[Partial results of an investigation of the state of dentition of the Czechoslovak population with regard to targets of WHO for the year 2000]. / Dílci výsledky výberového setreni stavu chrupu obyvatel CSSR z hlediska cílu SZO do R. 2000.

In 1987 a nation-wide survey of the state of dentition of Czechoslovak population in age groups of 2-65 years and above was made. The paper presents the results in the age category of 5-6 years, 12 years, 18 years, 35-44 and 65 year and more, with regard to criteria defined for WHO targets for the year 2000. Data for the CSSR, SSR and CSSR are presented separately.

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. One group served as a control group. During the second test emotional, light, sound or tactile impulses were applied to the other groups. The control group that was not exposed to any of the impulses investigated during the second examination showed no significant differences in values with any of the observed indices. Under the influence of emotional, sound or light impulses, a significant increase in pulse frequency as well as in systolic and diastolic blood pressure was noted. This suggested that both the one-minute volume and the peripheral resistance of the circulation system increased. Na131I resorption half-time values from the examined area of the gingiva significantly increased under the influence of emotional and sound impulse by 64%, of light impulse by 84% and of tactile impulse by 93%. This meant that the blood flow through the capillary gingival bed had significantly reduced due to the influence of these impulses. It is to assume that their long-term influence could contribute to the development of parodontopathies.

Influence of the menstrual cycle on the gingival microcirculation.

In young women in the reproductive age, a statistically significant decrease in the plasma levels of estradiol-17 beta during menstruation (P less than 0.001) was accompanied by marked expression of existing symptoms of chronic catarrhal gingivitis and by their appearance in so far intact areas of the marginal gingivae. At the same time, a statistically significant rise of the gingival index (less than 0.001) was recorded along with a markedly lowered blood flow through the capillary bed of interdental papillae and vestibular mucous membrane, as evidenced by statistically significant decreases in the mean values of half-time of Na131I resorption from the interdental papillae (P less than 0.01) and the vestibular mucous membrane (P less than 0.001), respectively.