Tooth resorption part II - external resorption: Case series
A 23- year-old female patient with a non contributory medical history expressed her desire to close the spaces between her anterior teeth. Past dental history revealed a history of trauma about 8 years back. Clinical examination revealed a 5 mm diastema between teeth #8 and 9. Tooth #9 and 10 displayed a pinkish hue in the cervical third of the crowns. Tooth #10 displayed grade II mobility while tooth #9 was non mobile. A ‘catch’ with the explorer was detected in mesial cervical region of tooth #9. A periapical radiograph revealed a large resorptive lesion in tooth #9 extending from the cervical region to almost the apical third of the root. The periodontal ligament space (PDL) space could not be traced suggestive of ankylosis. Tooth #10 showed an infiltrative kind of radiolucency extending from cervical to apical third of the root []. Both the resorptive lesions were classified as class 4 lesions according to Heithersay's classification[] and due to poor prognosis, extraction was advised for both teeth #9 and 10.