Bulkina Natalia Vyacheslavovna RussiaSaratovSaratov State Medical University, 112, Bolshaya Kazachya Str., Saratov, 410010, Russia Head of the Chair of Therapeutic StomatologyDoctor of medical Sciencesnavo@bk.ru Author's articles In Vivo and in Vitro Studies of the Effect of Chitosan on the Bone Defect Repair Process