While there is much focus today on the exciting areas of regeneration and implantology, it remains essential to maintain skills in osseous surgery. These lectures will explore the indications, effectiveness and limitations of osseous surgery, from pocket reduction through restoratively related needs. In addition, suggestions for classical clinical techniques of flap design and bone modification, as well as the latest data and techniques for the fast-developing area of piezoelectric devices, will be discussed. Novel approaches to resective surgical techniques and their rationale in managing tooth contours and mildly involved furcations will also be presented.