Dental amalgam is a dental filling material used to fill cavities caused by tooth decay. It has been used for more than 150 years in hundreds of millions of patients around the world.
What is an amalgam?
Dental amalgam fillings are also known as “silver fillings” because of their silver-like appearance.
Dental amalgam is a mixture of metals, consisting of liquid (elemental) mercury and a powdered alloy composed of silver, tin, and copper. The chemical properties of elemental mercury allow it to react with and bind together the silver/copper/tin alloy particles to form an amalgam.
The Pros and cons of an amalgam
Frequently Asked Questions
Find answers to common questions and enquiries about amalgam’s here and get clarification for important information and potential concerns you may have.
What is an amalgam filling?
An amalgam filling is a type of dental restoration made from a mixture of metals, including silver, tin, copper, and mercury. Dentists have used it for more than 150 years to fill cavities caused by tooth decay.
Why are amalgam fillings called ‘silver fillings’ if thyey contain mercury?
They’re called ‘silver’ because of their colour, not because they are made of pure silver. The material is an alloy (a mix of metals), and mercury binds the metals together into a strong, solid filling.
Are amalgam fillings safe?
Yes, for most people. The mercury in amalgam is bound within the alloy and is not the same as elemental or toxic mercury vapor in unsafe forms, however certain groups, such as pregnant women, nursing mothers, and people with mercury allergies, may be advised to avoid them.
What are the advantages of amalgam fillings?
- Long-lasting (often 10-15 years or more)
- Strong and able to withstand heavy chewing forces
- Less expensive than many alternatives
- Quick to place during dental treatment
What are the disadvantages of amalgam fillings?
- Silver colour is more noticeable than tooth-coloured options
- Requires removal of slightly more healthy tooth structure during preparation
- May expand and contract with temperature changes, which can sometimes cause cracks in the tooth over time
- Contains mercury, which some patients prefer to avoid
How long do amalgam fillings last?
With good oral hygiene and regular dental check-ups, amalgam fillings can last 10-15 years, and in some cases even longer.
Can I replace my old amalgam fillings with tooth-coloured ones?
Yes, but replacement should only be done if your dentist recommends it. For example, if the filling is worn, cracked, or there’s decay underneath. Replacing fillings for cosmetic reasons alone is a personal choice, but unnecessary removal can weaken the tooth.
What happens if my amalgam filling cracks or falls out?
Contact your dentist promptly. They will check for underlying decay or damage and discuss whether to repair or replace the filling with amalgam or a tooth-coloured material.
Is there a risk of mercury exposure when removing amalgam fillings?
Yes, but it can be minimised. Dentists use special techniques, such as high-volume suction, rubber dams, and water cooling, to reduce any mercury vapor during removal.
hOW SHOULD i CARE FOR MY AMALGAM FILLINGS?
- Brush twice a day with fluoride toothpaste
- Floss daily
- Avoid chewing extremely hard objects like ice
- Visit your dentist regularly for check-ups
What our patients say
“We have been with our previous dentist for 37 years but the changes over recent years forced us to change. We chose Alvington House and could not be more pleased. Wish we had moved years ago! The organisation is professional and the care is calm and experienced. I hope we will be around for another 37 years with Alvington. Thank you to Mr Nigel Slattery and Sarah.”
Sheila Burke.
“As a private patient with the practice, I could not be happier with the service I’ve received in the short time I’ve been coming here. Mr Soares is an absolute asset to the practice and made me feel heard from the get go. Which, for someone with anxiety over dental related anything, is a definite plus. Highly recommend this practice if you’ve the finances for private care.”
Rick Cole.
“Fantastic practice and people. On top of routine check-ups, Joel did teeth whitening and a crown for my front tooth that previously had root canal and filling. I’m so happy with the results and feel like I can smile properly again for the first time in years.”
Evan Doble.
“Being a very nervous dental patient, the prospect of a molar extraction was very daunting. I was seen on the same day as I phoned in in pain and my tooth was taken out within two days. Mr Surti was brilliant! I was amazed at how easy and painless it was compared to my awful childhood experiences. Very calm and professional and made every effort to squeeze me in as soon as possible. All the staff were brilliant. I highly recommend this dental practice and especially Mr Surti.”
JoJo.
“Alvington House has been our family’s dentist for several years now and we have no complaints. Our dentist, Mr Surti, is kind and knowledgeable. The receptionists and dental nurses are top notch. Highly recommended dental practice.”
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