The Debate Over Silver Fillings
Recent discussions about the potential banning of silver (amalgam) fillings have many patients wondering about their dental care options. At SS Cosmetic Dentistry, we believe in keeping our patients informed about the latest developments in dental health. This post will explore the implications of a possible ban on silver fillings and compare them with white fillings (composite resin), helping you understand which option might be best for your needs.
Silver fillings, also known as amalgam fillings, have been a mainstay in dental care for decades due to their durability and cost-effectiveness. However, concerns about their mercury content have led to increased scrutiny and discussions about potential bans in various regions. Mercury is known to have toxic effects on the environment and human health, prompting regulatory bodies to consider restrictions on its use.
Several countries have already taken steps to limit or ban the use of amalgam fillings, particularly in vulnerable populations such as children and pregnant women. While the British Dental Association (BDA) still supports the safety of amalgam fillings, ongoing research and advocacy may lead to stricter regulations in the future.
Function and aesthetics:
White Fillings:
- Appearance: White fillings, also known as composite resin fillings, are designed to match the natural colour of your teeth. This makes them an excellent choice for visible teeth, as they blend seamlessly with your smile.
- Versatility: They can be used as filling material in front and back teeth, and in all parts of the tooth. They can be shaped to match the contours of your teeth, ensuring a natural look and feel.
Silver Fillings:
- Appearance: Silver fillings are made from a mixture of metals including silver, tin, copper, and mercury. Their dark colour makes them more noticeable, especially when used on front teeth.
- Durability: Silver fillings are typically used more on back teeth, and are not as aesthetically pleasing as white fillings.
Durability and Longevity
White Fillings:
- Strength: Advances in dental materials have significantly improved the durability of white fillings. While they are strong and can withstand the forces of chewing, they may not be as long-lasting as silver fillings, especially on large cavities. You can expect approx 7 years for composites to last on average. We place a warranty period of 18 months for white fillings at SS Cosmetic Dentistry.
- Maintenance: White fillings can sometimes stain or chip, but they are easy to repair and replace if necessary.
Silver Fillings:
- Strength: Silver fillings are known for their strength and durability. They can withstand significant chewing forces and are particularly effective for larger cavities in molars.
- Longevity: These fillings can last 10 even 20 years, often outlasting white fillings. However, they can cause more wear and tear on the surrounding tooth structure over time.
Safety and Health Considerations
White Fillings:
- Composition: Made from a mixture of plastic and fine glass particles, white fillings are free from mercury, making them a preferred choice for patients concerned about mercury exposure.
- Bonding: They bond directly to the tooth structure, which can help to strengthen the tooth and prevent further decay.
Silver Fillings:
- Composition: Contains mercury, which has raised concerns for some patients. The BDA maintains that amalgam fillings are safe; however, those with allergies or sensitivities to metals might prefer to avoid them. Mercury is difficult to dispose and has to be removed separately in the dental practice environment.
- Expansiveness: Silver fillings can expand and contract with temperature changes, potentially causing cracks in the tooth over time.
Procedure and Cost
White Fillings:
- Procedure: Typically requires more time than placing silver fillings because the tooth must be kept dry and clean while the composite resin is applied in layers.
- Cost: Generally more expensive than silver fillings due to the material costs and the technique-sensitive nature of the procedure.
Silver Fillings:
- Procedure: Quicker to place and usually less technique-sensitive, making them a practical choice for many dental professionals.
- Cost: Often more affordable than white fillings, making them a cost-effective option for patients on a budget.
Making the Right Choice
The potential ban on silver fillings is an important consideration for your dental health decisions. The decision between white and silver fillings should be made in consultation with your dentist, taking into account your dental needs, aesthetic preferences, and budget. At SS Cosmetic Dentistry, our experienced team is here to help you weigh the pros and cons of each option and choose the best solution for your smile.
Remember, the best filling is no filling at all! Regular dental check-ups and good oral hygiene practices are your first line of defence against cavities. If you have any questions or need to schedule an appointment, please don’t hesitate to contact us.