functional dentistry and occlusion from new generation
What Are the Best Dental Fillings?
Gold and platinum fillings are among the best options for restoring teeth due to their properties, biocompatibility, and durability. Gold fillings, in particular, can last a lifetime with proper care. They are highly resistant to corrosion and wear, making them suitable for restorations in areas subjected to high chewing forces. However, their aesthetics are not typically favored in modern dentistry, as very few patients prefer to disclose gold fillings in their smiles.
Until we have white versions of these superior precious metals, we rely on white, tooth-mimicking materials. Many new materials offer excellent properties, and advanced options such as 3D printing can closely mimic the natural structure and texture of teeth.
Not so long ago, dark amalgam fillings – a mixture of metals including silver, tin, copper, and mercury-were widely used. Their durability and strength made them popular, but their mercury content – a well-known neurotoxin – raised significant health concerns. This led to the development of safer and more aesthetically pleasing filling materials.
Composite and Resin Fillings
Composite and resin-based fillings are designed to match the natural color of teeth, offering an aesthetically pleasing solution for patients. Composites are made from a mixture of plastic and fine glass particles, providing a strong bond to the tooth structure.
These fillings are versatile and can be used to repair decayed, chipped, broken, or worn teeth. The application process involves conditioning the tooth surface, applying the composite in layers, and hardening each layer with a blue curing light. This technique enables dentists to sculpt the filling to fit the tooth perfectly.
While composite fillings are less durable than amalgam, they are mercury-free and provide a more natural appearance. They are particularly suitable for smaller restorations and areas where chewing pressure is moderate. Regular maintenance and good oral hygiene can help prolong their lifespan.
Ceramic Fillings
Ceramics, including porcelain, are among the most advanced dental materials available today. They can closely mimic the natural form and shape of enamel, making them highly desirable for visible teeth. Ceramic fillings are known for their strength, durability, and resistance to staining, which helps maintain their aesthetic appeal over time.
When properly cemented, ceramic restorations establish a strong bond with the underlying tooth structure, ensuring longevity and stability. The process often involves taking an impression of the tooth, creating a custom filling in a dental lab, and then bonding it to the tooth with strong adhesives.
With the introduction of digital technology into dentistry, the approach to dental restorations has been further revolutionized. Computer-aided design (CAD) and computer-aided manufacturing (CAM) technologies enable the creation of customized, indirect ceramic restorations that are precisely tailored to the patient’s unique dental anatomy. This digital approach allows for the replication of natural tooth forms, ensuring seamless integration with the patient’s existing dentition.
Zirconia Fillings
Zirconia-based materials represent an exciting development in dental materials. Zirconia is a type of ceramic that is highly durable and biocompatible, making it an excellent choice for dental restorations. Its strength is comparable to that of metals, yet it offers the aesthetic advantage of a tooth-colored material.
One of the main advantages of zirconia is its high resistance to fracture and wear. However, its hardness has raised concerns about its suitability for use on occlusal surfaces, as it may potentially lead to excessive wear or damage to opposing teeth.
The Future of Dental Fillings
Dental fillings reflect the ongoing search for a material that balances health, functionality, and aesthetics. Gold and platinum have it all but lack the aesthetic appeal that is increasingly important in modern dentistry. Until we achieve the perfect filling material, we can be satisfied with the solutions we have today—they are durable, safe, aesthetically pleasing, and can be easily shaped to mimic natural teeth.
The decision on which material to use for your dental restoration is best made in consultation with your dentist. Factors such as the position of the restoration, the structure of the teeth, and bite properties all help your dentist determine which material will serve you best.
