What is the name of the bridge that has retainers several teeth away from the pontic?

The bridge that is referred to in the question is known as a spring cantilever bridge. This type of bridge features a pontic (the false tooth) that is supported on one side by a retainer, while the other side is free, allowing it to "spring" or extend out. The retainers are not directly adjacent to the pontic but are instead placed on teeth that are several teeth away, creating a unique configuration that distinguishes it from more traditional bridge designs.

This design is beneficial in certain clinical situations where the adjacent teeth are not suitable for support or when retaining those teeth for future restorative work. The flexibility of the design can accommodate specific functional and aesthetic needs, making spring cantilever bridges a valuable option in restorative dentistry.

In contrast, fixed bridges and conventional bridges typically involve retainers that are directly next to the pontic. A removable partial denture is an entirely different prosthetic option that is designed to be removed by the patient, lacking the fixed nature of the spring cantilever bridge.