Metagenomic analysis of MWWTP effluent treated via solar photo-Fenton at neutral pH: Effects upon microbial community, priority pathogens, and antibiotic resistance genes.

The effectiveness of advanced technologies on eliminating antibiotic resistant bacteria (ARB) and resistance genes (ARGs) from wastewaters have been recently investigated. Solar photo-Fenton has been proven effective in combating ARB and ARGs from Municipal Wastewater Treatment Plant effluent (MWWTPE). However, most of these studies have relied solely on cultivable methods to assess ARB removal.

Solar photon-Fenton process eliminates free plasmid DNA harboring antimicrobial resistance genes from wastewater.

This work aimed to assess the elimination and inactivation of resistance-conferring plasmids (RCPs) present in suspension in secondary wastewater by solar photo-Fenton as these are important vectors for the dissemination of antimicrobial resistance. Experiments were performed in synthetic secondary wastewater (SWW) and municipal wastewater treatment plant effluent (MWWTPE). Solar photo-Fenton (50 mg L of HO and 30 mg L of Fe) was carried out for 60 min at neutral pH by applying the intermittent iron addition strategy.

Randomized Clinical Trial of ART Class II Restorations Using Two Glass Ionomer Cements: One-Year Follow-Up.

Purpose: The purpose of this study was to compare the survival rate of ART (atraumatic restorative treatment) Class II restorations in primary teeth, performed with glass carbomer cement and a high-viscosity glass ionomer cement, after 12 months.

Methods: One pediatric dentist placed 59 Class II ART restorations in 33 children (eight plus/minus two years old) of both genders. Two calibrated examiners, blinded to the type of material and not involved in the placement, evaluated the restorations at baseline, six, and 12 months.