1393 Cervical Root Resorption: Is it Inflammatory or Non-inflammatory in Origin?
J. SIMON, J. NAGHSHBANDI, K. AL-HEZAIMI, and D.A. FAGAN, University of Southern California, Los Angeles, USA

Objectives: There are conflicting opinions on the origin of cervical root resorption. The purpose of this study was to examine histologically whether cervical root resorption begins as an inflammatory or non-inflammatory process. Method: 10 roots in five cats diagnosed with feline odontoblastic resorptive lesion (FORL) were used. The specimens were decalcified, sectioned at 6U intervals and processed for histogical examination. Staining was with hematoxylin, and eosin and Masson's Trichrone Stain. The specimens were examined under light microscope. Results: 1. No acute or chronic inflammatory cells were present. 2. Replacement resorption ie. bone and bone-like material were deposited directly on dentin (ankylosis). No cementum or PDL was present. 3. The pulp of the teeth remained vital and uninflammed. 4. The gingival sulcus remained at the cemento-enamel junction. Conclusion: Cervical resorption begins as a non-inflammatory process and is identical to human replacement resorption (ankylosis).

Key words: Cervical root resorption, non-inflammatory resorption, Feline odontoblastic resoptive lesion (FORL), replacement resorption

Seq #152 - Pulpal Responses to Infection or Injury
11:00 AM-12:15 PM, Friday, 27 June 2003 Svenska Massan Exhibition Hall B

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Back to the 81st General Session of the International Association for Dental Research (June 25-28, 2003)

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