Relationship between quality of root canal obturation and periapical lesion in elderly patients: a systematic review.

Objective: The aim of this study was to investigate the relationship between quality of root canal obturations and the presence/absence of periapical lesion in elderly patients.

Methodology: This was a systematic conducted by means analysing studies on the quality of root canal obturations and their relationship with periapical health in elderly patients. The methodological procedures were based on Cochrane.

HIV type 1 diversity from newly diagnosed patients in Santos metropolitan area/Brazil.

HIV-1 from infected subjects has been characterized in order to provide a more accurate view of the strains that are currently found in a given region. In this report, we focused on characterizing the pol gene diversity obtained from newly diagnosed patients in Santos metropolitan area, Brazil. This region is composed of nine cities and an international port.

HIV type 1 pol gene diversity and antiretroviral drug resistance mutations in Santos, Brazil.

HIV-1 antiretroviral drug resistance mutations in subtype B, F, and recombinants B/F in Santos, Brazil were characterized. We studied 83 samples from individuals enrolled at the Brazilian HIV/AIDS programs from Santos. These patients have been treated with multiantiretroviral therapy.