How many times can a dental filling be replaced? (2024)

How many times can a dental filling be replaced?

There is no single number of how many times you can have a filling replaced. Usually, we will stop replacing the dental filling after the hole becomes too large. Once you have more filling material than natural tooth material your tooth no longer holds enough strength.

Is there a limit to how many times a tooth can be filled?

However, most teeth can safely have up to three fillings. If a tooth has more than three fillings, there is a greater risk of the tooth breaking or developing problems with the nerves and blood vessels inside the tooth.

Can fillings be replaced indefinitely?

Fillings don't last forever. In fact, sometimes they need replacing due to regular wear and tear.

Can a filling be redone?

If your filling no longer protects your tooth as it should, it can cause bacteria and tiny food particles to become trapped underneath it. You'll need to have the filling replaced to prevent new decay. If you have a composite filling, it's normal for it to discolor over time.

How often do composite fillings need replacing?

Depending on the type of material used (eg. amalgam or composite resin), fillings often last between 7-15 years. If your filling is old and starting to show some signs of wear and tear, it's important to replace it before it cracks.

How many times can a deep filling be replaced?

There's no set number of replacements per tooth. Consider that each time a filling is placed, more tooth material is removed to accommodate it. When too much natural tooth structure has been removed, an alternative is needed to close the gap.

Is it bad to have 10 fillings?

New research suggests that methyl mercury may cause damage even at low levels. “As toxicologists, we know that mercury is poison, but it all depends on the dose. So, if you have one dental filling, maybe it's OK. But if you have more than eight dental filings, the potential risk for adverse effect is higher,” Yu said.

Does replacing old fillings hurt?

For the patient, a filling replacement will not feel any different from any other dental work. The local anesthetic ensures that you do not feel any pain during the procedure. After removing the old silver filling material, your dentist prepares the tooth for the new filling, onlay, or dental crown.

What is the life expectancy of a filling?

Usually on an average, dental fillings last for 10 years or more, and in some cases less. Among the materials that are used for dental fillings, amalgam lasts longest after gold. Amalgam lasts for 15 years, followed by ceramic, around 15 years, composite around 7 years and glass ionomer around 5 years.

How many cavities is normal in a lifetime?

The National Institute of Health says that over 90% of adults will have cavities in their lifetime. In a study performed, it was calculated that the average amount of cavities an individual has in their lifetime is 3.28.

Can you get a filling more than once?

It's possible to have several fillings in your tooth, but your dentist can't place different fillers on the same tooth. Your tooth comprises other surfaces; damage can occur on any surface, including grooves or cusps. If you take sugary foods in excess, decay may appear on your tooth's biting surface and the sides.

Why does my tooth hurt with an old filling?

Sometimes, the bacteria in your mouth can work their way into the seam between an old dental filling and the tooth enamel. This can cause sensitivity, general discomfort, or increasing toothache pain. Without treatment, this could result in a severe cavity to within the tooth.

How do dentists remove old fillings?

The Removal Process

The dentist will use a small tool to break up the existing filling and the suction to remove the vapors and particles from your mouth. The dentist may use a small instrument that actually fits over the tooth that pulls all vapors and material in as soon as it is broken loose from your tooth.

How do you know when a composite filling needs replacing?

The most absolute sign that your filling needs to be replaced is if you notice a gap where it used to be. In most cases, you may also find the filling or pieces of it if it has fallen out.

What type of filling lasts the longest?

Dental fillings that are made of metal or gold materials are known to last upwards of 20 years. On the flip side, more modern materials such as porcelain should also last a while, however, typically, not more than 10 years. Composite resin, while a popular material, is not as strong.

What is the survival rate of composite filling?

The overall survival rate of composite restorations was 90.7% after 3 years, 89.5% after 5 years, 89.3% after 7 years and 75.6% after 10 years. The highest loss rate was for class II restorations at molars.

Do you need a root canal if a filling falls out?

It's important to deal with a filling that fell out — even if you're feeling no pain. The tooth beneath the filling is now exposed and will continue to decay. A broken or cracked filling could lead you to needing a root canal. In worst case scenarios, it could even lead to failure of the entire tooth.

What happens if a filling keeps falling out?

Can a loose filling cause complications? If a filling isn't replaced within a few days, it could cause damage to the unprotected tooth. Bacteria and food particles can stick into the empty space, causing decay. Also, the missing filling can expose dentin, the second layer of tooth under the hard outer enamel.

How many fillings is normal at 30?

Young adults (20-39 years old)

Depending on oral health and prior dental care, the number of fillings in young adults can vary greatly. However, the frequency of cavity fillings for young adults is typically between 4 and 8.

What if my dentist says I need a filling but I have no pain?

“If your dentist tells you you need a filling and you're not in any pain, that's a very good thing,” says Dr. Chris Salierno “It means your cavity is minor enough that the fix is simple. It's very important to treat a cavity as soon as it's discovered.

Do fillings do more harm than good?

"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.

Can fillings make teeth worse?

If the seal between the tooth enamel and the filling breaks down, food particles and decay-causing bacteria can work their way under the filling. You then run the risk of developing additional decay in that tooth. Decay that is left untreated can progress to infect the dental pulp and may cause an abscessed tooth.

Does replacing a filling require drilling?

Replacing a filling in many cases is easier than getting a new filling, because there is not as much drilling involved. We use the same procedure for replacing a filling as we do creating a new filling. We numb the area. There is a little drilling and a little filling- and you're out of our chair.

What does a worn filling feel like?

Even a tiny crack in the filling can affect its ability to protect the tooth. Some fillings look intact but start to feel rough when you put your tongue over them. Fillings should feel smooth, and signs of roughness are a sign that the filling is wearing down.

How does a dentist refill a filling?

So, what can you expect from a filling replacement procedure? Well, it's mostly the same as a regular filling procedure, but with a tad more work on the part of the dentist, who will remove the old or damaged filling and replace it with a new one. As with any filling, you always have options.


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