The bonding ability of low-temperature plasma treatment machine to zirconia can increase the strength by 20 times:
　　 Zirconia ceramics have good mechanical properties and aesthetic properties, and are gradually being applied to the field of stomatology. However, the lack of bonding strength between zirconia and various substrates has always been a problem in clinical applications.
Since zirconia ceramics lack silicon oxide and glass-related components, they cannot be etched by hydrofluoric acid to form a rough surface, nor can they form a chemical bond with silane coupling agents, so traditional cements and bonding methods cannot provide enough for zirconia Bonding strength.

　　Plasma, also called plasma, is a gas-like substance composed of molecules, atoms, and positive and negative charged particles produced after being ionized. It is one of the basic forms of matter existence. It is the fourth state of matter existence in addition to the three states of solid, liquid, and gas. It is also a widespread form of matter existence in the universe.

　　In the industrial field, plasma is often used as a surface modification treatment for materials. The low-temperature plasma temperature is low, close to room temperature, and contains a large number of high-energy charged particles, which can initiate free radicals on the surface of the material, and can introduce a variety of active groups to improve the surface wettability, polarity and adhesion properties of the material. , Will not cause damage to the material.
　　 Low temperature plasma treatment machine treats the surface of zirconia, which can increase the surface energy and wettability. Use low-temperature plasma equipment to treat the surface of zirconia to improve the bonding strength between zirconia and resin cement.
　　Plasma cleaning equipment is small in size, easy to operate, and uses a wide range of gas sources, low in cost, and is suitable for dental clinical applications.
　　 After treating the surface of zirconia with low-temperature plasma generated by Ar and O2 gas, it was found that the carbon element on the surface of zirconia was significantly reduced, while the oxygen element was significantly increased, which in turn increased the surface energy and wettability of zirconia.
　　 After using plasma technology to treat the surface of zirconia, the wettability is increased. Measure the contact angle of the zirconia surface to water. The smaller the contact angle, the better the wettability. After 10sec plasma treatment, the contact angle of the surface of the zirconia specimen was significantly reduced compared with the control group. These results prove that plasma treatment improves the wettability and hydrophilicity of the zirconia surface.
　　 low-temperature plasma treatment machine can significantly increase the hydrophilicity of the zirconia surface and improve the bonding strength of the zirconia and the resin cement without changing the morphology of the zirconia surface. When plasma is used in combination with pretreatment agent and sandblasting, the bonding strength can be further improved.
　　The low-temperature plasma temperature is close to room temperature and contains a large number of high-energy charged particles. It can improve the surface wettability, polarity and bonding properties of the material without causing damage to the material. It has a good application prospect.