What is the correct order of mouth preparations in RPD design?

The correct sequence of mouth preparations in the design and fitting of a removable partial denture (RPD) is crucial for the successful retention, stability, and comfort of the prosthesis. The ideal order involves first addressing the proximal surfaces, which are essential for establishing the primary aspects of fitting the denture effectively within the arch. This ensures that the denture can properly adapt to the natural contours of the dental arch.

Following the proximal surfaces, the next step is to prepare the height of contour. This stage is critical for the retention of the RPD, as the height of contour dictates how the clasp arms will engage with the teeth. Correctly preparing this area ensures that the clasps can provide effective support and stabilization while minimizing any potential chances of dislodgement.

After addressing the height of contour, undercut areas are evaluated. These undercuts are vital for the effective retention of the denture. The proper location and shaping of these areas enhance the clasp's ability to retain the prosthesis securely in place.

Finally, the preparation of rest seats comes last. The rest seats are areas where the RPD will rest on the remaining teeth, providing support and maintaining the correct vertical dimension when in place. Preparing this last allows the clinician to ensure that all