Date of Award
Summer 2009
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Dental Hygiene
Program/Concentration
Dental Hygiene
Committee Director
Gayle McCombs
Committee Member
Michele L. Darby
Committee Member
Wayne Hynes
Committee Member
Mounir Laroussi
Call Number for Print
Special Collections LD4331.D46 L46 2009
Abstract
The recent emergence of low temperature atmospheric pressure plasma (LTAPP) technology has led researchers to explore biomedical applications. The present study set out to determine if LTAPP has the ability to inactivate dental caries causing bacteria, specifically Streptococcus mutans. Methods: A total of 90 samples were processed. Seventy-two samples of S. mutans at 1: 100 dilution in BHI broth were exposed to LTAPP for various time intervals (60, 120, 180, 300 seconds). Eighteen control samples were plated but not exposed to LTAPP. Samples were plated on Mi tis salivarius (MS) agar and incubated 48 hours at 37° C. Colony forming units (CFU) were counted and inactivation factor (IF) were determined. Data were analyzed using repeated measures ANOVA at 0.05a significance. Results: Analysis revealed a statistically significant bactericidal effect of LTAPP on S. mutans at time exposures of 60, 120, 180, 300 seconds (p=0.272, p=0.0001, p=0.0001, p=0.0001, respectively). Conclusion: LTAPP had a statistically significant bactericidal effect on S. mutans at all time exposures, as measured by CFU/mL counts and inactivation factors that ranged from 53-95%.
Rights
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DOI
10.25777/3cwr-wy81
Recommended Citation
Lemaster, Margaret F..
"Effects of Low-Temperature Atmospheric Pressure Plasma on Streptococcus Mutans"
(2009). Master of Science (MS), Thesis, Dental Hygiene, Old Dominion University, DOI: 10.25777/3cwr-wy81
https://digitalcommons.odu.edu/dentalhygiene_etds/74