Amalgam Filling Replacement Cairns

Amalgam fillings – is it ok to leave them in my teeth?

Mercury-containing amalgam fillings have been in use for over 100 years and are a very out-dated technology. The reason why they still seem to be done is short-term cost savings for the patient and even very poorly equipped dental facilities can easily cater to doing this type of filling.

Technically, they represent the easiest fillings to place and it is possibly justifiable in third world countries where advanced dentistry is not readily available. We see no other advantages of this technology and have held a policy of removing amalgam fillings at Future Dental since the late 1980’s.

Why do we remove them?

Amalgam fillings quite simply cause irreversible cracking to the tooth. This is caused by three factors:

  1. Firstly, there is a difference in the expansion and contraction of this metallic alloy compared to normal tooth structure with temperature changes with eating and drinking. This puts a stress in the tooth with every thermal cycle. Young healthy teeth are still resilient and can stretch with the filling. About the mid-thirties, this natural resiliency of teeth starts to diminish and stresses that the tooth previously tolerated eventually cause stress cracks and fractures to occur.
  2. Secondly, various different amalgam alloys will slowly expand due to a chemical reaction with the trace amounts of zinc in the material as it reacts with water (saliva) and this causes a gradual swelling of the filling. This further stresses the tooth at a time when the tooth is already getting weaker.
  3. Thirdly, a metallurgical property of amalgam is static creep. This means as you continue putting chewing pressures on the top of the tooth, the filling gradually flattens out and swells out sideways.

These three factors cause the very high incidence of cracks and fractures in those teeth that have amalgam fillings.

Cracks cause three problems

  1. Firstly, just like a crack in a windscreen, a crack in a tooth only gets bigger and deeper. The tooth becomes greatly weakened and likely to start causing sharp pains which will require a crown to restore the strength of the tooth and eliminate the pain, temperature and sweet sensitivity.
  2. Secondly, when the crack continues down to the nerve (pulp) of the tooth, the nerve will most likely die and you will require a root canal treatment to eliminate the abscess which will follow the nerve invasion of bacteria through the crack. This will likely cost as much or even more than the cost of the crown that the tooth already needs.
  3. Thirdly, and fortunately, less frequently, the tooth can split in two and then usually the only option is an emergency extraction.

Each tooth filled with amalgam is a time bomb just waiting to blow up at the most inconvenient time. Quite often removal of all your amalgams is cheaper than waiting for an emergency procedure or an extraction with the subsequent need to replace the tooth with a bridge or implant. We have the only two KleanAir aerosol filtration devices in North Queensland to prevent re-breathing mercury vapour while removing amalgam fillings for your protection.

We have had numerous patients tell us how their overall health improved after ridding themselves of these fillings. There is no question as to the long-term toxicity issues associated with mercury. If you still have amalgam fillings, the longer you leave them, the more likely you are to suffer the costly and often painful complications that they cause.


What is an amalgam filling?

An amalgam filling is made of a combination of metals and is used to fill cavities in the teeth. Although they are still used in some dentistry practices, the fillings are an outdated technology and can cause serious damage to the teeth. For this reason, we have a policy of removing amalgam fillings.

Why should I have my amalgam fillings replaced?

Amalgam fillings are considered an outdated type of dental treatment that doesn’t measure up to modern dental fillings and ways to repair teeth. Additionally, amalgam fillings also contain low levels of mercury which can be detrimental to your respiratory and mental health.

The more modern fillings are considered safer and more effective. Because amalgam wasn’t designed for long-term placement, it’s better to get the more modern fillings which are. While the filling may last a long time, the tooth around it has a greater chance of fracturing because of the amalgam. Leaving there risks long term need of crowns.

What's wrong with amalgam fillings?

Amalgam fillings, which contain mercury, are actually a very outdated technology and can cause irreversible cracking and fracturing in the tooth. When a tooth cracks, it is weakened. This can cause sharp pain, which will require a crown to restore the strength of the tooth and eliminate painful symptoms and sensitivity. In cases where a crack continues to the nerve of the tooth, it is likely that the nerve will die, leading to the development of an abscess. In rare instances, a cracked tooth can split in two, in which case an emergency extraction is required.

Is it worth having my amalgam fillings removed?

In many cases, having your amalgam fillings removed is cheaper than waiting for an emergency procedure or an extraction, with the subsequent need to replace the tooth with a bridge or implant. The longer you leave your amalgam fillings in place, the more likely you are to suffer from painful complications.

Make an Enquiry

  • Phone (07) 4051 4580
  • Fax (07) 4031 5226
  • Email
  • Address Ground Floor "Accent on McLeod"
    93-95 McLeod St

    Cairns QLD 4870
  • Hours
    Monday 8:00am - 5:00pm
    Tuesday 8:00am - 5:00pm
    Wednesday 8:00am - 5:00pm
    Thursday 8:00am - 5:00pm
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