Stomatologie der DDR最新文献

In 20 professional players on a wind-instrument (10 musicians on wood wind-instruments, 10 ones on brass wind-instruments) the condition was examined if there are significant connections between the meanwhile applied prosthetic therapeutic remedies (imitated by measuring bodies) and the instrumental sound produced by them. The sound quality was analysed as to the quality as well as to the quantity by an appropriate narrow band spectrometer, and a sound index was figured out. By this method we succeeded in demonstrating the use of a maxillary plate in the anterior third of the palate and that one of back-ground splints in the upper front tooth region of players on brass wind-instruments to cause significant sound changes. Additionally, a significant change in sound impression was stated by placing a maxillary plate into the middle of the third of the palate. Thus we succeeded to point out the prosthetic-critical zones of players on a wood wind- and a brass wind-instrument.

With the help of a gamma scintillation camera and a connected data manipulation system using the radioisotope 99mTc pertechnetate the large salivary glands of the head of 44 patients without pathological history of the salivary glands were examined by the results were interpreted. Because of the extended interval it was not able to ascertain normal values with clinical usefulness of the radionuclide accumulation in the large salivary glands. The time-activity-profiles which were won above "regions of interest" were very variably. The patients were divided classify and by using statistical test we found nonsecure influence of age or diabetes mellitus on the function of the salivary glands. Three types of normal time-activity-profiles were differed. In consequence of the discrepancy between the technical expance and the diagnostic value these method will to reserved to a limited range of indication outside the routine diagnostic.

It is described the development of cherubism by a boy during the time of 10 years. All symptoms of this syndrome could be shown. In progress of the illness the lateral mandibular-swellings be reduced, but the roentgenological alterations continue to exist in change figure, extension and position. Additional the bone-structure in the upper incisivi-region disintegrated. Nearly all teeth of the second dentition are afflicted with the cystical changes of the jaw and lead to their loss.

The design of the tooth brush handle has a great importance for learning of effective oral hygienic measures in children. The present paper is a contribution for development of an age-corresponding tooth brush handle considering the anatomical and motorial suppositions of the childlike hand.

The recording of the mandibular movement at a horizontal plane were described by Gysi, McGrane, Marxkors and Solomon also by Kleinrok. Our improvement at the recording set refers to the anchoring by means of which repeated recordings are possible in both patients with teeth and patients with a denture.

A method is described to treat deep isolated periodontal osseous defects in maxillary incisor and canine region with periost-inserted bonetransplant. Indication, procedure and results are demonstrated by a case.

The oral conditions of pupils on three schools with different levels of teachers public relation to the problems of dental service and oral health education were observed before and after a program of dental care and education for 6 months. The best results were reached in the school with highest standard of cooperation and communication between dentists and teachers.

In principle it is possible to homogenize the enamel surface by melting structural elements with the continuous wave CO2 laser. Using the precision instrument NEOPHOT 2 (Carl Zeiss JENA) the microhardness of extracted laserexposed premolares were tested so as to clarify the functional strain capasity and the mechanical characteristics of laserexposed regions of enamel surfaces. The proven higher hardness in the centre of the laserinduced fusing zones (in comparison with adjacent enamel) objectify an attainable refining of the enamel surface that probably causes an increase in the caries-preventive resistance.

For the first time the frequency of freckles and of dysplasias of the eyebrows was examinated in 756 pupils. The percentage of the freckles was 21, and of the dysplasias of the eyebrows 28.5 in both sexes. The following examination of 287 orthodontic patients (66 males with hypodontia, 60 males with normal number of the teeth; 92 females with hypodontia, 69 females with normal number of the teeth) has demonstrated the high significance of incidence of freckles and of dysplasias of the eyebrows in patient with hypodontia. This phenomenon is important, because extraoral stigmatas can indicate to disturbances of the development of teeth and also to anomalies of the number of the teeth.

In examined groups of healthy people as well as in persons suffering from a periodontitis of a different severity-degree with concomitant affections and without them the PO2 in the blood is defined by the concentration of K+ and Cl- in erythrocytes and in blood as well as by the relation between the Cl(-)-concentrations on both the sides of the erythrocyte membrane. The disorders in the concentrations of these electrolytes in patients suffering from a periodontitis use to lead to a defect of the ability of haemoglobin to bind the oxygen as well as to transport it through the erythrocyte membrane, a fact entailing a decrease of PO2 in the blood in this group of sick persons. A decrease of PO2 in the blood for its part may cause in persons suffering from a periodontitis a hypoxia in the periodontal tissue and in other tachytrophic organs.