ABSTRACT Dentistry has undergone significant advancement and has several changing concept over a decade. One such innovation is piezosurgery. Piezosurgery was originally developed for the atraumatic cutting of bone by way of ultrasonic vibrations and as alternative to the mechanical and electrical instruments that are used in conventional surgery. It is based on the basic principles of ‘piezoelectricity’ discovered by Pierre Curie and Jacquesin 19th century. So this review discusses the equipment, mechanism of action, biological effects on bone, indications, contraindications, advantages and disadvantages of this new technology.