Which of the following is NOT a main component of a Removable Partial Denture?

A Removable Partial Denture (RPD) is composed of several key components that work together to support the denture and ensure its functionality. The main components of an RPD include the major connector, minor connectors, and the base. Each of these elements serves a specific purpose:

The major connector serves as the primary structure that unites the different parts of the denture, providing stability and support. Minor connectors link the major connector to the other components, such as clasps and the denture base, facilitating the transfer of forces and ensuring proper fit. The base, typically made from acrylic, provides a surface for the artificial teeth and assists in the overall retention and aesthetics of the denture.

In contrast, fixed attachments are not standard components of a removable partial denture. Fixed attachments generally refer to components used in fixed prosthodontics, such as crowns or bridges, where the devices are permanently affixed to the natural teeth or implants. Thus, the correct answer identifies fixed attachments as not being part of the main components of an RPD, distinguishing them from essential elements involved in removable partial dentures.