Aim: The aim of this study is to correlate the radiological and clinical findings of various periapical lesions of the oral cavity.

Objective: The objective of the study is to analyse the various radiographic and clinical interpretation and correlate the findings by using radiographs. Around 30 radiographs of patients with periapical lesions was selected irrespective of age, sex and race and was evaluated to find the radiographic and to correlate the radiographic findings with its clinical findings.

Materials and method: 30 patients above the age of 18years who were diagnosed with periapical lesions were selected. Clinical and radiographic photographs of these patients were collected and compared.

Results: Among the 30 patients, prevalence of periapical abscess was predominant (80%). Radio graphically significant finding was the presence of PDL widening observed in 86% of the cases. Periodontal ligament space was seen in 3% of the cases. Loss of lamina dura was seen in 37% of the cases whereas pulp calcification was observed in 3% of the cases. Clinically, all the lesions were red in colour with regular margins with 27(90%) patients having tenderness on palpation. Around 26(87%) lesions were localised and 23(77%) patients had sinus discharge.

Conclusion: The periapical lesions found in the oral cavity are seen to occur predominantly in patients with poor periodontal status irrespective of age, sex and race. It is important to study the progress of the sequelae and provide accurate diagnosis for better prognosis. Hence this study is done to emphasis the importance of correlation between radiographic findings and clinical findings.