Lithium Disilicate Crowns

A representative brand is E.MAX

Lithium disilicate crowns are dental restorations made from a glass-ceramic material known for its excellent aesthetic qualities and strength. This type of crown is particularly popular for its ability to mimic the natural translucency and color of tooth enamel, making it a highly desirable option for anterior and some posterior restorations.

Advantages of Lithium Disilicate Crowns

• Superior Aesthetics: Lithium disilicate is highly translucent and can be closely matched to the natural color of teeth. This makes it an ideal material for front teeth where appearance is paramount.
• Strength and Durability: Although not as strong as zirconia, lithium disilicate is still quite durable and resistant to fracture. It offers a good balance between strength and aesthetics, suitable for both anterior and some posterior teeth.
• Minimal Tooth Reduction: Lithium disilicate crowns can be fabricated with minimal tooth reduction, preserving more of the natural tooth structure.
• Biocompatibility: This material is biocompatible, reducing the risk of allergic reactions or irritation. It integrates well with the gum tissue, promoting oral health.
• Versatility: Lithium disilicate can be used for various dental restorations, including crowns, veneers, inlays, onlays, and even some bridges. Its versatility makes it a flexible option for different dental needs.

Disadvantages of Lithium Disilicate Crowns

• Less Strength Compared to Zirconia: While strong, lithium disilicate is not as durable as zirconia. It may not be the best choice for patients with heavy bite forces or bruxism (teeth grinding).
• Cost: Lithium disilicate crowns can be more expensive than some other types of dental restorations due to the material cost and the technical expertise required for their fabrication.
• Limited Use for Large Bridges: Due to its lower strength compared to zirconia, lithium disilicate is generally not recommended for large span bridges or restorations in high-stress areas without adequate support.

Summary

Lithium disilicate crowns offer a beautiful and natural-looking solution for dental restorations, particularly suited for visible areas where aesthetics are crucial. While they provide a good balance of strength and beauty, their use may be limited in cases where extreme durability is required.