[Ground occlusal facets and the pathological findings in the masticatory system of young patients].
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Adult↗
Biomedical subjects
T Holste
Publications and source records attributed to T Holste.
[An exact method for eccentric adjustment on semi-adjustable articulators].
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Dental Articulators↗
[The Bennet angle].
The size of the Bennett angle in dependency on the lateral excursion, the initial Bennett movement, and the intercondylar distance was calculated as a basis for correcting semi-individual articulator. The extent of the initial Bennett movement and the lateral excursion are distinctly influential; the intercondylar distance plays a subordinate role. The results of the calculations provide an indication of the size of the Bennett angle taking into account the initial Bennett movement, the latleral excursion of the mandible, and the width of the face.
Biophysical Phenomena↗
[Comparative studies of the reproducibility of eccentric position registration with Lauritzen's technic].
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Dental Articulators↗
[Comparative studies on the reconstruction of the intermaxillary distance after loss of temporary crowns].
If temporary crowns are lost following preparation in the supporting areas, the condyles may be displaced. It however was established that the normal position of the condyles can be approximately reproduced with a central bearing device. On the basis of the results, it was determined that the support pin method is superior to the procedure using central wax registration.
Crowns↗
[Comparative studies on the applicability of a new surface conditioning system (Airsonic Mini Sandblaster) in adhesive bridging technic].
The object of this work was to investigate a new surface conditioning system for hydrolysis-stable metal-polymer bonds in dental prosthetics. The application of the adhesive SiO2-interface layer was achieved tribochemically by the use of a miniaturised sand blasting instrument (Airsonic Mini Sandblaster, Co. Hager and Werken, Duisburg, Germany) using the SiO2 coated Rocatec blasting medium. An advantage of this instrument is the possibility of decreasing costs for dentist and patient and also the time of treatment by connecting the device to the dental chair. Evaluation of applicability was based on the composition and morphology of the coatings applied to different dental alloys (titanium, NiCr, CoCr). In addition, the strength of metal-polymer bonds prior to and after physiological ageing was determined by tensile shear testing. In all cases the Airsonic Mini Sandblaster coatings proved to be equivalent to the original Rocatec system in terms of the parameters tested, such as structure and composition of the coating, and adhesivity. Irrespective of the adhesive alloy-dependent adhesive strengths in the region of 24-30 MPa were achieved; no significant decrease in strength caused by degrading of the bonds occurred. Bonding strengths are within the range reported in the literature for the Rocatec system, and are appreciably above clinically required minimum strength of 10 MPa as enamel strength. The results demonstrate the applicability of the Airsonic Mini Sandblaster in practice. By employing the procedure at the dental chair the process of silicating and subsequent silanising can be transferred from the dental laboratory to the dentist's practice. In this way, a reduction in treatment time and costs is achieved, and the reliable handling of the coating system is also improved.
Adhesiveness↗