[Use of freeze-dried demineralized bone in periodontal therapy].

A procedure for the use of freeze-dried demineralised bone in periodontal surgery is described. Reference is made to other reconstructive procedures, and comparisons with these are made. Although there are limitations for its use, it is concluded that the method is a useful tool in the treatment for periodontitis. It approaches the ideal aim of periodontal therapy because it combines the treatment of the disease as well as induces a regeneration of the periodontium.