Hydrogel-Inducing Graphene-Oxide-Derived Core-Shell Fiber Composite for Antibacterial Wound Dressing.

The study reveals the polymer-crosslinker interactions and functionality of hydrophilic nanofibers for antibacterial wound coatings. Coaxial electrospinning leverages a drug encapsulation protocol for a core-shell fiber composite with a core derived from polyvinyl alcohol and polyethylene glycol with amorphous silica (PVA-PEG-SiO), and a shell originating from polyvinyl alcohol and graphene oxide (PVA-GO). Crosslinking with GO and SiO initiates the hydrogel transition for the fiber composite upon contact with moisture, which aims to optimize the drug release.

[The application of scanning electronic microscopy and bio-reactor for evaluating eradication of microbial bio-film of root channels under endodontic treatment.].

According to the results of endodontic treatment of chronic forms of odontotis and periodontitis the rate of complications continues to be high - from 32% to 50% that os related to characteristics of microbial bio-film. The studies of this object in root canals and methods of eradication of bio-films are at their initial stage. The purpose of study is to provide a laboratory substantiation and evaluation of efficacy of complex effect of ultrasound processing and photo-activating disinfection of root of tooth in case of chronic forms of odontotis and periodontitis and also evaluation of endodontic treatment using scanning electronic microscopy.

[Control of primary adhesion of microorganisms and formation of biofilms on stomatological materials used for transdental implantation in dental stabilizing operations.].

Transdental implantation is an effective way to restore the lost biomechanical properties of a resected or amputated tooth. The choice of structural materials for the implant is the most important stage of treatment, in relation to the adhesion of aggressive microbiota to them. To characterize the adhesion of microorganisms of periodontopathogenic and cariogenic groups in vitro to experimental samples of zirconium dioxide and titanium alloys using cultural and electronic microscopic methods of adhesion evaluation as the first stage of biofilm formation.

[The use of self-adapting system files (SAF) for controlling microbial biofilms of root canals in the treatment of apical periodontitis].

The aim of this study was to conduct a clinical and laboratory study and evaluate the effectiveness of endodontic root canal treatment using a self-adapting files system (SAF) in the complex treatment of patients with chronic apical periodontitis. 3% sodium hypochlorite solution was used as irrigation agent in all groups which included 20 patients treated with conventional manual tools, 21 patients receiving treatment with ultrasonic activation of irrigant and 26 patients treated with SAF system. Root canal biofilm structure was studied by scanning electron microscopy (SEM) using a Quantum 3D microscope (USA).

[EXPERIMENTAL RATIONALE OF ENDODONTIC THERAPY OF CHRONIC FORMS OF PULPITIS- AND PERIODONTITIS USING PHOTO-ACTIVATED DISINFECTION AND ULTRASOUND TREATMENT].

Aim: Laboratory rationale of application of a complex effect of ultrasound treatment, and photo-activated disinfection in experiments in vitro using strains of anaerobic and microaerophilic microorganisms isolated from patients with chronic forms of pulpitis and periodontitis.

Materials And Methods: Microbiologic study of root canal was carried out using a bacteriologic method (2 species of obligatory-anaerobic and 2 -microaerophilic streptococci). Evaluation of the effect of ultrasound treatment in a complexwith a system of photo-activated disinfection on microflora of root canal was carried out using a bioreactor.