All-Ceramic Vs Metal: Four Things You Should Know
All-Ceramic vs Metal: Four Things You Should Know
1. Superior esthetics: All-ceramic materials look more natural and life-like. Metal can show greyish shadows.
2. Biocompatibility: All-ceramic is non-allergenic and does not release metal ions.
3. Antibacterial: Some all-ceramic materials have antibacterial surfaces that promote gum health.
4. Different durability: All-ceramic bonds to teeth differently and requires specific bonding techniques to provide support.
All-ceramic restorations are becoming increasingly popular due to their excellent esthetics, biocompatibility and improved durability. However, dentists and patients should be aware of some differences between all-ceramic and metal materials to make the best choice for their treatment.
All-ceramic materials, especially glass ceramics and zirconia, look more translucent and natural similar to natural teeth. While metal restorations inevitably show greyish metal shadows at the gum line, impairing the natural smile appearance.
Traditional metal alloys may trigger allergic reactions or release metal ions harming human body. Modern dental ceramics are proven to be biocompatible and chemically stable without metallic content.
Some all-ceramic materials can inhibit bacterial growth on their surfaces, providing better protection for gum health and tooth preservation. The hard but antibacterial surface is more hygienic and plaque-resistant.
All-ceramic and metal restorations have different durability and bonding properties. All-ceramic materials are more frangible while providing stronger bonding to natural teeth. Additional support from implants or natural teeth requires specific resin bonding and techniques to maximize durability. Proper occlusal adjustment is also critical for long term success of all-ceramic restorations.
In summary, all-ceramic and metal restorations both have superb performance, but in different aspects. Weighing the pros and cons of various properties and individual situation can help dentists and patients select the optimal solution for the best treatment outcomes and experiences.
REFERENCES
Aleah Cho, DDS, MBA, Luz Abrera-Crum and Gary D. Hack, DDS On Feb 18, 2020