Dental air abrasion is a minimally invasive, ultraconservative method, with indication of choice for incipient fissural caries, which still count for 90% of newly appeared caries and raise diagnosing problems of the lesional stage. In this context, the aim of the paper was to use and assess dental air abrasion as an alternative technique for the preparation of dental structures, both on extracted teeth and on patients. Bio-Art microblaster was used on 14 extracted teeth and 6 patients for the removal of fissural caries in molars and premolars. After being acquainted with the technique and according to the specific protocol of use, minimally invasive preparations were made, followed by their restoration with adhesive materials. The advantages of the method, also specified by similar surveys, were: absence of pain, vibration, noise, pressure, and heat that are generated by conventional methods (burs), leading to high acceptance by patients.