Program including abstracts as pdf available here

P 85
Title
bENIGN CEMENTObLASTOMA: A CASE REPORT OF A RARE CONDITION
Authors
A. DuRÃO 1 , J. KOCH 1 , M. MIRANDA 1 , F. VASILEIOS 2
Affiliations
1 Faculty of Dental Medicine University of Porto, Porto, PORTUGAL, 2 Private Practice, Heraklion,
GREECE
Body
Benign Cementoblastoma (BC), is a rare neoplasm derived from odontogenic ectomesenchyme
of cementoblast origin that forms cementum layer on the root of a tooth. Lesions are more
frequent in male than female and there are cases reported in patients between 8-44. Clinically,
BC has a slow growing pattern, frequently accompanied by pain, and if large, may cause
localized expansion of the cortical plates. This lesion occurs more often in the mandible in the
first permanent molars and often in premolar. Its radiographic appearance is a well-defined
round or irregular radiopacity surrounded by a thin radiolucent line attached to a root tooth.
It is often surrounded by a diffuse area of sclerotic bone. The root of the affected tooth is
usually obscured as a result of resorption and fusion to the tooth.
This poster describes the radiological features of a cementoblastoma of the lower left second
molar in the mandible in a 20 year old male patient. Clinically the patient referred pain at left
mandible which has been increasing with time, and a progressing hard swelling. Panoramic
radiography revealed a well circumscribed radiopaque mass attached to the mesial root of the
left second molar tooth, surrounded by a thin radiolucent halo with about 2 cm extending
from the 36 to the 38. The mandibular canal was inferiorly displaced. Cone Beam Computed
Tomography showed expansion of the buccal and lingual plates and resorption of the distal
root of 36. The main diagnosis hypothesis was cementoblastoma which was confirmed by the
histopathology.
Keywords
cementoblastoma,odontogenic tumour,dental radiography
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