The gnathic system in obese and diabetics. I (Basic relationship of function and form).

The authors pay complex attention to the research of the gnathic system, focused first of all to the mechanical interactions towards solid formations of the gnathic system. The results of their analysis show, that in the first cell already differentation to tensile functions of the membrane and compressive functions of its contents (cytoplasm) exists. In the osseous tissue the mechanical strain is also distributed to different substances, reacting differently to the mechanical stress according to their aggregate state--the liquid state secures an equal distribution of the developing compression, the collagens intercept and cushion the arising traction, and the mineral component the oriented compressions.

The gnathic system in obese and diabetics. II. (Changes in the hard tissues).

The authors pay increased attention to issues concerning correct interpretation of mechanical phenomena of the hard tissues that facilitate interdisciplinary cooperation with technical specialists. Equal attention is paid also to terms of compressive stress and compressive strain. Analyzing the crown of the teeth the authors found striking coincidence between the developing dental caries localization and lower values of compressive strains.

[Changes in capillary blood flow in the gingiva during emotional excitation].

In 30 subjects aged 20 to 44 years the functional changes were studied in the gingival capillary bed, pulse rate, systolic and diastolic blood pressure before and during emotional excitation. These values compared, considerable effects were detected suggesting the general circulatory changes and substantial reduction of gingival microcirculation. This indicated that emotional stress-inducing factors may lead to periodontal diseases.

Cellular composition of periapical granulomas and its function. Histological, immunohistochemical and electronmicroscopic study.

Periapical granulomas have been investigated histologically, immunohistologically using polyclonal and monoclonal antibodies, as well as electronmicroscopically. Lesions were formed by inflammatory granulation tissue frequently with foci of purulent exudation and fibrosis. Most numerous were plasma cells usually in cellular regions of the granulation tissue where they were tightly pressed.

Changes in the capillary flow of gingiva due to the influence of some impulses.

75 healthy men and women, aged from 20 to 45 years, were divided into five groups of 15 persons each. Na131I resorption halftime values from the examined area of the gingiva, pulse frequency as well as systolic and diastolic blood pressure were examined. Tests were carried out twice.