file down rough edges, it's totally normal for you to notice residue or tiny bits of filling in your mouth for a few hours following the surgery.

Why do I keep getting cavities?

Cavities are permanently damaged areas in the hard surface of your teeth that develop into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of factors, including bacteria in your mouth, frequent snacking, sipping sugary drinks and not cleaning your teeth well.

Why did my filling fall out?

Permanent fillings become loose and fall out for many reasons. Third, a filling might fall out because of newly developed decay in the area surrounding it. Finally, biting hard food can loosen of the filling. A filling falling results in exposure of the interior surface of your teeth to bacteria and food particles.

What to expect after a deep filling?

A short lasting hypersensitivity reaction to heat, cold and sometimes pressure, which subsides once the stimulus is removed, is normal following a deep filling. This may last for several weeks. Occasionally, a tooth will initially settle well, only to develop worsening symptoms after several weeks or months.

Had a cavity filled and now it hurts?

Tooth sensitivity: A tooth that has just had a filling placed will be more sensitive to hot foods and cold foods, air temperature, and the pressure of biting. This type of tooth pain after filling a cavity should resolve within a few weeks. If not, contact your dentist.

Can dentist hit a nerve when doing filling?

It is possible to suffer nerve injury through dental work; this can be after an injection for anaesthesia, tooth replacement, crowns or after a tooth extraction (see Wisdom Teeth). The lingual nerve is located inside the mandibular bone and the inferior alveolar nerve is located in the alveolar canal.