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Nonendodontic periapical lesions: a retrospective study in Chile
A Ortega1, V Fariña, A Gallardo
1Department of Oral Pathology and Department of Endodontics, Faculty of Odontology, University of Chile, Santiago, Chile. aveortega@lycos.com
International Endodontic Journal
|March 22, 2007
Summary
Histopathological examination of periapical lesions rarely changes the clinical diagnosis, with non-endodontic pathologies found in only 0.65% of cases. Odontogenic tumors were the most common non-endodontic periapical lesion identified.
Area of Science:
- Oral pathology
- Dental diagnostics
- Histopathology
Background:
- Periapical lesions often present with clinical signs of dental pulp necrosis.
- Accurate diagnosis is crucial for effective treatment planning.
Purpose of the Study:
- To assess the frequency of histopathological diagnosis altering the clinical diagnosis of periapical lesions.
- To identify the types of non-endodontic lesions occurring in the periapical region.
Main Methods:
- Retrospective analysis of biopsy specimens from 1975-2005.
- Inclusion criteria: clinical diagnosis of pulp necrosis with periapical pathosis.
- Data collected: patient demographics, tooth location, pulp status, and histopathological diagnosis.
Main Results:
- Out of 32,423 biopsy specimens, 4006 (9.13%) had a clinical diagnosis of pulpal necrosis.
- Only 26 cases (0.65%) revealed non-endodontic histopathological diagnoses.
- Keratocystic odontogenic tumor was the most frequent non-endodontic lesion.
Conclusions:
- Histopathological examination of periapical lesions can occasionally identify non-endodontic pathologies.
- Odontogenic tumors constitute the majority of these non-endodontic periapical lesions.