Journal of Research in Dental and Maxillofacial Sciences
J Res Dent Maxillofac Sci
Medical Sciences
http://jrdms.dentaliau.ac.ir
1
admin
2383-2754
10.61186/jrdms
en
jalali
1399
2
1
gregorian
2020
5
1
5
2
online
1
fulltext
en
Low-Pressure Radiofrequency Cold Plasma for Disinfection of Gutta-Percha Cones
Oral medicine
Oral medicine
Original article
Original article
<p style="text-align: justify;"><strong>Background and Aim</strong><strong>:</strong> Different methods have been proposed for rapid disinfection of gutta-percha (GP) cones. This study aimed to assess the efficacy of low-pressure radiofrequency cold plasma (LRFCP) in disinfection of GP cones compared to three chemical disinfectants.<br>
<strong>Materials and Methods:</strong> Seventy GP cones were allocated to seven groups of 10 each. All samples were initially sterilized with ethylene oxide (EO) and subsequently inoculated with Staphylococcus aureus (S. aureus), except for the negative control group (n=10). In the experimental groups (n=50), samples were subjected to one-minute chemical disinfection [5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), and 10% Deconex® 53 PLUS) or LRFCP (30-second or one-minute). The effectiveness of disinfection was evaluated by counting the colony-forming units (CFUs). Data were analyzed using Kruskal-Wallis test (P=0.05).<br>
<strong>Results:</strong> S. aureus was completely eradicated in all groups. LRFCP and 5.25% NaOCl were the most effective agents in disinfection of GP cones. In addition, 2% CHX was significantly weaker than the other agents (P<0.05). Deconex® 53 PLUS (10%) was more potent than 2% CHX; however, the difference between 10% Deconex® 53 PLUS and other experimental groups was not significant (P>0.05). <br>
<strong>Conclusion:</strong> LRFCP can be assumed as a noninvasive and efficient method for disinfection of GP cones.</p>
Disinfection, Gutta-Percha, Cold Plasma, Staphylococcus aureus
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http://jrdms.dentaliau.ac.ir/browse.php?a_code=A-10-778-1&slc_lang=en&sid=1
M
Asnaashari
Mo_Asna12@yahoo.com
10031947532846008803
10031947532846008803
No
Professor, Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
A
Meyari
Atieh.Meyari@gmail.com
10031947532846008804
10031947532846008804
No
Postgraduate Student, Department of Restorative and Cosmetic Dentistry,Dental Faculty, Tehran Medical Sciences
R
Hajrezai
Reihaneh_rezai@yahoo.com
10031947532846008805
10031947532846008805
No
Assistant Professor, Orthodontics Dept, Dental Faculty, Tehran Medical Sciences
P
Paymanpour
Payam_Paymanpour@yahoo.com
10031947532846008806
10031947532846008806
Yes
Assistant Professor, Department of Endodontics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
N
Behrooz
Narges.behrooz1986@gmail.com
10031947532846008807
10031947532846008807
No
Postgraduate Student, Department of Restorative and Cosmetic Dentistry, Dental Faculty, Tehran Medical Sciences