Many dental diseases have no symptoms and develop on the tooth roots, that?s why they are invisible. For its diagnosis Oral Surgeons in Oregon make orthopantomogram. This preventive measure helps to diagnose such serious disease as bone cyst. It leads to serious violations of the integrity of the jawbone, or its fractures. In such case cystic cavity enter pyogenic bacteria that lead to severe inflammation, which involve bone marrow, developing osteomyelitis. For the treatment of jaw cysts dentists resort to surgery. Such procedures as cystostomy and cystectomy, sometimes help to avoid surgery. But complications of cysts and abscesses require opening of the cavity and its drainage.