Nuclear aberrations in the gingival epithelium of patients with chronic periodontitis.

Context: Periodontitis characterized by mild symptoms in the early stages, which makes diagnostics problematic. The gingival epithelium can be used for micronucleus assay since gums are the area affected by the disease.

Aims: The aim of the study was to study the frequency of occurrence and the range of nuclear anomalies in gingival epithelium of healthy people and people with periodontitis.

[Development and evaluation of simulation methods for manual skills training in 'Removable dentures' module].

Unlabelled: To determine the effectiveness of a simulation method of teaching manual skills modulo 'removable dentures' in a clinical setting.

Material And Methods: The material 1 phase of the study were 82 people, students of 3 courses, divided into a control group where the training was conducted with the use of standard phantoms and group study which used a dental simulator CDS 100 of V generation. Material 2 stages presented 48 people who participated in phase 1 and divided into groups similar to the 1 stage, young professionals in 2016.

[Physiological changes in the morphology of the main structural enamel unit - hydroxyapatite crystal - during its life span (in vitro study)].

The in vitro study by means of complex laboratory techniques including X-ray faze analysis, infrared spectroscopy, scanning electron and atomic force microscopy defined age-related physiological mineralization process as a shift of the structural enamel unit - nanocrystalline hydroxyapatite crystals - TO microcrystal phase. Relevant anatomical sites with age-dependent enamel optical characteristics corresponding to certain ratio of hydroxyapatite phases and the compliance of their color characteristics to composites enamel layers were revealed.