Thermal characterization by DSC and TGA analyses of PVA hydrogels with organic and sodium MMT

Polyvinyl alcohol (PVA) hydrogels were prepared by a cyclic freezing–thawing technique without any cross-linker agent, using PVA and Maghnite water dispersion with different ratios. The obtained results have shown a higher thermal stability of samples with sodium than with alkylammonium Maghnite. Furthermore, thermal stability was maximum at the lowest investigated Maghnite/PVA ratio, but higher than for the pure PVA at all the investigated compositions. DSC analysis has shown both a low crystal degree and a low heat capacity jump at the glass transition temperature for samples with high Maghnite content. This phase does not seem to depend on the kind of cations, sodium or alkylammonium into the gallery of the clay

Evaluation of influencing factors (age, sex, number of teeth, type and quality of teeth) on the development of dry socket (alveolar osteitis) after tooth pull (clinical study)

A dry socket (alveolar osteitis) is a painful dental condition that sometimes happens after you have a permanent adult tooth pulled. Dry socket is the most common complication following tooth pull, such as the removal of third molars (wisdom teeth). Over-the-counter medications alone won't be enough to treat dry socket pain. Your dentist or oral surgeon can offer treatments to relieve your pain. In this study, we investigated the influential factors (age, sex, number of teeth, type, and quality of teeth) on the formation of the dry socket after tooth pull (as a clinical study) and analyzed each of the factors. This research was conducted in the Russian federation in 2018-2020 as a case study