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Biomedical subjects

M Spirgi

Publications and source records attributed to M Spirgi.

At least 37 records · Page 2Linked to original sources

[The centric relation. IV. Variations in condylar positions according to the methods of measuring centric relation and to the patient's clinical type].

When recording and transferring centric relation onto an articulator errors can be minimized by proper use of dental materials. Remaining errors may be due to either the patient or the clinician. 3 recording techniques (Lucia, Dawson, Ramfjord) are being tested by 2 operators on 12 patients. In order to get a proper centric relation one must not rely upon a technique of taking it but rather on an adequate clinical evaluation of the TMJ at that moment. The role of inadequate intermaxillary relationship upon painful TMJ syndroms cannot be underestimate.

Adult↗

Panoramic radiography in the examination of edentulous patients.

A radiologic survey covering 4 years and using orthopantomography was made of 287 edentulous patients prior to denture construction. Orthopantomographs revealed 155 significant lesions in 41 per cent of the patients examined. Therefore, the use of panoramic radiography before any prosthetic procedure is undertaken seems justified. Surgery would be indicated where cysts (residual and follicular), visible root fragments, and sequestra are detected. In most situations, such as deeply imbedded impactions, localized sclerotic bone, or foreign bodies, surgery would not be justified for elderly patients because of the possible unfavorable aftereffects. When this decision is made, the patient should be informed of the possibility of future surgical and prosthetic procedures.

Alveolar Process↗

[The occlusal bite splint and its effect on the centric relation of the maximal opening and closing movement in cases of temporomandibular joint syndrome].

Nine patients presenting temporo-mandibular joint pain-dysfunction syndrome were treated with occlusal bite splints made of acrylic resin, which eliminated premature contacts and occlusal interferences. Results were obtained with an extra-oral apparatus, of personal conception, which allowed to amplify and register maximum opening and lateral deviation in the frontal plane. The study has shown that this treatment brings: - an elimination of pain and muscle spasms - an increase in maximum opening - a decrease in lateral deviation - a marked but partial decrease in articular noises.

Dental Occlusion, Centric↗

[Biological and psychological aspects of geriatric dentistry].

A normal adult becomes a normal old man when going through a whole process of physiologic involution called natural ageing, which does not spare the stomato-gnathic system. The authors first review the biological aspects of ageing as seen on the skin and facial contour, on dentition and teeth, on periodontium, oral mucosa, tongue, salivary glands, facial and masticatory muscles, facial skeleton and temporomandibular joints. They then follow with the psychological aspects of ageing, going necessarily beyond the limits of dental medicine. The authors finally discuss means to prevent that natural ageing becomes pathologic.

Aged↗

[Bite plates and occlusal splints].

Occlusal adjustments are often necessary in cases of masticatory muscle spasm, bruxism, traumatic occlusion and TMJ disturbancies. Before such occlusal adjustments are performed, the patient should either wear a bite plate or an occlusal splint which frees the occlusion for a certain time. The splint is fabricated on a semiadjustable articulator such as the Hanau H2-XPR which is also used for the functional analysis on the models prior to any adjustments. Advantages and disadvantages of different types of plates and occlusal splints are discussed. The authors conclude that an occlusal splint covering the entire dental arch, such freeing the occlusion, seems to be the most appropriate appliance available today.

Bruxism↗