Background & objectives: Dental caries is one of the most common chronic diseases and affected by many determinants identified as social inequalities. So, this study explored how social determinants of health had impacts on dental health in school children of Hamadan. Methods: This cross-sectional study was conducted based on data related to the examination of 14858 students in Hamadan in 2016...

Background: Chronic opioid use is a major public health problem with significant morbidity. The aim of this study was to investigate factors associated with sustained remission among a sample of Iranian chronic opioid users in Shiraz, Iran.Methods: This was a cross-sectional study to evaluate sustained remission among chronic opiate users aged 20-60 years. Participants included two groups: 365 ...

In this paper, we will present a modification of the preconditioned AOR-type method for solving the linear system. A theorem is given to show the convergence rate of modification of the preconditioned AOR methods that can be enlarged than the convergence AOR method.