Epidemiology, etiology, and prevention of periodontal diseases : report of a WHO scientific group, meeting held in Moscow from 23 November to 2 December 1977
60 Pages, illustrations, tables; 20 cm. - (World Health Organization technical report series ; no. 621 ) Content notes : 1. Introduction -- 2. Epidemiology and etiology -- 3. Prevention and public health -- 4. Assessment of periodontal status and treatment needs -- 5. Recommendations for research -- 6. Conclusions -- 7. General recommendations -- Annexes.
