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Year : 2014  |  Volume : 8  |  Issue : 1  |  Page : 8-13

Effectiveness of Er: YAG (PIPS) and Nd: YAG activation on final irrigants for smear layer removal - SEM observation

Department of Conservative Dentistry and Endodontics, M. A Rangoonwala Dental College and Research Centre, Pune, Maharashtra, India

Correspondence Address:
Sucheta Sathe
Department of Conservative Dentistry and Endodontics, Ma Rangoonwala College of Dental Sciences and Research Centre, Azam Campus, Camp, Pune
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-2868.134110

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Aim and Objectives: To determine the effectiveness of laser on final irrigants and observe smear layer removal from coronal, middle, and apical third region of root canal. Materials and Methods: Thirty single-rooted premolars were selected for the study. Access opening was done followed by which cleaning and shaping was completed till F3 using rotary protaper (Dentsply). The samples were randomly divided into three groups (n = 10), Group I - Hand activation using 15 no. K file, Group II - neodymium-doped yttrium aluminum garnet (Nd: YAG)-activated, and Group III - erbium-doped yttrium aluminum garnet (Er: YAG)-activated; which were further divided into two subgroups (n = 5) depending upon the final rinse used, subgroup A - 5.25% sodium hypochlorite (NaOCl) and subgroup B - 17% ethylenediaminetetraacetic acid (EDTA). The samples were then sectioned and taken for scanning electron microscope (SEM) observation. Results: Within the limitations of the study, photon-induced photoacoustic streaming, that is, Er: YAG PIPS showed maximum smear layer removal in coronal, middle and apical third region on 17% EDTA activation.

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