To prevent severe root damage it is crucial to use the assessed scaler at a tip angulation of close to 0 degrees. The efficacy of the assessed piezoelectric ultrasonic scaler may be adapted to the various clinical needs by adjusting the lateral force, tip angulation, and power setting. Interestingly, at all power settings, the highest defect volume and depth by far were found after combining 45 degrees tip angulation with 2 N of lateral force. The effects on defect depth were highest for tip angulation followed by lateral force and instrument power setting (beta-weights 0.48 +/- 0.04, 0.34 +/- 0.04, and 0.25 +/- 0.04, respectively). Overall, lateral force had the greatest influence on defect volume compared to instrument power setting and tip angulation (beta-weights 0.49 +/- 0.04, 0.25 +/- 0.04, and 0.14 +/- 0.04, respectively). Defects were quantified using a 3D optical laser scanner. The new iM3 Ultra Piezo Ultrasonic Scalers with LED light technology have been designed for use in the areas of scaling, periodontology, endodontics, and micro-preparation. Combinations of the following working parameters were analyzed: lateral forces of 0.5 N, 1 N, and 2 N tip angulations of 0 degrees, 45 degrees, and 90 degrees power settings of low, medium and high and instrumentation time of 10 s, 20 s, 40 s, and 80 s. Woodpecker Piezo Ultrasonic Dental Scaler Made by the worlds largest manufacturer of ultrasonic scalers, this highly effective unit allows quick and easy. Two-year warranty with unlimited iM3 support. This study assessed defect depth and volume resulting from root instrumentation using a piezoelectric ultrasonic scaler with a slim scaling tip in vitro.
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