Silver fillings, also known as dental amalgam fillings, are a common and effective treatment for dental cavities.
They have been used for over 150 years in dentistry and are still widely used today.
What is in a Silver Filling?
Silver fillings are made from a combination of metals. The main components include:
- Metallic mercury
- Silver
- Tin
- Copper
These materials are mixed together to form a strong, durable, and long-lasting filling material.
Metallic Mercury
Metallic mercury is the primary component of silver fillings, making up about 50% of the mixture. It is a key ingredient because of its unique properties that allow it to bind with the other metals, resulting in a stable and strong filling material.
Silver
Silver is added to the mixture to improve its strength and resistance to corrosion. It also helps the filling material withstand the forces of chewing and grinding.
Tin
Tin is included in the mixture to provide additional strength and durability. It also helps prevent the filling from breaking or cracking under pressure.
Copper
Copper is used in silver fillings to improve their resistance to wear and tear, as well as to provide antimicrobial properties to help protect against bacterial growth in the mouth.
How Are Silver Fillings Used?
When a dentist places a silver filling, they start by removing the decayed part of the tooth and cleaning the area thoroughly. The dentist will then place the mixed silver filling material into the prepared cavity, ensuring it is properly shaped and contoured to fit the tooth's natural structure. Once in place, the filling material hardens and bonds securely to the tooth, providing a strong and reliable restoration.
Benefits of Silver Fillings
Silver fillings offer several advantages, including:
- Durability: Silver fillings are known for their long-lasting performance and can withstand the pressures of daily chewing and biting.
- Strength: The combination of metals in silver fillings creates a strong and sturdy restoration that can endure wear and tear.
- Cost-Effective: Silver fillings are an affordable option for treating cavities, making them a practical choice for many patients.
- Quick Setting: The filling material hardens rapidly, allowing for efficient and timely placement during a dental appointment.
- Proven Track Record: Silver fillings have been used for decades and have a well-established history of effectiveness in dental restorations.
Overall, silver fillings continue to be a popular choice for dental restorations due to their durability, strength, and cost-effectiveness.