Alagl AS, et al. - In this cross-sectional study in King Fahad University hospital in Khobar, Eastern Saudi Arabia in 2017, researchers delineated the relationship between gastric and oral H. pylori colonization and also the connection between oral colonization of H. pylori and dental diseases among 120 candidates. They recorded that 82.6% of subjects brushed daily whereas 45.7% had university education. Among them, 34.2% were observed with gastric H. pylori and 5% with oral H. pylori. They reported no significant relationship between the percentage of sites with gingival bleeding, mean periodontal pocket depth (PPD), attachment loss (AL), filled teeth (F), and either gastritis, the presence of oral or gastric H. pylori. They overall suggested no significant association of the presence of gastric and oral H. pylori in cases with good oral hygiene and moderate socioeconomic status with periodontal diseases.