The dangling crest is an excessive thickness of the mucous membrane and connective tissue, typically located in the anterior part of the alveolar part, especially on the toothless upper jaw. Occurs with rapid resorption of the alveolar bone. Complicates prosthetics with removable structures due to a violation of the reliability of their fixation. With large volumes and mobility, it can be surgically removed.

The "A" line is a special term denoting the boundaries between the hard and soft sky. It is revealed when pronouncing the sound "A". Serves as a reference point for determining the posterior edge of the palatal base.

An immediate prosthesis is a dental, orthopedic structure designed to restore an even row for a time while a permanent prosthesis is in the manufacturing stage. The name of the prosthesis comes from the word "immediate", which means "immediate" in English. The installation of an immediate prosthesis is carried out after tooth extraction.

Clasp dentures are a type of removable dentures in which a plastic base in the shape of a gum is attached to a metal frame, and artificial teeth are attached to it. The metal arc (clasp) gives the structure special reliability and strength.

 A covering prosthesis is a removable prosthesis on implants.Covering prostheses are indicated for complete or partial loss of teeth (adentia).