LAUSR

Aims and Objective: To compare the bone invasion in orthopantomogram (OPG) and technetium 99 m bone scan in oral squamous cell carcinoma (OSCC). Materials and Methods: Clinically and histopathologically proven 30 cases of OSCC were randomly selected. OPG and Tech 99m bone scan was carried out in all selected patients. The results were analyzed according to age, sex, and site of involvement. OPG findings and bone scanning uptake were also compared according to site, grade, and difference of uptake. Results: Group of patients which showed definite bone invasion in OSCC were positive in radionuclide uptake imaging while another group of patients which showed no changes in OPG had some patients which were positive on radionuclide uptake imaging while few were negative on both OPG and bone scanning. Conclusion: Combination of OPG and Tech 99m bone scan was more accurate in detecting bone invasion in OSCC than OPG and bone scan alone.