[Clinical and morphological features of odontogenic keratocysts].

Clinical, histological and immunohystochemical studies of keratocystic tumors were performed showing differences in proliferative activity and MMP-9 expression scores in orthokeratinized and parakeratinised cysts. These histological features are associated with clinical course and may be used as markers for recurrence probability.

[Clinical and morphological features of ameloblastomas].

Clinical, histological and immunohystochemical studies of ameloblastomas were performed and tumor varieties according to proliferative activity and MMP-9 expression scores were identified. These histological features are associated with clinical course and may be used as markers for recurrence probability.

[Surgical tactics by various ameloblastic tumors].

Ameloblastoma and ameloblastic fibroma are benign odontogenous tumors of the jaws with local destructive growth, prone to recurrence. They have various typical radiological and histological features. Surgical tactic generally includes partial resection of the affected jaw.

[Extensive odontogenic cysts of varying histological structure in an x-ray film].

As of now, a dental surgeon and a maxillofacial surgeon face a problem in choosing the optimal treatment of extensive cavitary masses in the maxillary bones. A detailed study of the characteristic x-ray manifestations of large jaw bone cavities makes it possible to give an insight into the pattern and extension rate of a destructive process, to choose the most optimal surgical treatment, and to yield more predictable results. The aim of this investigation was to analyze the morphological characteristics of large odontogenic cysts in the jaw bones and to reveal the main specific features of their x-ray picture in relation to their histological structure.