The Application of PMMA Compressive Strength in Dentistry.

The compressive strength of PMMA is of great significance in dental applications, which is specifically manifested as follows

Denture base manufacturing: PMMA plays a significant role in denture base manufacturing due to its compressive strength and other properties. During the production process, PMMA in the dough stage is filled into a special dental mold and compressed. Compression molding technology is one of the traditional methods for resin curing, which is convenient to process, familiar to dentists and technicians, and does not require complex and expensive equipment. However, its drawback lies in the fact that it may cause changes in the size of the denture base, affecting the fitting accuracy.

Withstanding chewing pressure: In dental applications, denture bases made of PMMA need to withstand the pressure generated during chewing. Higher compressive strength can ensure that the denture base is less likely to break or deform under pressure, thus guaranteeing the normal use of the denture.

Comparison with other materials: Compared with other dental materials, the compressive strength of PMMA is within a certain range. For instance, some studies have reported that the compressive strength of PMMA ranges from 70 to 120MPa. This level of compressive strength gives PMMA certain advantages in dental applications.