Pre-prosthetic surgery is done to provide a better anatomic environment and to create proper supporting structures for prosthesis fabrication. Ultimate goal should be rehabilitation of the patient with restoration of the best possible masticatory function, combined with restoration or improvement of dental and facial esthetics. To achieve this goal, maximum preservation of hard and soft tissues of the denture base is of utmost importance. Wearing dentures for prolonged period manifests adverse changes in the denture-bearing areas due to change in the size of the jaw bones resulting in ill-fitting and painful dentures.