Pathohistological Aspects of Inflammatory Cysts

: Undefined etiopathogenetic mechanism of inflammatory cysts and frequent complications were the subject of our interest. The study was focused on pathohistological examination of inflammatory cysts and possible effect on the local etiogenetic factors in the evolution and prognosis of the cystic lesion. Material and methods: A total of 150 patients with a diagnosis of inflammatory cysts were examined. All of the patients were assigned to 3 groups, each comprising 50 patients according to the diagnosis: group A - patients with radicular cysts; B - patients with residual cysts and group C – patients with periodontal cysts. The control group consisted of 35 patients without cystic disorders. Clinical examination was based on anamnesis and clinical data. Paraclinical segment involved patohistological evidence. Results: Pathohistological aspect showed predominantly chronic exacerbation infiltrate (radicular 56%, residual 64% and periodontal 66%), versus common chronic infiltrate. Regarding epithelium, sheet squared epithelium was predominating (72% in radicular, 66% in residual and 74% in periodontal cysts) while cylindrical epithelium was very rare. Conclusions: Our results provide concrete evidence about the nature of the inflammatory cysts (etiopathogenesis of this frequently present oral cavity disorder).