What does it indicate if the PIP paste has been completely removed from the denture base?

If the PIP paste has been completely removed from the denture base, it indicates that there is likely pressure on the soft tissue from the base. The PIP paste is a medium used to assess how well the denture base adapts to the underlying soft tissues of the mouth. During the fitting process, when pressure is applied, the paste will be displaced in areas where there is no contact, signifying optimal fit. Conversely, if the paste is absent in places, it suggests that those areas are experiencing excessive pressure, potentially leading to discomfort for the patient and indicating inadequate support from the base.

Addressing this pressure is crucial, as it can lead to tissue irritation or damage if not corrected. This issue highlights the importance of continually assessing fit during the fabrication and adjustment of removable partial dentures.