We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
International Poster Journal of Dentistry and Oral Medicine



Forgotten password?


Dear readers,

our online journals are moving. The new (and old) issues of all journals can be found at
In most cases you can log in there directly with your e-mail address and your current password. Otherwise we ask you to register again. Thank you very much.

Your Quintessence Publishing House
Int Poster J Dent Oral Med 22 (2020), No. 3     15. Sep. 2020
First Prize Int Poster J Dent Oral Med 22 (2020), No. 3  (15.09.2020)

Poster 2302, Language: English

Comparative Analysis of Peroxygen Powdered System for Rapid Disinfection of Gutta-Percha Cones
Thomas, James / Borthakur, Bikash J.
Aim: The aim of this study is to analyse the effectiveness of Peroxygen Powdered System for rapid disinfection of gutta-percha cones and compare it with conventional disinfection methods.
Materials and Methods: 110 gutta-percha cones of size 45 were used in the study and divided in to five groups. All the samples of gutta-percha were contaminated by immersing the cones in test tubes containing a bacterial suspension of E. faecalis strain ATCC 29212 and were incubated at 37°C for 24 hours. The initial colony forming units were determined by randomly immersing two gutta-percha cones from each group in vials containing sterile physiologic saline for 1 minute, and samples were obtained for colony forming units (CFU) count. Then, the cones from each group were tested for disinfection efficacy of the chemical agents, which were 3% sodium hypochlorite (Group I), 2% chlorhexidine (Group II), Peroxygen Powdered System [0.4 % peracetic acid] (Group III), and distilled water (Group IV) as a control, for 5 minutes. After disinfection, two cones from each group were passively rinsed in sterile water and agitated in vials containing sterile physiologic saline solution for 1 minute, and the samples were seeded in BHI agar, and incubated for 24 hours. The final bacterial colonies were counted with a colony counter. The remaining cones were stored in test tubes containing BHI broth and incubated, and then observed for turbidity for 72 hours.
Conclusion: Peroxygen Powdered System containing 0.4% peracetic acid was found to be as effective as 3% sodium hypochlorite for the rapid disinfection of gutta-percha cones.

Keywords: Gutta-percha, disinfection, peracetic acid

Poster Award: First Prize

16th Indian Academy of Conservative Dentistry and Endodontics & Indian Endodontic Society Postgraduate Convention
04.-06. June 2015
Muradnagar, Ghaziabad, Uttar Pradesh, India