Evaluation of Temperature Changes that Can Be Created on Root Surface During Nd: YAG Laser Applications in Root Canal Using Different Experimental Setup

Objective: in this study, it was aimed to determine the temperature values at the root surface during nd: yag laser application in the root canal and to investigate the reliability of the method. material-method: in the study, 30 non-carious taken central incisors and canines were used. the root canal dimensions of the prepared teeth were determined. the teeth were prepared by the step-back technique. all the teeth were randomly selected and divided into three groups of 10 teeth each. the nd: yag laser was applied to the teeth in group 1: 1.5 w, 15 pps and 100 mj, group 2: 1.8 w at 15 pps, 120 mj , and group 3: 2 w, 15 pps at 140 mj laser application. results: the results of the first laser application and the final laser application were statistically evaluated by means of student-t test and one way anova analysis. considering all the laser levels tested in this study it was determined that pulsed laser application did not exceed the 100c limit, which remained within acceptable limits and caused irreversible damage to periapical tissues. conclusions: within the framework of statistical analyzes and obtained experimental results, it is predicted that 2 w, 15 pps and 140 mj laser application can be used for an effective antimicrobial result.