Effect of Combined Use of Photon-Initiated Photoacoustic Streaming and Chitosan on Smear Layer Removal

Fatih Sarı; Samet Tosun; Fatih Aksoy; Zübeyde Gündoğar Uçar

doi:10.5152/EurJTher.2018.445

Authors

Fatih Sarı Department of Prosthodontics, Gaziantep University, Faculty of Dentistry, Gaziantep https://orcid.org/0000-0002-4818-8562
Samet Tosun Department of Endodontics, Pamukkale University, Faculty of Dentistry, Denizli https://orcid.org/0000-0001-5073-2013
Fatih Aksoy Department of Endodontics Adıyaman University, Faculty of Dentistry, Adıyaman https://orcid.org/0000-0002-2782-2608
Zübeyde Gündoğar Uçar https://orcid.org/0000-0002-3402-5332

DOI:

https://doi.org/10.5152/EurJTher.2018.445

Keywords:

Photon-initiated photoacoustic streaming, chitosan, ethylene diamine tetraacetic acid, scanning electron microscopy, smear layer

Abstract

Objective: Ethylene diamine tetraacetic acid (EDTA) is an appropriate irrigant for smear removal. This study aims to compare the smear-removing capacity of chitosan in combination with photon-initiated photoacoustic streaming (PIPS) to that of EDTA.
Methods: Forty-five human mandibular premolar teeth were included. Root canals were prepared with OneShape files. The samples were randomly divided into three equal groups. The final rinsing was done as follows. Group 1: 0.2% chitosan irrigation with PIPS irradiation; Group 2: 0.2% chitosan alone; and Group 3: 17% EDTA. All the roots were longitudinally split into two halves and examined under SEM to assess the remaining smear. A statistical analysis was performed using the Kruskal-Wallis test.
Results: In the overall evaluation, the remaining smear was significantly less for group 1 as compared to the other groups (p<0.05). In groups 2 and 3, the remaining smear significantly increased in the apical one-thirds, while in Group 1, the remaining smear was significantly less than the apical one-thirds of the other groups (p<0.05).
Conclusion: Photon-initiated photoacoustic streaming combined with 0.2% chitosan improved the removal of smear layers.

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