What is the main role of clasp arms in a removable partial denture?

The main role of clasp arms in a removable partial denture is to enhance retention of the denture. Clasp arms are designed to engage the abutment teeth, providing an anchor that helps keep the prosthesis securely in place during function. This engagement creates a combination of mechanical retention and balancing forces to limit movement of the denture when the patient is chewing or speaking.

While clasp arms may have some secondary roles, such as contributing to stabilization against lateral movement or providing slight support, their primary function is to ensure that the partial denture remains seated properly in the oral cavity. The effective retention provided by clasp arms is crucial for patient comfort and the overall success of the removable partial denture.