Figure 1. (A) Clinical extension of posterior palatal seal area (B) Primary impression of maxillary arch (C) Extent of PPS area over the primary impression (D) Anatomical landmarks coloured to show primary and secondary stress bearing areas

From

Revisiting Special Tray Designs for Complete Denture Impression in An Unusual Case of Posterior Palatal Seal Presentation

Khulud AH, Ali MA Alshahrani, Rawah Y Algassm, Zarah S Zameem

American Journal of Medical Case Reports. 2024, 12(8), 110-113 doi:10.12691/ajmcr-12-8-1