Objectives: This case report aims to report the incidental finding of tooth impaction and a dentigerous cyst in an asymptomatic patient, identified through a panoramic radiograph as the initial examination before prosthodontic treatment, and to discuss the role of further examination using CBCT in confirming the diagnosis and treatment planning. Case Report: A 47-year-old female patient came to RSGM Udayana University complaining about missing teeth in the right and left posterior regions, and wanted a denture. Clinical examination showed a mesiodens and unerupted tooth 23, without other complaints. Based on the medical history, the patient claimed to have a history of hypertension. The patient was referred to the radiology department of RSGM Udayana University to undergo a panoramic radiograph examination. Based on the result, it revealed some incidental findings of a dentigerous cyst marked by an oval-shaped, well-defined radiolucency in the region of teeth 37 and 38 and multiple impactions. Furthermore, a CBCT examination was performed on the patient to further diagnose the condition. The CBCT examination showed a radiolucent lesion surrounding the crown and causing destruction of the lingual aspect of the cortical bone, and inverted impaction of tooth 38 and horizontal impaction of tooth 23. Conclusion: Panoramic examination has successfully revealed multiple impactions and an incidental finding of a dentigerous cyst. Furthermore, CBCT examination is needed to assess the lesion in three dimensions, size, extent, position, relationship to surrounding anatomical structures, and assist in comprehensive treatment planning.
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