Introduction: Helicobacter pylori favors the formation of gastric ulcers, gastric carcinoma, MALT lymphoma, and is related to costly treatment, bacterial resistance and other adverse effects. Objective:To analyze the literature on the importance of H. pylori in dentistry, particularly its epidemiology, diagnostic methods, oral manifestations, treatment and the use of probiotics. Methodology: Current literature review carried out using the following databases: Pubmed and SCOPUS. The keywords used were Helicobacter pylori, diagnosis, treatment, dentistry, probiotics. Results: Epidemiology: It is up to 90% in developing countries, while the annual recurrence rate is much higher than in developed countries. Recurrence may occur by recrudescence or reinfection. Diagnosis: Methods include urea breath test, stool antigen test, serology and molecular methods. The preferred method is the rapid urease test of human biopsies. Oral manifestations: It has been associated with oral pathologies, including gingivitis/periodontal disease, aphthous stomatitis and oral cancer. Treatment: Standard triple therapy combines amoxicillin (1g twice daily) and clarithromycin (500mg twice daily) or metronidazole (500mg twice daily). Use of probiotics: significantly helps in repairing the intestinal microbiota affected by antibiotics, helping to decrease side effects. Conclusion: H. pylori infection represents a risk factor for the organism and antibiotic resistance complicates its eradication, an early diagnosis should be made to prevent adverse effects.

Universitas Odontologica presents its second dossier of 2020 on, “Challenges and Alternatives of Latin American Dental Education,” which is the result of a call for manuscript released among different professional and academic networks throughout the region. The dossier includes six articles mainly on use of teaching-and-learning technologies and the impact of the COVID-19 pandemic on dental education, as well as academic repetition and learning factors.

Periodontal disease is a chronic disease that develops through multiple factors. It is directly associated with the accumulation of biofilm. It is characterized by progressive destruction of the supporting tissues of the teeth. Clinically it can be diagnosed through parameters that are gingival inflammation, loss of clinical attachment, increased probing depth, bleeding on probing, and dental mobility. The figures that have been found are around 1.1 billion cases of severe periodontal disease, in 2019. These amounts are equivalent to 15% of the world population. Radio graphically, vertical, horizontal, or both bone loss may be seen. Periodontal therapy is based on five phases: systemic, hygienic, surgical, restorative and maintenance. Currently, adjuvants to periodontal therapy have been found with favorable results. Oral probiotics, the Lactobacillus strain specifically, have been studied in non-surgical periodontal therapy. It has been shown that in patients with gingivitis plus the use of probiotics and periodontal mechanical therapy, patients have a reduction in the previously mentioned clinical parameters. On the other hand, there are also prebiotics that are non-pathogenic bacteria, their function is to improve the health of the host. This is how systemic homeostasis through vitamins and food, proposes a lower risk of developing periodontal disease.