This article provides data on the modern methods of Helicobacter pylori diagnostics, an infection of the gastric mucosa and oral mucosa as a potential reservoir of gastric infection and reinfection. A study of determining the presence and Helicobacter pylori degree of the oral cavity by polymerase chain reaction and rapid urease test (RUT) as highly sensitive diagnostic methods has been made. The results of PCR and RUT with oral material were also analyzed.
The persistence of Helicobacter pylori infection was diagnosed by RUT of a gastric biopsy and oral materialby ureaseactivity, and the relationship between the positive reaction of RUT and PCR diagnostics with oral material was revealed.