The concept of "buffer zones" was introduced by E.I. Gavrilov in 1962. This term defines areas of the mucous membrane of the hard palate with a dense network of blood vessels, which consequently have vertical pliability. The mucous membrane covering the alveolar ridge and the area of the palatine suture has minimal buffering properties. The buffering properties of the mucous membrane of the hard palate are taken into account when distributing masticatory pressure along the prosthetic bed. Using them, it is possible to unload the mucous membrane of the alveolar process, thus preventing its premature atrophy.