Comparative study of debris and smear layer removal with EDTA and Er,Cr:YSGG laser

Abstract
Background: To evaluate in vitro , the ability in removing debris and Smear Layer of 17% EDTA and Er,Cr:YSGG laser. Material and Methods: 58 unirradicular teeth were instrumented with MTwo® and divided into 3 groups according to irrigation protocol: 17%EDTA, laser and a combination of 17%EDTA and laser. All samples were analyzed in the apical and middle third with Scanning Electron Microscope. The Chi-cuadrado and McNemar tests were used to determine the statistical analysis and data processing and analysis was performed with the statistical package StatGraphics Centurion XVI. Results: Debris analysis showed statistical significant differences when compared EDTA vs laser and EDTA vs EDTA+laser in the middle third. The Smear Layer removal showed statistical significant differences in the middle third when compared EDTA vs laser and EDTA vs EDTA+laser. Conclusions: Laser showed a greater cleaning capacity than EDTA in the middle third; the cleanliness was even better when combined laser with EDTA, so the effect is accumulative.
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Bibliographic reference
Montero-Miralles, Paloma ; Torres Lagares, Daniel ; Segura-Egea, Juan J. ; Serrera Figallo, María Angeles ; Gutiérrez Pérez, José Luis ; Castillo Dalí, Gabriel. Comparative study of debris and smear layer removal with EDTA and Er,Cr:YSGG laser. En: Journal of Clinical and Experimental Dentistry, 10 6 2018: 598-602