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Full-Text Articles in Medicine and Health Sciences
Effects Of Low Temperature Atmospheric Pressure Plasma On Tooth Whitening, Denise Michelle Claiborne
Effects Of Low Temperature Atmospheric Pressure Plasma On Tooth Whitening, Denise Michelle Claiborne
Dental Hygiene Theses & Dissertations
Low temperature atmospheric pressure plasma (LT APP) is a novel science being studied as an alternative light source to enhance tooth whitening. The safety and effectiveness of LTAPP has not been established therefore; the purpose of this study was to determine if LTAPP along with H2O2 gel would safely and effectively accelerate the tooth whitening process, in terms of lightness and temperature. Two treatment groups were utilized: 36% H2O2 gel only and 36% H2O2 gel plus LT APP. Control group received no treatment. Experimental teeth were exposed to LT APP at …
Bactericidal Effects Of Low Temperature Atmospheric Pressure Plasma On Porphyromonas Gingivalis, Arwa Mahasneh
Bactericidal Effects Of Low Temperature Atmospheric Pressure Plasma On Porphyromonas Gingivalis, Arwa Mahasneh
Dental Hygiene Theses & Dissertations
Purpose: The biomedical application of low temperature atmospheric pressure plasma (LTAPP) is a collaborative interest for engineering, medical, dental and biological researchers. This laboratory study tested whether LTAPP can limit growth of Porphyromonas gingivalis, a periodontal pathogen strongly associated with periodontal disease, disease progression, and refractory periodontitis. Methods: After extensive pilot trials, the study consisted of 24 agar plate samples of P. gingivalis- 20 samples were exposed to LTAPP at 5, 7, 9 and 10 minutes and 4 control samples were exposed to helium gas only. Immediately after exposures, the samples were incubated anaerobically for 72 hour at …
Bactericidal Effects Of Cold Plasma Technology On Geobacillus Stearothermophilus And Bacillus Cereus Microorganisms, Angela Dawn Morris
Bactericidal Effects Of Cold Plasma Technology On Geobacillus Stearothermophilus And Bacillus Cereus Microorganisms, Angela Dawn Morris
Dental Hygiene Theses & Dissertations
Non-equilibrium atmospheric pressure plasma, also known as cold plasma, is a state of matter that consists of a mix of neutral and charged particles. Plasma generates chemically reactive species and ultraviolet radiation making them useful in decontamination applications (Kong & Laroussi, 2003). Research regarding the inactivation of gram-positive bacteria, such as Bacillus atrophaeus, by cold plasma has been studied by Laroussi et al. (2003); however, there is limited research regarding the germicidal effectiveness of cold plasma on the microorganisms Geobacillus stearothermophilus and Bacillus cereus. The purpose of this study was to determine if cold plasma technology inactivates heat …