Background: The aim of this systematic review and meta-analysis (SRM) was to assess the postoperative pain (PP) after non-surgical endodontic retreatment (NSER) in a one visit compared to multiple visits. The PICO question ...

Introduction: There have been no time-series studies of air pollution in Peru. Here we evaluate the effect of ambient PM2.5 on emergency room (ER) visits in Lima. Methods :We estimated daily PM2.5 levels at a 1 km2 resolution ...

1. Production of many flowering crops often benefits from elevated pollinator diversity and abundance. Nevertheless, the opposite relationship may arise if bees impair fruit or seed production and/or quality by damaging ...

Since the nineteenth century, Latin America and other poor areas of the world received periodical visits from missions of economic experts. This paper analyzes the picture that Hirschman draws of these money doctors, whose ...

Introduction: This clinical study was conducted to compare the effectiveness of 1-visit versus 2-visit root canal treatment in removing endotoxins and cultivable bacteria from primarily infected root canals. Methods: ...

Aim To evaluate the effectiveness of supplemental photodynamic therapy (PDT) in optimizing the removal of bacteria and endotoxins from primarily infected root canals after one-visit and two-visit treatments. Methodology ...

Princess Margaret visits the Cocoa Research shed at ICTA with students in the background.