The periodontium

The periodontium (synonym: pariament, the root shell, tooth ligament) - education connective tissue that holds the root of the tooth of the socket in the bone of the jaw and promoting uniform distribution of chewing pressure.
The periodontal is in space (pariamentary slit), bounded on one side by a compact disc dental cells, and on the other, cement tooth root. The periodontal is in close connection with the cement of the root of the tooth and the bone of the jaw, through top hole root - with pulp of the tooth, and at the edges of the cell with the periosteum of the jaw and gum.
The periodontal consists of fibrous bundles (sarievski) fibers, separated from each other layers of loose connective tissue, is penetrated by blood vessels and nerves. In the apex of the root of this loose connective tissue forms clusters containing a small amount of a thin elastic fibers. From the edges of the tooth cell collagen fibers P. located in the horizontal direction and together with a group of fibers connecting among themselves standing next to the teeth form a circular ligament of a tooth. In the lateral parts of the fibrous bundles of fibers have oblique, and in the apex of the root random direction. Between connective tissue fibers periodontal are cellular elements - fibroblasts and histiocytes. In areas P. adjacent to the socket are osteoblasts and near cement root cementoplasty. In periodontal teeth are determined sometimes layered body spherical form, called sementilli.
In addition to these cells in the connective tissue of origin, closer to cement are epithelial education, which are the remains of the epithelium verticalscope vagina. According to some authors, they can serve as a basis for education as benign (cisternole, cysts)and malignant (cancerous) lesions.
Throughout periodontal scattered significant number of nerve fibers and sensitive endings in the form drevovidnye bushes and glomeruli, bearing the touch function.