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Biomedical subjects

M Kundert

Publications and source records attributed to M Kundert.

11 recordsLinked to original sources
PubMed1980

Condylar displacement after sagittal splitting of the mandibular rami. A short-term radiographic study.

In a radiographic follow-up study the extent, frequency and direction of condylar displacement after surgical correction of bite anomalies by sagittal splitting of the mandibular rami was investigated. 35 patients were involved in the study. Pre- and post-operatively P.A.-views of the skull, linear tomograms and individualized lateral oblique radiographs of each temporomandibular joint were taken. Postoperative changes of condylar position were measured on the lateral oblique radiographs. The results indicate that condylar displacements are found frequently after sagittal splitting of the rami. Most of them are combined with rotation or tilting of the axis of the condyle or the condylar neck. Method of osteosynthesis and direction of movement of the tooth bearing fragment seem to influence the direction and amount of condylar displacement.

Adolescent↗
PubMed1979

Limits of perceptibility of condyle displacements on temporomandibular joint radiographs.

The present study investigated to what extent condyle positions have to be different from each other in order to be clearly detectable under clinical conditions on serial radiographs of the temporomandibular joints in identical projection. For that purpose of ten test subjects serial radiographs in optimal lateral oblique and identical projection were made with various positions of the joint. The joint was brought to these positions by displacement of the mandible to an exactly known extent with a special device. Evaluation showed that mean differences between condyle positions of 0.61 +/- 0.16 mm can be recognized clearly. It was statistically proved that this value did not depend upon the experience of an examiner in reading radiographs but upon the technical quality and the interpretability of the radiographs as well as upon the radiographic dimension of the posterior joint space.

Adult↗
PubMed1978

[Total prosthesis--a review of the literature].

A review of literature on full denture prosthetics is given with reference to the newest scientific results with clinical relevance. Presently, the accent seems to be on gerontological problems, on basic research of the denture bearing tissues and on the entire masticatory system after loss of teeth and under the influence of prosthetic rehabilitation. Finally research on dental materials and on microbiological problems are raised. An increasing number of investigations critically deals with existing and clinically proven methods and concepts of full denture construction. In the review of literature special fields like hybrid prosthetics and defect prosthetics have not been included, prosthetic materials only in special instances.

Adult↗
PubMed1977

[Interpretation and misinterpretation in occlusion diagnostic radiography of the temporomandibular joint].

Methodical procedure is of considerable importance in interpreting radiographs of the temporomandibular joint. Under this aspect the technique used at the Dental School of the University of Zurich, Department of Prosthodontics, is described. Two principal steps are distinguished for the evaluation of a radiograph: valuation and interpretation. In order to make clear radiographic anatomy and characteristics of projection of the joint region two didactic models are introduced. Problems, limits and pitfalls in interpreting radiographs of the temporomandibular joint in oblique lateral projection are shown.

Humans↗
PubMed1976

[The value of Schüller's temporomandibular joint radiography for the diagnosis of joint related malocclusion].

A tentative diagnosis of the supposed position of the condyle in its glenoid fossa was made for 150 temporomandibular joints only be means of Schuller radiographs. To determine the value of the radiographs for diagnosis of occlusion the radiologic diagnosis of each joint was then compared with the real diagnosis based upon instrumental functional analysis of the occlusion, clinical findings and individually projected radiographs of the joint. Radiologic diagnosis and real diagnosis coincided to a relatively high degree provided that the radiographs were readable. Very high correspondence was found for anterior and posterior displacement of the condyle whereas supperior, inferior and lateral displacement showed considerably less coincidence. By the Schuller technique 30 of the 150 joints were not represented readably and better projection by a different angulation of the central X-ray beam was possible for half of those only. Posterior displacement of the condyle was found to be the most frequent malposition of the joint in this study.

Humans↗