Biomedical subjects
Publications and source records attributed to M Heners.
The dental operation as an intervention in the physical and psychical integrity of human beings is controlled by three main regulators: the concurrence of dental treatment with scientific knowledge, its accordance with the law to secure dental treatment and its supervision by law. The significance of these three regulators for the weigheability of dental operations is described and analyzed.
The significance of generally accepted rules and their criteria in the discussion on the quality of dental treatment is pointed out. The fact that dental treatment is based not only on empirical but to a great extent also on hypothetically established rules emphasizes the importance of epidemiologic clinical research. Dental treatment cannot be considered purely under the aspects of mechanics. The consideration of dental activities by mechanical and technical parameters alone is not permissible, because this approach disregards the non-mechanical nature of dental interventions.
This study reports the clinical success rates of 6 different implant types inserted with defined clinical indications. The criterium used was implant loss. The survival periods of a total of 1723 implants were statistically evaluated according to Kaplan and Meier's method in relation to the type of implant used and the indication chosen.
The decision for restorative treatment was analyzed in this study, and models were discussed. As model of the first approach, the dental treatment was reproducible, but the findings should not be considered universally valid since psychic factors were not considered.
Three-dimensional synchronized position-limits of the mandible were electronically derived and evaluated in 10 adult subjects with normal mastication. It was shown that the respective positions could not be identically reproduced. To define this physiologic distribution, parameters were introduced with which the biologic tolerance and the reproducibility of the position-limits of the mandible can be described in the first approach.
In this investigation the evaluation of caries by clinical inspection, bitewing X-rays and ellipsographic survey (Panelipse R) were contrasted. The results in 112 volunteers showed that the ellipsographic survey almost doubles the detection of caries but does not achieve the detail of bitewing X-rays.
The relationship between the therapeutic effort of orthodontic and prosthetic measures was described ana analysed by means of net-plan technique. At the end of surgical treatment three treatment situations were found. Analysis showed that orthodontic and prosthetic therapeutic effort stood in a reciprocal relationship.
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The process of loading and relieving dental and periodontal tissue is algebraically defined. The mathematic definition allows an energy balance to be established. The energy deficit observed after loading permtis the biotechnical analogy of the unit tooth-periodontium as a biological shock absorber, whose functioning can be controlled.
With an improved electronic test arrangement, mandibular movement is recorded three-dimensionally as a function of distance and time and simultaneously as a kind of movement. The movement patterns registered by Posselt are, in principle, confirmed. As parameters for the further analysis of the mandibular movement, the characteristic function curves of the sagittal, vertical and lateral movements are presented as distance-time functions.
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Developments leading to modern medicine only began about 150 years ago. The foundation of this progress was laid by the introduction of scientific working methods into practical and theoretical medicine. The principal methodical procedures are described in the present work, defined and examined as to its scientific basis. Examples from dental, oral, and maxillo-facial surgery are given as proof that the models used in the definition of present day biological research are helpful not only give accuracy to content recognized by scientific method but also to assure transition from theoretical to practical science.
In the present paper it is tried to analyze the economic value of prosthetical treatment of edentulous jaws which has to be performed from the physiological and gnathological viewpoints. After defining the therapeutical objective and after standardizing case histories, and medical examinations as well as therapy, well-known individual methodological measures are described which are indispensable for achieving the therapeutical aim. Analysis of therapy, definition of therapeutical objective and standardization of case histories, medical examination, therapy, and methodological individual measures can be used for--rationalizing working procedures in the dental office, --evaluating new methods, --evaluating full dentures, --further elaborating ill-defined methodological steps, --investigating ill-defined therapeutical measures.