A.P. SOROKIN, L. P.GERASIMOVA Bashkir State Medical University Sorokin Alexander Petrovich graduate student at the Department of Therapeutic Dentistry  with a course of the institute of postgraduate education 3 Lenina Str., Ufa 450000 tel. 8-927-234-25-19, e- mail: 89272342519@rambler.ru The article presents the results of the optical densitometry of the periapical teeth area according to radiovisiography […]