Aim: The aim of the study was the radiographic assessment of bone availability in maxillary posterior region for placement of zygomatic implants. Method: The study included diagnostic panoramic radiographs of patients. The patient should be free of any systemic disease affecting the bone. The radiographic selection criteria included absence of obvious facial asymmetry, clearly visible anatomic structures and no surgical and fracture history. Measurements were made from reference lines drawn from anatomical landmarks on standardized panoromic radiographs. The heights were measured at pre–determined sites on radiographs using digimatic caliper. Results will be subjected to statistical analysis. Conclusion: It was concluded that the OPG gave a fairly good idea about the amount of bone availability in posterior maxilla for zygomatic implants. It also concluded that bone height in posterior maxilla in males is greater than the bone height in posterior maxilla in females.