Synthesis and characterization of the dental adhesive monomer 10-MDP.

Many studies have demonstrated the excellent performance of 10-MDP (10-methacryloyloxydecyl dihydrogen phosphate) as a functional monomer for dental adhesive materials and as a primer for ceramic surfaces. Although adhesive performance is affected by the purity level of 10-MDP, this parameter is rarely described, and possible byproducts have been suggested in the literature, but have not been identified to date. The present study aims to present an accessible 10-MDP synthesis strategy with easily handled reagents and address the characterization challenges, especially in identifying byproducts.

[Trends in drugs usage for COVID-19 during the first wave of the pandemic in a hospital in Lima, Peru].

This study aimed to evaluate the pharmacological trends in patients with COVID-19 from a hospital in Peru during the first wave of the pandemic. Retrospective study conducted between April and September 2020. The medical records of patients hospitalized for COVID-19 pneumonia at the Dos de Mayo National Hospital (Lima, Peru) were reviewed.