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This case series demonstrates the use of CT to detect both mild and severe dental disease in koalas. The study also documents the normal CT appearance of the nasolacrimal duct in the koala. The only clinical abnormality in koalas with the mildest dental disease was ocular discharge. Computed tomography findings associated with ocular discharge were periapical lysis of first maxillary incisors, lacrimal canal remodelling and subsequent nasolacrimal duct obstruction. Dental disease should be a differential diagnosis for ocular discharge in koalas and CT examination enables visualisation of early stages of dental disease.<\/jats:p>","DOI":"10.1111\/avj.13158","type":"journal-article","created":{"date-parts":[[2022,3,25]],"date-time":"2022-03-25T09:40:01Z","timestamp":1648201201000},"page":"277-282","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Case series: Computed tomography (<scp>CT<\/scp>) demonstrates lacrimal canal involvement in koalas (<i>Phascolarctos cinereus<\/i>) with maxillary incisor dental disease"],"prefix":"10.1111","volume":"100","author":[{"given":"AJ","family":"Bryce","sequence":"first","affiliation":[{"name":"Department of Veterinary Clinical Sciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences University of Melbourne  Melbourne 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