In a day, most free end cases I did, included a corrected cast step.
Another one of those things that enhances removable prosthetic treatment that has gotten lost in the digital backwash.

The Altered Cast Technique is a functional impression method used for distal extension partial dentures to improve stability and support by recording the residual ridge in its functional form. By creating a corrected master cast that accurately reflects how the tissues will behave under function, this technique helps to achieve a better fit, more even stress distribution, and increased patient comfort. It is most commonly applied to the mandibular arch, as the maxillary tissue has less form tissue for support.

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