Tripoding is a technique used in prosthodontics to ensure a reproducible and stable positioning of a dental cast on a surveyor. By marking three points on the cast, it allows the clinician to reposition the cast in the exact same orientation every time it is placed on the surveyor. This is crucial for designing and fabricating removable partial dentures, as it maintains consistent analysis of undercuts, guide planes, and path of insertion. Without tripoding, variations in cast orientation could lead to inaccuracies in prosthesis design.

Reference: Contemporary Fixed Prosthodontics, Stephen F. Rosenstiel, Edition 5.