21. It is Scaler , and Carl Kent's process is on its way to Io. 22. Ultrasonic scalers do create aerosols which can spread pathogens when a client carries an infectious disease. 23. He will talk about growing up scrawny yet becoming a legendary scaler of rock faces and icefalls. 24. Consequently, log scalers would walk the rafts and measure and grade the logs in the water. 25. While Aquia is drowned in the flood, Scaler spends most of his time with Carol Kent. 26. The in-built scaler has been removed from the PCH-2000 series PlayStation Vita model. 27. This was the last of Sega's Super Scaler series of pseudo-3D arcade system boards. 28. Calculus buildup can be removed with ultrasonic tools or dental hand instruments ( such as a periodontal scaler ). 29. Ultrasonic scalers , also known as power scalers, are effective in removing calculus, stain, and plaque. 30. Ultrasonic scalers, also known as power scalers , are effective in removing calculus, stain, and plaque.