Panoramic radiography study on prevalence of zygomatic air cell defect
Background: Zygomatic air cell defect (ZACD) is a normal radiographic occurrence and the clinical importance has been sparsely evaluated.
Objective: The aim of the study was to determine the prevalence, radiographic appearance and characteristics of patients with zygomatic air cell defect.
Materials and methods: Panoramic radiographs of 500 patients of both genders in the age group of 15–65 years who presented as dental outpatients were examined retrospectively.
Results: Out of 500 radiographs ZACD was found in 14 giving an overall prevalence of 2.8 %. Out of the 14 cases of ZACD 4 were found in males and 10 in females of which 12 (85.7 %) were unilateral with 5 on the right and 7 on the left side and 2 cases (14.3 %) were bilateral.
Conclusion: The occurrence of ZACD is a normal radiographic variant seen in panoramic radiographs. Very few studies have documented the prevalence of ZACD and its characteristics. The present study observed an overall prevalence of 2.8 % which was consistent with other studies. Knowledge of ZACD may be helpful in the diagnosis of other pathological entities affecting the zygomatic region, in surgical planning of temporomandibular disorders and understanding the spread of pathological processes.