There are several types of zirconia crowns that are commonly used in dentistry:
Full-contour zirconia crown: Also known as monolithic zirconia crown, this type of crown is made entirely from zirconia material and does not have any additional layer or coating. It is known for its high strength and durability, making it suitable for posterior (back) teeth where chewing forces are greater.
Layered zirconia crown: This type of crown has a zirconia core covered with layers of porcelain or ceramic material, which gives it a more natural appearance. The zirconia core provides strength and stability, while the porcelain or ceramic layers provide aesthetics and translucency. Layered zirconia crowns are commonly used for anterior (front) teeth where esthetics is a priority.
High-translucent zirconia crown: Also known as HT zirconia crown, this type of crown is made from a specially formulated zirconia material that has higher translucency and a more natural appearance compared to regular zirconia crowns. HT zirconia crowns are ideal for anterior teeth where esthetics is of utmost importance.
Low-translucent zirconia crown: Also known as LT zirconia crown, this type of crown is made from zirconia material with lower translucency, making it more suitable for posterior teeth where esthetics is not a primary concern but strength and durability are important.
Multi-layered zirconia crown: This type of crown has multiple layers of zirconia material with varying translucency, mimicking the natural appearance of teeth. It typically has a more esthetic appearance compared to monolithic zirconia crowns, but may not be as strong.
Translucent zirconia crown: This type of crown is made from a highly translucent zirconia material, which allows for excellent esthetics while still maintaining good strength and durability. Translucent zirconia crowns are often used for anterior teeth where a natural appearance is important.
Customized zirconia crown: This type of crown is fabricated using computer-aided design and computer-aided manufacturing (CAD/CAM) technology to create a customized crown that fits precisely to the patient's tooth preparation. Customized zirconia crowns offer excellent fit, aesthetics, and durability.
It's important to note that the specific types of zirconia crowns available may vary depending on the manufacturer and the dentist's preference. The dentist will consider various factors such as the tooth's location, esthetic requirements, patient's bite force, and budget when selecting the appropriate type of zirconia crown for a patient's specific needs.
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