Failing Old Silver Fillings – Are They Due to Be Removed?
More than three-quarters of Australians have at least one filling – a statistic that increases to almost nine out of ten aged 55 and above. Since the early 1800s, dentists have used amalgam fillings, which are commonly referred to as silver fillings. The material is both practical and robust, but it does have some negative factors, so patients at our dental practice in Brisbane commonly choose to replace their amalgam filling with a composite resin alternative.
Reasons for Replacing Amalgam Fillings
Silver fillings are strong, durable and cost-effective. But there are disadvantages to amalgam fillings, too:
- Amalgam corrodes and cracks over time, which can lead to infection and tooth decay.
- Older amalgam fillings might contain mercury or lead, both of which are toxic.
- Amalgam fillings are noticeable, even on back teeth, if your mouth is wide open.
For all of these reasons, patients commonly choose to replace their amalgam filling, or sometimes, their dentist recommends replacement. Composite resin fillings are a preferable alternative. This type of filling is strong, versatile, and practically invisible, as it can be colour-matched to the tooth.
Root Causes of Sensitive Teeth
We have established that sensitivity is brought about by dentin becoming exposed. But that leads to the question of how this comes about. There are two common ways. The first is when the enamel that coats the tooth is worn away. The second cause is when the root of the tooth, which is not covered in enamel, becomes exposed through gum recession. Dentin can also become exposed when a tooth is cracked or when you have a cavity.
Diagnosing Sensitive Teeth
Diagnosing which of these causes sensitive teeth is the first step in resolving the problem. So, if you experience sensitivity, it is important to visit your dentist without delay.
The positive news is that the root cause is usually quite easy to track down with a physical examination combined with your description of the symptoms and triggers. This is why it is so important to take some time to establish what is triggering the pain and which tooth or teeth are affected.
Treatment Options for Sensitive Teeth
There are a range of treatment options available for sensitive teeth. If the problem is caused by tooth damage, such as a crack or cavity, the dentist can fill the cavity or apply dental varnish. This can also be applied to exposed roots, along with other treatments to address receding gums.
It is just as important to take your dentist’s advice on oral hygiene practices that can help ease the sensitivity. Again, these will depend on your specific circumstances, but they might include using special de-sensitising toothpaste or applying it in a specific way to exposed roots. You might also be advised to use a particular type of toothbrush or to make some changes to your dietary habits, such as cutting down on fizzy drinks or acidic food types.
Old silver fillings are one of many possible tooth problems we treat at our clinic.
Schedule an Appointment Today
We offer same-day visits and late opening hours that work around your schedule. Contact our friendly, caring team today to book a time to examine old silver fillings that you might want to replace with modern white resin alternatives. We’re providers with Medibank, HCF and MDF. You can claim your health fund rebate on the spot with our HICAPS machine.
* Any invasive or surgical procedure may carry risks. Before moving forward, it is recommended that you seek a second opinion from an appropriately licensed medical professional.
Common Questions & Answers About Silver Fillings
Do I have to replace my old silver fillings?
It is not always necessary to replace amalgam fillings. They can last many years if you properly care for them with regular brushing and flossing. Your dentist will only recommend replacement if there are signs that the filling is starting to fail. Some people also choose to have old silver fillings replaced for aesthetic reasons or because they are worried about the heavy metal content. Your dentist can offer guidance and information to help you decide.
Can silver fillings fall out?
Unlike modern composite resin fillings, amalgam fillings are not bonded to the tooth. The metal used expands and contracts with fluctuations in temperature, so it can loosen and fall out over time.
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Will it be painful to have a filling replaced?
No, replacing a filling is a painless procedure that will be completed under a local anaesthetic. You will not feel any pain during the procedure. Some people experience minor sensitivity and tenderness immediately after having a filling replaced, but it usually settles down after a few days.
How much does it cost to replace silver fillings?
Apart from the cost of a new filling, there is no additional cost to remove the silver filling. Our fillings range from $200.00-$450.00 depending on the size and location. Our dentists will be able to give you a tailored treatment plan and detailed quote after a consult.
How long do silver fillings last?
Amalgam fillings typically last between 10 and 15 years and often last even longer. The exact metal compound used and how well you take care of your teeth determine this.
Are old silver fillings safe?
To address this question, many studies have been undertaken by highly respected organisations such as the FDA and the Mayo Clinic. They all conclude that amalgam fillings are safe. Nevertheless, as silver fillings contain toxic heavy metals, some people feel uncomfortable about them and prefer replacing them with non-toxic alternatives.
What treatments are available for a dead tooth?
Generally, the best course of action is to see a dentist who will x-ray the tooth to assess the damage. They may recommend either a root canal or tooth removal as a form of treatment, or in some cases, an infected dead tooth requires the immediate removal of the infection before any form of treatment can be administered. Extraction may be necessary if the tooth has already rotted down to its root and cannot be saved. Surgery may be necessary to remove the dead tooth, during which your dentist will make an incision in the gums to get to the tooth. Once the tooth is removed, the area may need to be stitched up to reduce bleeding and promote healing. A restoration may be required to maintain the mouth’s structural stability.
How can I avoid the need to have fillings?
There is no guaranteed way to avoid tooth decay; most people will need at least one filling sooner or later. However, you can reduce the likelihood of cavities by brushing and flossing your teeth at least twice a day and paying regular visits to your dentist and hygienist.