What is Dental PMMA?

Dental PMMA, full name Polymethyl Methacrylate, has a wide range of applications in the dental field. Here is a detailed explanation of dental PMMA:

First, basic concepts

PMMA, or polymethyl methacrylate, is a non-toxic and environmentally friendly synthetic polymer, commonly known as plexiglass.

Second, characteristics and applications

Characteristics: PMMA has excellent transparency, weather resistance and mechanical strength. In addition, it also has good biocompatibility and comfort, which makes it a wide range of applications in the dental field.

Applications:

Denture and dental restoration materials: PMMA can be made into denture bases of various shapes and sizes by injection molding or CAD/CAM technology. Because of its good color, easy to form, easy to repair and cheap price, it has been widely used in our country. Especially for the needs of the elderly for the restoration of missing teeth, PMMA has become one of the main materials for the restoration of removable dentures.

Prostheses and external decorations: In addition to being used as a base for dentures, PMMA is also used to make prostheses and external decorations, such as prosthetic arms and legs. This is due to its high strength and durability. At the same time, because PMMA has better transparency and optical properties, it is also used in the manufacture of artificial and prosthetic eyes.

Third, improvement and innovation

In order to improve the properties of PMMA denture base, such as hardness, bending strength, toughness and elastic modulus, researchers have carried out a lot of exploration. Among them, nano-zirconia particles were found to effectively improve the performance of PMMA denture base. Nanometer zirconia has good mechanical properties, biocompatibility and corrosion resistance, so it becomes one of the ideal materials to enhance the physical and chemical properties of PMMA denture resin base.

In summary, dental PMMA is a synthetic polymer with wide application prospects in the dental field. Its excellent properties and constantly improving technology make it an important material for denture restoration and other dental applications.