The aim of the present study was to assess the antimicrobial activity of plasma jet with helium (He) flowing through 3% hydrogen peroxide in root canals infected with . A total of 42 single-rooted anterior teeth were prepared, sterilized, inoculated with an suspension and incubated for 7 days. Next, the teeth were randomly divided into six experimental groups (including groups treated by plasma jet with or without He for different time durations) and one control group treated without plasma. The number of surviving bacteria in each canal was determined by counting the colony forming units (CFU)/ml on nutrient agar plates. The results indicated that statistically significant reduction in CFU/ml (P<0.005) existed for all treatment groups relative to the control group. The greatest reductions in CFU/ml were observed for Group 3 (7.027 log unit reduction) and Group 2 (6.237 log unit reduction), which were treated by plasma jet sterilization with He flowing through 3% hydrogen peroxide for 4 min or for 2 min, respectively. In addition, the reduction in Group 3 was significantly greater compared with that in Group 2 or in the groups treated by plasma jet sterilization without He flowing through 3% hydrogen peroxide for 1, 2 or 4 min. In conclusion, plasma jet with or without He flowing through 3% hydrogen peroxide can effectively sterilized root canals infected with and should be considered as an alternative method for root canal disinfection in endodontic treatments.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5103749 | PMC |
| http://dx.doi.org/10.3892/etm.2016.3726 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gas-Thermal Spraying Synthesis of β-GaO Luminescent Ceramics.
Materials (Basel)
December 2024
Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia.
This paper presents the initial results of the synthesis of β-GaO luminescent ceramics via plasma gas-thermal spraying synthesis, where low-temperature plasma of an argon and nitrogen mixture was employed. A direct current electric arc generator of high-enthalpy plasma jet with a self-aligning arc length and an expanding channel of an output electrode served as a plasma source. The feedstock material consisted of a polydisperse powder of monocrystalline β-GaO with particle sizes ranging from 5 to 50 μm.
View Article and Find Full Text PDFEffect of cold plasma and ultrasonic pretreatment on drying characteristics and nutritional quality of vacuum freeze-dried kiwifruit crisps.
Ultrason Sonochem
December 2024
School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, China; Key Laboratory for Agriculture Products Processing of Anhui Province, Hefei, Anhui, China.
The effect of ultrasound and plasma pretreatment on freeze-dried kiwifruit crisps was investigated in this study. Using unpretreated kiwifruit as a control group (CG), the effects of ultrasound (US), plasma-activated water (PAW), ultrasound combined with plasma-activated water (UPAW), plasma-jet (PJ), and ultrasound combined with plasma-jet (UPJ) on the quality of vacuum freeze-dried kiwifruit were investigated. The results showed that all the pretreatments could change the microstructure of the crisps.
View Article and Find Full Text PDFJets Downstream of Collisionless Shocks: Recent Discoveries and Challenges.
Space Sci Rev
December 2024
Space Research Institute, Austrian Academy of Sciences, Schmiedlstraße 6, Graz, 8042 Austria.
Plasma flows with enhanced dynamic pressure, known as magnetosheath jets, are often found downstream of collisionless shocks. As they propagate through the magnetosheath, they interact with the surrounding plasma, shaping its properties, and potentially becoming geoeffective upon reaching the magnetopause. In recent years (since 2016), new research has produced vital results that have significantly enhanced our understanding on many aspects of jets.
View Article and Find Full Text PDFAC Plasmas Directly Excited in Liquid-Phase Hydrocarbons for H and Unsaturated C Hydrocarbon Production.
J Am Chem Soc
January 2025
Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States.
AC plasmas directly excited within liquid hydrocarbons were investigated for the production of hydrogen and unsaturated C hydrocarbon in a recirculating liquid "jet" flow configuration. Arc discharges were excited at two different frequencies (60 Hz and 17.3 kHz) in C-C hydrocarbons (hexane, cyclohexane, benzene, toluene, and xylene) to produce H, CH, CH, and CH, along with liquid and solid carbon byproducts.
View Article and Find Full Text PDFThe Potential of a Novel Cold Atmospheric Plasma Jet as a Feasible Therapeutic Strategy for Gingivitis-A Cell-Based Study.
Cells
November 2024
Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Spl. Independentei, 050657 Bucharest, Romania.
Due to its antimicrobial, anti-inflammatory and pro-healing properties, the application of cold atmospheric plasma (CAP) has emerged as a new and promising therapeutic strategy in various fields of medicine, including general medicine and dentistry. In this light, the aim of the present study was to investigate the effects of a homemade plasma jet on the cellular behaviour of two important cell types involved in gingivitis, namely gingival fibroblasts (HGF-1 cell line) and macrophages (RAW 264.7 cell line), by the direct application of CAP in different experimental conditions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!