The aim of this investigation was to evaluate RadioVisioGraphy (RVG) and conventional radiography using Ektaspeed films in the detection of mechanically created bony lesion and determine the difference in identification of both buccal and lingual lesions. Thirty goat mandibles were used. Artificial lesion were created in the area of the body of mandible using round burs #2, #4, #6 and #8 round. Four defects were created posteriorly in between the teeth of each jaw on the buccal aspects in 30 jaws and the lingual side in another 30 mandibles. Periapica radiographs were made using RVG and conventional radiography. Results displayed a statistically significant difference between the size of bur and the detection of bony lesion regardless of the imaging type. (P>0.005). Defects on the lingual were significantly well depicted than those on the buccal at P>0.005. RVG demonstrated superiority in its diagnostic accuracy (p>0.005). It is concluded that RVG has significantly a better diagnostic value in the detection of early pathological conditions.King Saud Universit