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ANALYSIS OF VISIBILITY OF MANDIBULAR ANATOMIC LANDMARKS USING PANORAMIC RADIOGRAPHY

Dr Mariyam Usman, Dr Maryam Hajira, Dr Saher Rafique

Introduction: Pantamography is the frequently used radiographic technique in dentistry. The word panoramic radiography is extracted from panorama which means an unimpedded view of an area in every required direction. Aims and objectives: The main objective of the study is analysis of visibility of mandibular anatomic landmarks using panoramic radiography. Material and methods: This cross sectional study was conducted in Demontmorency College of Dentistry, Lahore during January 2019 to July 2019. The data was collected from 100 patients. Panoramic and CBCT images from 100 children and adolescent patients were randomly selected from existing records in the Department of Oral and Maxillofacial Radiology. Results: The data was collected from 100 patients. The mandibular canal could be observed in 92.5% of 100 cases, with good visibility in 12.0%. The mental foramen could be observed in 44.5% of cases, while no cases had good visibility. Anterior looping of the mental nerve was present in 16.5% of cases, but no cases had good visibility. An incisive canal could be identified in 22.5% of cases, with only 1.5% showing good visibility. The lingual foramen could be visualized in 61.0% of cases, with good visibility in only 6%. Conclusion: It is concluded that the radiation doses from CBCT are significantly lower than medical CT, but generally higher than conventional dental radiography.

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