• Therapy: shaping of access cavity, removal of protuberances • Form: button, large, diamond coating D 46 Indications KaVo SONICflex endo • Shaping of the pulp cavity for coronal root preparation. • Preparation of the canal entrances. • Searching for canals. • Removal of soft materials during revision • Crown-down preparation. • Set of diamond-coated tips. Features: • Excellent overview during the preparation. • Direct view and control during use of magnifying spectacles and operating microscopes • Fast preparation and removal of old root fillings • Easier discovery of the canals • Extension of sclerosed canals • Preparation of a straight access to the canals without weakening of crowns • Removal of hard root filling materials, cements and pins • Avoids perforation and stepping • Spray cooling