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Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Oct;108(4):e63-6. doi: 10.1016/j.tripleo.2009.05.020. Epub 2009 Aug 28.

Floating retained root lesion mimicking apical periodontitis.

Author information

1
Department of Operative Dentistry and Endodontics, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan.

Abstract

A case of a retained root tip simulating apical periodontitis on radiographic examination is described. The retained root tip, originating from the left lower first molar, floated under the left lower second premolar apical region mimicking apical periodontitis. It appeared as an ill-defined periapical radiolucency containing a smaller radiodense mass on radiograph. The differential diagnosis included focal sclerosing osteomyelitis (condensing osteitis) and ossifying fibroma. Upon exicisional biopsy, a retained root associated with granulation tissue was found. After 1-year follow-up, the patient was asymptomatic and the periradicular lesion was healing. Meanwhile, the associated tooth showed a normal response to stimulation testing.

PMID:
19716723
DOI:
10.1016/j.tripleo.2009.05.020
[Indexed for MEDLINE]

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