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Biomedical subjects

A Puff

Publications and source records attributed to A Puff.

16 recordsLinked to original sources

[Roentgencinematographic studies on the mechanics of the tempero-mandibular joint. Function of the tempero-mandibular joints in patients fitted with full dentures (author's transl)].

Investigations of the articular mechanics of the tempero-mandibular joint are an important element in gnathology. Graphically recorded movements of the condylus obtained by extra-oral mechanical aids, only give information about the projections of the articulatory pathways. Only roentgencinematography allows a profound study of the articular mechanics. The movements of the condylus can be analysed directly without interference. Studies on condylar pathways evaluated by roentgencinematography from waerers of full dentures who received two sets of dentures which fitted after different jaw relation determinations, confirmed that the movement of the condylus is controlled by neuromuscular mechanisms. The condylar pathway changes after removal of the dentures. The fitting of different dentures in a healthy stomatognatic system had no effect on the course of the pathway. In neuromuscular disorders the fitting of a full denture which can be made corresponding to the functional anatomical concept reflecting a suitable jaw relation determination according to Gerber, allows the articulation pathway to be altered. A therapeutic re-orientation of the pathological reflexes makes the improvement of the discomfort possible.

Aged

[Radiocinematic comparison of the movement of the temporomandibular joint in the same patient with total prosthesis after various jaw relation recordings].

Six edentulous patients were each provided with two complete dentures and the relation of the jaws to each other was determined by means of both the conventional checkbite and a combined Gerber arrow-angle registration. Cineradiographic evaluation of the temporomanidibular joint movements did not confirm a bony or ligamental guidance, but showed that the condyle path is characterized by neuromuscular coordination. In four patients there was no characteristic difference in the form of condyle path when using the two dentures. But the condyle paths differed strikingly in those patients who had temporo-mandibular complaints or neuromuscular disharmonies. The paths were clearly steeper with Gerber dentures than dentures made after the conventional check-bite. In laterotrusion the "active" condyle moves on a straight line towards the from and downward, while the relatively "resting" condyle describes a shortened path corresponding to the initial part of an opening movement.

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