What function does a bite block serve in RPD assessment?

A bite block is essential in the assessment phase for removable partial dentures (RPD) as it facilitates the evaluation of vertical dimension and occlusal relationships. The vertical dimension refers to the distance between two opposing arches while the patient is at rest or in an occluded position. By using bite blocks, clinicians can accurately determine the appropriate height of the bite and how the upper and lower arches interact with each other during function. This ensures that the RPD will be comfortable and functional for the patient, promoting proper occlusion and alignment between the maxillary and mandibular arches.

Specifically, by assessing the occlusal relationships through the use of bite blocks, practitioners can make important adjustments that affect the stability and retention of the RPD. This step is crucial for achieving a successful prosthodontic outcome, as it sets the foundation for the rest of the denture fabrication process.