Abstract: A periodontal surgical instrument is disclosed which includes a motor. A rotary member is mounted for movement at a center of rotation of the rotary member. A shaft couples the output of the motor to the center of rotation of the rotary member. A coupling structure is secured to the rotary member at a point displaced from its center of rotation. A follower member is coupled to the coupling structure. A track member is coupled to the follower member and configured to allow the follower member to move in a closed loop path. A tool secured to the follower member. A method of use is also described for this periodontal surgical instrument for procedures where extraction is desired.

Abstract: A periodontal surgical instrument is disclosed which includes a handle with two ends. One end comprises a shank with a first cutting head preferably comprising a thin, flexible, angled blade for insertion to separate the gingival attachment and enter the P.D.L. space. The angulation and length are preferably suited to circumscribe the entire circumference of the root structure, all the way to the root apices. The other end comprises a spatula-shaped blade. The blade creates enough space for the introduction of extraction instruments in a controlled manner, and at locations dictated by the surgeon. A method of use is also described for this periodontal surgical instrument for procedures where extraction is desired.