ISSN 2564-7784 | E-ISSN 2564-7040
Original Article
Effect of Agitation of Ethylenediamine Tetraacetic Acid (EDTA) with Sonic and Photon-Initiated Photoacoustic Streaming (PIPS) Tecniques on Dentin Microhardness
1 İzmir Kâtip Çelebi University, Faculty of Dentistry, Department of Endodontics, İzmir, TURKEY  
Eur J Ther ; : -
DOI: 10.5152/EurJTher.2019.18082
Key Words: dentin, ethylenediamine tetraacetic acid, laser, microhardness

Objective: The aim of this study was to evaluate and compare the effect of agitation of ethylenediamine tetraacetic acid (EDTA) with sonic system and photon-initiated photoacoustic streaming (PIPS) technique on the microhardness of root canal dentine.


Methods: Twenty-four extracted single-rooted human mandibular incisor teeth were collected. The root canals were instrumented according to the manufacturers’ instructions using the reciprocating single-file system Reciproc. The teeth were decoronated and roots were longitudinally splitted into two halves. Following initial microhardness measurements of root canal dentine, the halves were connected and the samples were divided into 4 groups according to the final irrigation protocol. Group 1: only distilled water; Group 2: EDTA; Group 3: EDTA + sonic agitation; Group 4: EDTA + PIPS agitation. Final microhardness values were calculated after the irrigation procedures. Shapiro Wilk test was used to evaluate the normal or abnormal distribution of the values. For multi-comparison of the groups, one way Anova and post-hoc Tukey tests were used.


Results: EDTA significantly reduced microhardness compared to distilled water group (p<0.001) while the results of sonic and PIPS activation groups were statistically similar to EDTA alone group (p=0.053 and 0.266 respectively). No significant difference was found between agitation groups (p=0.853).


Conclusion: The results of the present study revealed that neither sonic nor PIPS agitation resulted in further reduction in microhardness.

Key Words
AVES | Copyright © 2019 European Journal of Therapeutics | Latest Update: 18.09.2019