Dental zirconia strength introduction

Dental zirconia strength is described as follows:

1. High bending strength:

Zirconia ceramics have very high bending strength. According to publicly released information, the strength of zirconia materials registered in China generally reaches 900MPa, or even higher. For example, it is mentioned in some data that the bending strength of zirconia is about 1200 MPa. This strength is much higher than the 100MPa stipulated in the national dental material standard, showing the superiority of zirconia in dental applications.

2. High fracture toughness:

In addition to bending strength, zirconia also exhibits good fracture toughness. It has been pointed out that its fracture toughness is 9 to 10 MPa·m^(1/2), which means that the zirconia material can better resist the expansion of cracks when impacted by external forces, and improve the service life of the restoration.

3. Strong load capacity:

Zirconia ceramics also have a strong ultimate load capacity, can withstand greater chewing pressure, suitable for the back teeth and other withstand the bite force of the larger area.

In summary, dental zirconia has become a very excellent material in the field of dental restoration due to its high strength, high fracture toughness and strong load capacity. These characteristics make zirconia restorations maintain high stability and durability during use, and meet the needs of patients for long-term use.