Denture base or PMMA material which is more durable?

When comparing the durability of denture base and PMMA material, we need to be clear: denture base is a broader concept that can be made from a variety of materials, including metals, ceramics, plastics, etc. PMMA(polymethyl methacrylate) is a commonly used plastic material for making denture base.

Durability of denture base

The durability of denture bases depends on many factors such as the material, design, manufacturing process, and the way patients use and maintain them. In general, metal bases such as pure titanium or cobalt-chromium alloy bases have high durability because of their high strength, high hardness and good corrosion resistance. However, metal bases can be relatively heavy and less aesthetically pleasing.

Durability of PMMA materials

PMMA material has a wide range of applications in denture fabrication, especially in the fabrication of denture base. It is favored for its high transparency, good processing properties and relatively low cost. However, PMMA materials have some limitations in terms of durability. For example, its hardness is relatively low, wear resistance is poor, and wear and discoloration may occur after long-term use. In addition, the toughness of PMMA material is also insufficient, and sometimes problems such as fast denture wear and easy cracking occur.

Comprehensive comparison

Metal bases are generally superior to PMMA bases in terms of hardness, wear resistance and toughness.

In terms of aesthetics, the PMMA base is more advantageous due to its high transparency.

In terms of cost, PMMA bases are generally more affordable than metal bases.

Therefore, from a durability point of view, metal bases such as pure titanium or cobalt-chromium are generally more durable than PMMA bases. However, PMMA base is also a viable option for patients who are aesthetically and economically conscious. In practical applications, the doctor will recommend the most suitable denture base material according to the specific situation and needs of the patient.

Please note that the durability of dentures is also affected by how patients use and maintain them. Therefore, no matter which material of denture base is chosen, patients should follow the doctor's recommendations for correct use and maintenance to extend the service life of dentures.