Benign bony outgrowths are non-neoplastic lesions leading to bone deformation. The purpose of this paper is to describe the benign bony outgrowths of the jaw, which includes: torus mandibularis, torus palatinus, osteoma, osteomatosis and fibrous dysplasia. These are neodontogenic, palpatory hard changes, which cause the deformation of the bone. They are covered with intact lining and are mostly asymptomatic. They appear either independently or within the syndrome. Osteomatosis is most common within the Gardner's syndrome, fibrous dysplasia on the other hand as part of Albright's syndrome, while tori most often appear as independent lesions that may come along with exostosis. The diagnosis is based on clinical, radiological and histological results. Therapeutic intervention is indicated when lesions prevent the making of prosthesis, limit function, cause deformities, or are aesthetically unpleasant. Therapy is surgical for all lesions. The action consists of a section showing the change, modelling or excision of the change and sewing. In the case of fibrous dysplasia, the procedure is performed only after the growth and the development is complete. Osteomas and Tori do not recur, while fibrous dysplasia has up to 25% recurrence. These lesions do not have malignant potential but steomatosis occurs within Gardner's syndrome at which the risk of malignant transformation of intestinal lesions is 100%. In Gardner's syndrome the oral signs tend to appear before by the intestinal,so the dentist may first suspect the syndrome and it is necessary to refer the patient to the gastroenterologist.