This lesion was asymptomatic and was discovered by the patient’s orthodontist. The clinical examination was significant for retained tooth #M, missing tooth #22 and expansion of the facial bone between teeth #21 and 25. The radiographic features were as significant as the clinical examination, confirming the missing tooth being impacted (Figure 1), the retained tooth #M and the expansion being the result of a unilocular radiolucency around the impacted tooth #22.
Figure 1 This is a panoramic view taken at the first clinical presentation. The radiograph demonstrates a well-demarcated to corticated unilocular radiolucency around impacted tooth #22 with the tooth displaced inferiorly.