Dutch Society of Periodontology.

The Dutch Society of Periodontology held its 40th Anniversary Congress in Amsterdam, the Netherlands during April 22-23, 1976. More than 400 participants from 15 countries attended it. The themes of the conference were present knowledge on immunology and periodontal disease, and the future of periodontal therapy, possibilities and limitations. Research and clinical papers were given by Dutch and British lecturers. The society extends a cordial invitation to attend the scientific program of its next annual meeting to be held in Amsterdam in March 1977.