The aim of this study was to assess clinical and CT. Scanner imaging features and to survery the value of CT. Scanner in diagnosis cancer of the jaws. Material and method: This is descriptive crosssectional of 104 patients, who were diagnosised cancer of the jaws at Hanoi National Odonto - Stomatology Hospital from 8/2008 to 8/2011. Results from the study showed that: patients age over 40 years is 81/104 (77.88 percent), with a range of 6 to 80 years
the ratio of male/female is 1:1. Pain, swelling are the most common clinical findings 104/104 (100 percent)
ulcer is 81/104 (77.88 percent)...Other features as mobility teeth 70/104 (67.31 percent) and failure an extracttion site to heal 23/104 (22.12 percent). The mandible is 62.50 percent, the maxillar is 37.50 percent, metastatic tumor to jaw bones is 0.96 percent. Osteoclasis is 93/104 (89.42 percent), Osteogenisis is 5/104 (4.81 percent), mixture of osteoclasis and osteogenisis is 6/104 (5.77 percent). Tumor over 2cm is 101/104 (97.11 percent). CT. Scanner had sensitive of 90.28 percent, specificity of 53.13 percent and accuracy of 76.92 percent in diagnosis of the cancer of the jaws. Conduslon: CT. Scanner is a useful Imaging technic in diagnosis cancer of the jaws