Aim: this article describes the use of chloroquine as an antimalarial agent with potential antivirotic indications for COVID-19 infections. Methods: On line searches and gray literature have been used in the construction of this articles, whose database include PUBMED Central, BVS/BIREME, Web of Science, Science Direct, Higher Level Personnel Improvement Coordinator (CAPES), Periodic Door (Portal de Periódicos da CAPES, The Cochrane Library and PROSPERO). Results: chloroquine and hydroxychloroquine has shown appropriate clinical reports when associated with the antibiotic Azithromycin. It has been authorized for the clinical treatment of grave acute forms of COVID infections by countries like Brazil and USA. Conclusions: Chloroquine seems to have potential antivirotic properties that may be useful in the treatment of the grave acute forms of COVID-19 associated with Azithromycin. Nevertheless, Its indication must include ECG monitoring due to the risk of cardiac QT prolongation able to cause sudden deaths.

Background: COVID-19 has emerged as a pandemic that spread throughout the world in less than 6 months, leaving hundred thousand deaths behind. Surprisingly, old drug arsenal has now been applied as an option of treatment. Objective: The aim of this article was to accomplish a literature review concerning the antiparasitic chloroquine, ivermectin, nitazoxanide; as well as glucocorticoids as possible therapeutic agents to be applied in patients with COVID-19 in Brazilian hospitals. Methodology: clinical evidence of COVID-infected patients and literature consultation have been used for the construction of this article. On line searches and gray literature have also been consulted, whose database include PUBMED Central, BVS/BIREME, Web of Science, Science Direct, Higher Level Personnel Improvement Coordinator (CAPES), Periodic Door (Portal de Periódicos da CAPES, The Cochrane Library and PROSPERO). Results: chloroquine, ivermectin and nitazoxanide present antiviral characteristics to support their usage in phase 1 of COVID-19 symptoms. Glucocorticoids such as methylprednisolone and dexamethasone seem to be more efficient in patients with pulmonary symptoms such as those in phase 2B and 3. Conclusion: According to the articles raised in this review, antiparasitic agents are promising for patients with COVID-19 in the very beginning of the symptoms. Methylprednisolone and dexamethasone are best indicated for hospitalized patients with pulmonary commitment.

Background: Endodontic Regenerative Procedures, especially pulp revascularization therapy, have become a real option for the treatment for immature permanent teeth with open apices. This sort of approach has saved many teeth that otherwise would have been extracted. The technique is simple and effective, and can be accomplished by any odontologist. Objective: This article aimed to make a literature review to give support for a case report of an Endodontic Regenerative Procedure of a twelve-year-old male patient with immature open apice of tooth 21. Methodology: Articles were researched concerning pulp revascularization to reach root end formation. On line searches were accomplished, whose database include BVS/BIREME, Web of Science, PUBMED Central, Science Direct, Higher Level Personnel Improvement Coordinator (CAPES), The Cochrane Library, and PROSPERO). Results: the articles researched showed that Endodontic Regenerative Procedures are efficient in stimulating root end formation. The case report described matched the results offered by the articles, showing an immature open apice tooth that had its root end completely formed after pulp revascularization therapy. Conclusion: Pulp revascularization therapy is an efficient and practical treatment for immature teeth with open apices.

Objective: to accomplish a literature review to research the clinical characteristics of azythromycin, and its indications and associations for SARS-CoV-2 infections.  Methodology: Electronic searches were carried out on PUBMED Central, BVS/BIREME, Web of Science and The Cochrane Library with the aid of key-words. Results: Azithromycin is a secure antibiotic belonging to the macrolide class, effective for a vast number of infections, especially respiratory diseases. It seems to have viral indirect activity due to its being capable of altering the cell machinery, including mitochondrias, for changing the normal functioning of mitochondrial ribosomes. Conclusion: It is uncertain whether azithromycin is eligible for the treatment of virus infections in general and especially for COVID-19. Its combination with hydroxychloroquine, however, should be better researched in order to answer if it can be applied as a clinical approach for this matter.