Efficiency of dental caries prevention with the use of polymer-based toothpastes modified by the electromagnetic field

The most important problems of modern dentistry cover not only the early diagnosis but also prevention of dental caries, including the one based on the use of various hygienic products and therapeutic agents. Normally, the processes of re- and demineralization in the oral cavity are in a state of dynamic. However, in the presence of cariogenic factors, the balance is shifted towards demineralization. In the event of initial caries, enamel remineralization is possible only to a certain extent, and specifically, for a reversible degree of carious lesion. There was an idea about structural changes in polymer-based consumable dental materials including toothpastes. The purpose of the study is to increase the efficiency of dental caries prevention based on the activation of metabolic processes in dental hard tissues with the use of R.O.C.S. Active Calcium toothpastes (Russian-Swiss “DRC-Group” company) modified by an electromagnetic field. As a result of the experimental part of the study, certain changes in the properties of the R.O.C.S. Active Calcium toothpastes under the electromagnetic field influence including microstructural transformation of the toothpaste (an increase in the size of the polymer matrix particles and a decrease in the distance between them confirmed by the electron microscopy findings), confirmed by the transmission electron microscopy results. The investigations with the help of X-ray microanalysis made it possible to clarify the chemical composition of the surface layer of the tooth enamel, for the first time to reveal in detail the concentration of micro- and macroelements of organic and inorganic nature, to trace the changes occurring under controlled tooth cleaning with the R.O.C.S. Active Calcium toothpaste treated with an electromagnetic field. The obtained results promote the further studies of laws in change of physical and mechanical properties of treatment-and-prophylactic means under the electromagnetic field influence in respect of dental caries preventive maintenance efficiency increase. © 2018, European Association for Predictive, Preventive and Personalised Medicine (EPMA).Ministry of Education and Science of the Russian Federation: 1, 1, 1, 1 Ministry of Education and Science of the Russian Federation: 1, 1, 1, 1The study was approved by the local committee for ethics in research of State Funded Educational Institution of Higher Education BVoronezh N.N. Burdenko State Medical University^ of the Ministry of Health of the Russian Federation (Protocol No. 1, February 25, 2016) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The written informed consent was obtained from all the patients. The participants were randomly selected from a pool of patients (18–35 years old) who had sought dental treatment.Ethical approval All the patients were informed about the purposes of the study and consequently have signed their Bconsent of the patient.^ All investigations conformed to the principles outlined in the Declaration of Helsinki and were performed with permission by the responsible Ethics Committee of State Funded Educational Institution of Higher Education BVoronezh N.N. Burdenko State Medical University^ of the Ministry of Health of the Russian Federation (Protocol No. 1, February 25, 2016)

Diode laser for harvesting de-epithelialized palatal graft in the treatment of gingival recession defects: A randomized clinical trial

PubMedID: 26660000Aims The aim of present randomized controlled clinical study was to evaluate the effects of the use of diode laser for graft harvesting and palatal wound irradiation on post-operative morbidity and root coverage outcomes after a coronally advanced flap (CAF) with de-epithelialized gingival grafts (DGG). Methods Fifty-two patients with isolated recessions were treated. The CTG resulted from the de-epithelialization of a free gingival graft (FGG) with blade (control group:DGG-B) or diode laser (DL) (test group:DGG-L). The DL was used to de-epithelialize the outer part of the FGG and photo-biostimulate the palatal wound area. Post-operative morbidity was evaluated by using Oral Health-related Quality of Life (OHQoL) and Visual Analogue Scale-discomfort (VAS). Root coverage outcomes were also evaluated 6 months after operation. Results Statistically significant differences were found for OHQoL (p = 0.0001) and VAS (p = 0.0001) at the 7th day post-operatively favouring test sites. Root coverage results did not show a statistically significant difference. Conclusions While both techniques were effective with regard to root coverage at 6 months, the DGG-L technique decreased post-operative morbidity associated with palatal donor-site surgery. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd