Lithium allergies are rare. However, you may wonder whether dental materials may contain lithium or other materials that may trigger a reaction. If you know you have a sensitivity, ask your dentist how your dental restorations will be processed, especially if you are considering a zirconia crown.
Although zirconia crowns do not contain lithium, the concern comes with a finishing step called glazing. A dental laboratory may apply a thin porcelain glaze to a crown to create a glossy, natural-looking finish. Some glazing materials may contain lithium compounds.
Does Zirconia Always Have a Lithium-Containing Glaze?
Zirconia does not have to be glazed. After the crown is sintered at very high temperatures (around 1450°C), the lab can finish it with either of these methods:
- Apply a glaze (which may or may not contain lithium)
- Hand-polish the zirconia
Hand-polishing creates a smooth, durable surface using only the zirconia. The result can be just as functional and attractive as glazing. Glazing is often used because it is faster and takes less skill than hand-polishing.
If You Have a Dental-Materials Sensitivity, What Should You Ask For?
If you’re concerned about a reaction to dental materials, clear communication is essential.
Take these practical steps to minimize the risk of exposure:
- Consult an advanced cosmetic dentist and ask what materials will be used for your restoration
- Request documentation or certificates for the materials
- Confirm whether the lab will glaze the restoration and if so, with what material
- Ask if the lab can finish your crown with hand-polishing instead of glaze
- Ask for details about the materials your restoration will contain
Working with Your Dentist and Lab
When dental-material sensitivities are a concern, seek an advanced cosmetic dentist for coordination with the dental laboratory to customize your restoration. This may include requesting a lithium-free process or non-glazed zirconia crown.
Dr. David Finley, an accredited cosmetic dentist in Monroe, LA, sponsors this post. Read how Dr. Finley and his team strive to offer some of the best dental care in Monroe.
