This book presents mechanisms and the clinical implications of Piezosurgery in periodontics in day to day practice as shown by research and clinical experience over the decade since the author first developed the technique. There has been many rapid changes in field of dentistry since last two decades. Among surgical techniques piezosurgery using ultrasonic vibration has been introduced with wide range of applications in dentistry. Ultrasonic vibrations have been used to cut tissue for two decades. However, it is only in the last five - six years that experimental applications have been used routinely for standard clinical applications in many different fields of surgery. This revolutionary technique was invented by Professor Thomas Vercellotti in 1988 to overcome the limits of traditional instrumentation in oral bone surgery by modifying and improving conventional ultrasound technology. The Piezosurgery device consists of a novel piezoelectric ultrasonic transducer powered by anultrasonic generator capable of driving a range of resonant cutting inserts. This innovative device is designed and commercialised by Mectron Medical Technology to overcome limits of traditional instruments and to reach increasingly higher levels of precision, safety and rapidity in recovery after bone surgery.