Journal of IMAB - Annual Proceeding (Scientific Papers)
Publisher: Peytchinski, Gospodin Iliev
ISSN: 1312 773X (Online)
Issue: 2013, vol. 19, book 4
Subject Collection: Oral and Dental Medicine
Pages: 415-418
DOI: 10.5272/jimab.2013194.415
Published online: 20 November 2013

J of IMAB 2013 Jul-Dec;19(4):415-418
Tzvetelina Gueorgieva 1Corresponding Autor, Maria Dencheva2, Julia Kamenoff3, Vasil Kalchinov1, Margarita Vasileva4.
1) Department of Conservative dentistry, 2) Department of Imaging and oral diagnosis, 3) Department of Prosthetic dental medicine, 4) Student in Faculty of Dental Medicine,
Faculty of Dental Medicine, Medical University Sofia, Bulgaria.

Endodontic therapy consists of cleaning and shaping the root canal system, removing organic debris and sealing the intracanal space with permanent filling materials. The use of lasers and photo-activated disinfection in endodontic treatment may cause morphological changes in the dentin of the root canal. The purpose of this laboratory study was to compare the degree of hermetic obturation of root canals after endodontic treatment and disinfection with Nd: YAG laser, photo-activated disinfection with FotoSan, NaOCL 2,5% + EDTA 17% and obturated with AH 26 sealer and gutta-percha. For the laboratory study we used 30 freshly extracted single rooted teeth. After that the teeth are divided into three groups, depending on the mode of additional root canal disinfection and obturated. The leakage was shown using dye penetration test with methylene blue for a period of  3 days at 37°C. Microleakage was observed in all studied groups.

Key words: endodontic therapy; microleakage; dental laser; photo-activated disinfection;

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Please cite this article as:
Gueorgieva Tz, Dencheva M, Kamenoff J, Kalchinov V, Vasileva M. A comparative study of microleakage of obturated root canals after disinfection with Nd:YAG laser, PDT and NaOCL and EDTA. J of IMAB. 2013 Jul-Dec;19(4):415-418. doi: 10.5272/jimab.2013194.415.

Correspondence to: dr Tzvetelina Gueorgieva, Department of Conservative dentistry, Faculty of Dental Medicine, Sofia; 1, Georgi Sofiyski blvd., 1431 Sofia, Bulgaria; e-mail:

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Received: 26 August 2013
Published online: 20 November 2013

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