Are Zirconia Crowns Strong?
Zirconia crowns have gained immense popularity in the dental industry due to their numerous advantages. One of the most frequently asked questions about these crowns is whether they are strong enough to withstand the pressures of everyday chewing and biting. In this article, we will delve into the strength of zirconia crowns and explore why they are considered a reliable choice for dental restorations.
Zirconia crowns are made from a high-strength ceramic material known as zirconium dioxide. This material is renowned for its exceptional strength and durability, making it an ideal choice for dental crowns. The strength of zirconia crowns can be attributed to several factors:
1. High flexural strength: Zirconia crowns have a flexural strength of around 1,000 MPa, which is significantly higher than traditional porcelain-fused-to-metal (PFM) crowns. This high flexural strength ensures that zirconia crowns can withstand the stresses of biting and chewing without fracturing or breaking.
2. Low thermal conductivity: Zirconia crowns have low thermal conductivity, which means they do not conduct heat as efficiently as metal crowns. This property helps to minimize the risk of thermal cycling, which can cause stress and cracking in dental restorations.
3. Excellent biocompatibility: Zirconia is a biocompatible material, meaning it is safe for use in the human body. This property makes zirconia crowns a suitable option for individuals with metal allergies or sensitivities.
4. Natural aesthetics: Zirconia crowns are available in various shades and translucencies, allowing dental professionals to match them closely to the patient’s natural teeth. This natural appearance, combined with their strength, makes zirconia crowns a popular choice for both functional and cosmetic dental restorations.
While zirconia crowns are generally strong and durable, it is essential to maintain good oral hygiene and regular dental check-ups to ensure their longevity. Here are some tips to help prolong the life of your zirconia crowns:
– Brush your teeth at least twice a day with fluoride toothpaste.
– Floss daily to remove food particles and plaque from between your teeth.
– Avoid biting on hard objects, such as ice or pens, to prevent damage to your crowns.
– Visit your dentist regularly for professional cleanings and check-ups.
In conclusion, zirconia crowns are indeed strong and reliable dental restorations. Their high flexural strength, low thermal conductivity, and excellent biocompatibility make them an excellent choice for both functional and cosmetic dental needs. By following proper oral hygiene practices and visiting your dentist regularly, you can ensure that your zirconia crowns remain strong and durable for years to come.
