TY - JOUR AU - Birkenfeld, F; Becker, M E; Harder, S; Lucius, R; Kern, M TI - Increased intraosseous temperature caused by ultrasonic devices during bone surgery and the influences of working pressure and cooling irrigation JO - Int J Oral Maxillofac Implants IS - 06 VL - 27 PY - 2012 SP - 1382 EP - 1388 ER -