V. A. Kozlov
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Kozlov Vladimir А., DSc, Professor of the maxillofacial surgery Department and surgical dentistry named after A.A.Limberg, the Russian Academy of Sciences corresponding member, Honored Doctor of the Russian Federation

Saint Petersburg

E. A. Satygo
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Satygo Elena А., DSc, Professor, Head of the Department of Pediatric Dentistry

Saint Petersburg

S. G. Shakhaev
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Shakhaev Said G., orthopaedic doctor, postgraduate stu- dent of the Department of Pediatric Dentistry

Saint Petersburg