The Rise and Fall of Amalgam Fillings: Exploring Their History, Concerns, Removal and the UK Ban

Amalgam fillings, widely known for their durability and strength, have been a common choice in dental practices for decades. With a history spanning over 150 years, these fillings have faced increasing scrutiny regarding their safety. The UK has even taken steps to ban their use. In this post, we will explore the background of amalgam fillings, their materials, the arising concerns, the UK ban, and how Infinity Dental & Beauty Spa safely handles their removal. If you have existing silver fillings, we will provide guidance on your options.

Infinity Dental & Beauty Spa has never placed a single silver filling since they opened in 2016.

Why?

What Are Amalgam Fillings?

Amalgam fillings, often called "silver fillings," are made from a blend of metals, primarily including:

• Mercury (about 50%): This essential component helps to bind the other metals together.

• Silver: Provides strength and enhances durability, with silver content often around 22 percent.

• Tin: Improves the filling's workability and resistance to corrosion, accounting for approximately 14 percent.

• Copper: Increases strength and minimises corrosion, typically making up 6-8 percent of the mixture.

  
  

Due to this combination, amalgam fillings are particularly effective for lasting repairs to back teeth, which endure substantial chewing pressures. Studies show they can last 10 to 15 years, providing value for many patients.

The Historical Significance of Amalgam Fillings

Amalgam fillings have been utilised since the early 1800s, gaining widespread adoption by the mid-20th century. They became a favourite for many reasons:

• Durability: Amalgam fillings are resistant to wear and can withstand significant forces, making them ideal for teeth that undergo heavy chewing.

• Longevity: They last from 10 up to 20 years.

• Cost-Effectiveness: Typically ranging from £50 to £150 per filling, they are generally more affordable than composite alternatives, making them accessible for a broader range of patients.

• Ease of Placement: Dentists can place amalgam fillings quickly, allowing for efficient treatment of various dental issues.

  
  

Despite these benefits, public concern about their safety has grown, overshadowing these advantages.

Concerns About Amalgam Fillings

The most pressing concern about amalgam fillings is their mercury content. Mercury can release vapour over time, especially during dental procedures or when exposed to heat from foods and drinks. Potential health risks include:

• Neurological Effects: Studies indicate that high levels of mercury exposure may contribute to neurological issues, such as tremors and cognitive decline. For example, a meta-analysis found that those with higher mercury exposure had a 30% increase in the risk of neurological disorders.

• Environmental Impact: Mercury can pollute waterways through dental waste, with estimates suggesting that dental practices are responsible for up to 6% of annual mercury emissions in some regions. This pollution can harm aquatic life, affecting ecosystems at large.

  (The Infinity Dental & Beauty Spa have amalgam filter in our systems so they do not go out into our waterways).

  
  

Why Consider Removing Your Amalgam Fillings?

1. Mercury Exposure Concerns: Although the levels of mercury in amalgam fillings are considered low, some studies suggest that exposure can increase, especially through wear, grinding, or cracking. Some patients report symptoms such as fatigue, headaches, or a metallic taste, which they associate with mercury sensitivity.

2. Aesthetic Reasons: Amalgam fillings are quite noticeable—especially in the back teeth—and can darken over time. White composite fillings blend naturally with your tooth colour and are a popular alternative for a more beautiful smile.

3. Cracked or Leaking Fillings: Over time, amalgam fillings can expand and contract with temperature changes in your mouth, which may lead to cracks in the tooth or gaps that allow bacteria to sneak in, potentially leading to decay which is not noticeable on x-rays.

4. Peace of Mind: Many patients simply feel better knowing that a potentially toxic material has been removed from their body.

As awareness of these risks rises, many countries are reevaluating the use of amalgam fillings.

The Ban on Amalgam Fillings in the UK

In July 2020, the UK government instituted a ban on amalgam fillings, particularly for vulnerable groups like pregnant women, children, and individuals with specific health conditions. This decision was in line with the European Union’s commitment to reducing mercury waste and promoting safer dental practices. A complete ban was reinforced on January 2025.

The ban was driven by increasing evidence suggesting that the risks of using amalgam can surpass their benefits, particularly when advanced dental materials are available. Alternatives like composite resins are now favoured for their safety and aesthetic appeal.

The Isle of Man's Stand on Amalgam Fillings

While the UK has established a clear ban on amalgam fillings, the Isle of Man has not yet introduced such legislation. However, health officials are actively monitoring the situation and assessing existing risks. As public awareness of the potential dangers of mercury grows, there are signs that similar regulations could be implemented in the near future.

What to Do If You Still Have Silver Fillings

If you still have amalgam fillings, assessing their condition regularly is crucial. Here are steps to take:

• Consult Your Dentist: Schedule a dental appointment to evaluate the current state of your fillings and discuss any mercury exposure concerns. (i.e. leaking silver filling)

• Explore Replacement Options: If your dentist recommends removal, work together to examine safe, non-toxic alternatives that meet your dental needs.

• Monitor Symptoms: If you notice any health problems you believe may relate to your fillings, consult your healthcare provider for further analysis.

  
  

Risks of Removing Amalgam Fillings – And How We Keep You Safe

Amalgam removal isn’t as simple as drilling it out. When not done properly, mercury vapours and particles can be released into your mouth and lungs, posing a health risk.

At Infinity Dental & Beauty Spa, we prioritise your safety through SMART (Safe Mercury Amalgam Removal Technique) protocols:

✅ Rubber Dam Isolation – Prevents mercury particles from being swallowed.

✅ High-Volume Suction – To capture vapour and debris efficiently.

✅ Air Filtration & Ventilation – Our rooms are equipped with negative pressure and air purifiers designed for mercury vapours. We also monitor our air quality.

✅ Protective Gear – For both patient and practitioner.

✅ Pre- and Post-Treatment Care – Including an aftercare advice, nutritional guidance and detox support if needed.

After removal, patients can consider safer alternatives for filling materials, such as composite resin, ceramic or porcelain, which offer similar durability and aesthetic finishes.

When performed by trained professionals, amalgam removal can be safe, effective, and incredibly beneficial to your overall wellbeing.

Reflections on Amalgam Fillings

The saga of amalgam fillings is a story of innovation and concern in dental practices. While these silver fillings were once the standard, increasing apprehension regarding their safety has prompted significant changes in dental policies. The ban on amalgam fillings in the UK underlines a broader commitment to patient health and environmental safety. For those still harbouring amalgam fillings, seeking professional advice and exploring safe removal options is essential for maintaining long-term health.

Is Amalgam Removal Right for You?

Not everyone needs to remove their fillings—but if you’re experiencing symptoms, concerned about mercury exposure, or simply want a more aesthetically-pleasing smile, we’re here to help.

At Infinity Dental & Beauty Spa, we’ve helped many patients transition away from metal fillings safely, comfortably, and with fantastic results.

Book Your Consultation

If you’re considering removing your amalgam fillings or want to learn more about your options, book a consultation with our friendly team. We’ll assess your oral health, discuss your goals, and create a personalised treatment plan just for you.

Close-up view of teeth with silver fillings