It is difficult to definitively say which type of crown is better, as both zirconia and ceramic crowns have their own unique benefits and drawbacks. Here are some points to consider when deciding between zirconia and ceramic crowns:

• Strength: Zirconia crowns are known for their strength and durability, as they are made from a highly durable and strong ceramic material. Ceramic crowns, on the other hand, are generally not as strong as zirconia crowns and may be more prone to chipping or breaking.
• Appearance: Ceramic crowns are often preferred for their natural-looking appearance, as they can be made to closely match the color and translucency of natural teeth. Zirconia crowns, while also natural-looking, may not be as aesthetically pleasing as ceramic crowns in some cases.
• Wear: Both zirconia and ceramic crowns are prone to wear over time, but zirconia crowns may be less prone to wear due to their strength and durability.

Ultimately, the decision between a zirconia or ceramic crown will depend on the specific needs and preferences of the patient and the recommendations of their dentist. It is important to discuss all of the options with a dental professional before making a decision.