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ROLE OF CONE BEAM COMPUTED TOMOGRAPHY IN LEADING TO THE FINDING OF
ACTINOMYCOSIS MIMICKING PERIODONTITIS

Yusof NAM, Harun N, Reduwan NH, Al-Bayaty FH, Ariffin F
Introduction: A gram-positive anaerobic bacteria, Actinomyces, is frequently found in an
extra-radicular infection. This report aims to present a case of persistent radicular cyst
associated with extra-radicular Actinomyces infection in a periodontitis patient. This
report highlights an extensive alveolar bone destruction and the advantages of cone beam
computed tomography (CBCT) imaging by the provision of a superior information to the
details of the bony architecture. Case report: A 63-year-old female presented with an
endo-treated tooth of 37 with a deep probing pocket depth (PPD) in the mid-buccal area
with furcation involvement and mobility. CBCT images demonstrated a well-defined bone
loss region involving the mesial root of tooth 37 extending to the apical 38 that cannot be
detected from the periapical radiograph. The histopathological examination revealed a
cystic lesion lined in small parts by non-keratinizing stratified squamous epithelium and
club-shaped filaments that formed a radiating rosette pattern. Conclusion: While CBCT
imaging helps to a great extent in determining the level of bone destruction, a
histopathological examination is mandatory in establishing the diagnosis.

Published in J Int Dent Med Res 2020; 13(4): 1554-1559
Poster Presentation at the 13 Asian Pacific Society of Periodontology Meeting on 28 – 29 September 2019
th
Dr Nurul Ain Mohamed Yusof
Periodontic Specialist Unit
Kota Setar Dental Specialist Clinic
Alor Setar Kedah

Dr Farha Ariffin
Prof. Dr Fouad Hussain Al-Bayaty
Center for Periodontology Studies
Faculty of Dentistry
Universiti Teknologi MARA
Sungai Buloh, Selangor, Malaysia

Dr Nor Hidayah Reduwan
Dr Nurharnani Harun
Center for Oral and Maxillofacial Diagnostics and Medicine Studies
Faculty of Dentistry
Universiti Teknologi MARA,
Sungai Buloh, Selangor, Malaysia

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