[Collagen as a basic element of the periodontium: immunohistochemical aspects in the human and animals. 2. Cementum and periodontal ligament].

Immunohistochemical knowledge of the distribution of the collagen types in the cementum and periodontal ligament were reported in this paper. Because of the different localization of each of these collagenous components in the two periodontal tissues its function in the matrix was explored. It was also possible to clarify the role of collagen in healthy periodontium as well as in regeneration and wound healing mechanisms.