Views: 0 Author: Site Editor Publish Time: 2025-01-15 Origin: Site
The life of PMMA(polymethyl methacrylate) denture base is indeed closely related to the choice of denture material. Here's a closer look at the relationship:
Life of PMMA denture base
PMMA is one of the most commonly used materials for denture restoration, especially in removable partial denture restoration. However, the PMMA denture base also has some limitations in use, such as insufficient hardness, bending strength, toughness and elastic modulus, which may cause the denture to break easily during use. Therefore, the life of PMMA denture base is limited by the properties of the material itself.
Effect of denture material on life span
The types and properties of denture materials have a direct influence on the life of denture base. Here are some common denture materials and their potential impact on longevity:
Plastic dentures: such as PMMA, although cheap and easy to form, but the wear resistance and strength is relatively poor, may cause the denture base in the process of use is prone to damage and deformation, thereby shortening its life.
Metal dentures: including stainless steel, Nitinol, etc., have high strength and wear resistance, so metal base dentures tend to have a longer service life. But metal dentures may not be as aesthetically pleasing as plastic dentures.
Porcelain denture: beautiful and durable, but the production process is complicated and the cost is high. The hardness and wear resistance of porcelain materials are better, which helps to prolong the life of dentures.
Baking material: Combining the advantages of plastic and porcelain materials, it is lightweight and wear-resistant, so it is also an option to extend the life of the denture.
Methods to improve the life of PMMA denture base
To improve the longevity of PMMA denture bases, researchers and clinicians have taken a number of approaches, including:
Adding reinforcing agents, such as nano-zirconia (ZrNp), can significantly improve the hardness, bending strength and toughness of PMMA denture base, thereby reducing the risk of fracture and extending the service life.
Optimization of preparation process: By adjusting polymerization temperature, time and pressure, the microstructure of PMMA denture base can be improved, and its mechanical properties and durability can be improved.
Sum up
In summary, the life of PMMA denture base is indeed closely related to the choice of denture material. Although PMMA has many advantages, its wear resistance and strength are relatively poor, which can lead to a short denture base life. Therefore, when selecting denture materials, the performance, aesthetics, cost and specific needs of patients should be considered comprehensively to develop the best repair plan. At the same time, the life of PMMA denture base can be extended effectively by adding reinforcing agents and optimizing the preparation process.