[Pathology of the bone pocket].

Inflammatory periodontal destruction includes periodontal bone destruction. In addition to etiologic factors which contribute to the formation of gingival pockets, cell-mediated immune reactions apparently play a special role in osteoclastic processes. Apart from coincidental events, the form of osteoclasia is influenced in the beginning by the form and position of the tooth. Vertical osteoclasia, a variant form, is more frequently observed in connection with juvenile periodontitis. Occlusal periodontal trauma and general primary diseases may possibly also influence the pattern of periodontal bone destruction.