Correlation of Oral Lichen Planus with Helicobacter pylori in Kunming

［Abstract］Objective To investigate the correlation of oral lichen planus（OLP）with Helicobacter pylori （HP）. Methods The combination of polymerase chain reaction（PCR） technology and 14C urea breath test were used to detect the presence of HP in 65 confirmed OLP patient's mouth and stomach. Results HP infection rate in mouth was significantly higher than that in stomach of OLP patients，and the difference was significant（χ2 = 8.795，P < 0.05）. For OLP patients with a history of chronic gastropathy，HP positive results in stomach and mouth were 23 cases and 27 cases， respectively. For OLP patients without a history of chronic gastropathy， HP positive results in stomach and mouth were 11 cases and 20 cases， respectively. Conclusion OLP may have a correlation with HP infection.