Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt最新文献

This article presents the oral situation of 11 anorectic and 41 bulimic patients and compares it with 50 healthy control persons. While patients with an eating disorder showed less signs of gingival inflammation (SBI: anorexia: 14.6%; bulimia: 12.5%; controls: 44.7%), they had clearly more enamel erosions than healthy control persons. In 27 of 41 bulimic patients a bilateral swelling of the parotid gland was found. A significant correlation between the parotid enlargement and enamel erosion exists in bulimic patients with an anorectic prephase. Patients with an eating disorder had higher levels of serum amylase than healthy control persons. A significant correlation between serum amylase activity and dental characteristics was found in bulimic patients.

The aim of the study was to evaluate the healing of the gingival grafts covered with Solcoseryl dental adhesive paste (Solco Basel AG) in comparison with the grafts covered with Peripac. By means of thermistor thermometer coupled with a chart recorder, three series of temperature as time recordings of grafted tissues after normalized cooling were performed--before grafting, 2 and 12 weeks after grafting. On the basis of temperature recovery curves obtained, the blood supply coefficients were computed. It was revealed that in the Solcoseryl group there was an improvement in blood supply in 75% of the cases--2 weeks, and 66%--12 weeks after grafting. In the other group, the same reaction was observed only in 50% and 30% of the cases respectively.

The concentration of zinc, magnesium, calcium and lead in four layers of dental hard tissue was analysed in 108 deciduous teeth of children from nine different places of the G.D.R. The result was a contrary gradient from enamel to dentine of magnesium in comparison with zinc, lead and calcium.

From 800 patients with dysgnathias and from 90 probands with eugnathic bite those persons were selected, who had no sigmatism. The position of the tongue during the articulation of the sound S was proved at persons without sigmatism. Sigmatism is observed as highly significant more frequently at patients with dysgnathias than at probands with eugnathic bite. An apical kind of formation of the sound S is observed as significant more frequently at patients with dysgnathias than at persons without dysgnathias. Apical S is found as highly significant more frequently at the "open bite" than at the "lack of room" and at the "extended overjet". Apical S especially together with dysgnathias may be valued as a transition to a pathologic sound S.

Sound and carious root surfaces of 24 extracted human teeth with extensive periodontal attachment loss were examined by SEM. The microflora covering the radicular surfaces was a complex flora consisting of filamentous and fusiform bacteria, short and long rods. Cocci and coccoid bacteria were observed on root surfaces. Bacterial invasion in the exposed peripheral root dentin was delayed by sclerotic dentin.

In estimating of bite-wing radiographies of lateral teeth at diabetic children in different age groups and developmental dental periods carious diagnostic effect is represented in comparison with clinical observations. Calculating the caries indices for permanent teeth no statistical significant differences appear between clinical and clinical radiographical dates. A comparison of statements at the approximal surfaces shows in all age groups an equal frequency only in radiographic visible destructions of enamel. After the 14th age the number of destructions in the dentin is increasing. The essential modifications at the periodontal bone are in a direct connection with caries and restorations at the corresponding approximal surfaces. The bite-wing radiographic remains his value in recognizing the period of caries activity and should be used in diagnostic of early lesions at patients of risk.

On the basis of analyses of the main noise emitting equipment was carried out an audiometric test of dentists. The high frequencies of various equipment are reflected in a reduced high-frequency hearing. Significant differences became evident with increasing years of service, as well as in comparison to age adequate control groups. The high-frequency audiogram used in addition to the normal threshold audiogram is suitable to prove such occupational changes. The measured hearing loss remained without social importance in all cases.

According to the necessity for examinations of humoral immune response in the oral cavity a new method for evaluating the gingival sulcular fluid proteins is described. In combination of isoelectric focussing on ultrathin-layer polyacrylamide gels, with silver staining a possibility for representing a small quantity of protein as to be expected in sulcular fluid, was found.

By using a combination of histologic methods (decalcified and nondecalcified sections) the morphologic information on topological characteristics of periodontal disease is broader. Inflammatory parameters of disease progression and stagnation are well documentable. Exclusively ground stained sections of nondecalcified specimen of the local relationship of gingiva, calculus, and plaque are able to characterize the topology of the periodontal disease progress and the typical liquid phase of subgingival plaque.