The mandibular denture is usually more problematic than the maxillary denture owing to the smaller surface area coverage of the foundation tissues. The problem of retention and stability is more pronounced with mandibular denture as compared to the maxillary denture because the covered surface area is approximately half to that in the maxillary arch and presence of palate adding to the area against the mobile tongue on the floor of the mouth in the mandibular arch. A complete mandibular ..