Biomedical subjects
Publications and source records attributed to C E Rieder.
Guidelines for a projected scientific presentation can assist the speaker in preparing an effective audiovisual presentation. This article highlights the factors that improve the quality of an audiovisually assisted presentation and enhance successful communication.
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Sophisticated esthetic restorative dentistry cannot routinely be developed without close coordination with laboratory personnel. Direct communication between operatory and laboratory personnel and the patient is an integral requirement for predictable results. By effectively delegating many preparatory procedures to laboratory personnel, the efficiency and quality control of operatory procedures can be greatly enhanced. Coordination of each operatory procedure with the appropriate preliminary, concurrent, and subsequent laboratory procedures can provide the patient, technician, and dentist with a mutually appreciated functional and esthetic result.
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Acomparison was made in this study of the prevalence of mandibular displacement in varying degrees of complexity with the incidence of parafunctional occlusal habits and some sequelae. The prevalence of occlusal habits in all patients was high but became greater with the increased complexity of the mandibular displacement, especially an asymmetrical slide from RCP to IP. The mulifactorial etiology of parafunctional occlusal habits and their sequelae tends to make the relationships more complex than a simple "cause and effect" and therefore must be considered.
The prevalence and magnitude of mandibular displacement from RCP to IP in a principally adult sample was evaluated. The findings and their possible clinical significance were discussed.
It was shown that there was no direct connection between maximum jaw opening and a history of TMJ symptoms (Fig. 7). An accurate diagnosis requires the evaluation of a wide range of signs and symptoms through both a history and a clinical examination.
A comparison of three methods of obtaining information relating to some TMJ signs and symptoms has been made. The taking of an oral history by this examiner was shown to be the least reliable. The acquisition of data by this verbal process is a clinically sophisticated and difficult medical procedure and a major source of error is the bias or preconception that a clinician brings to his observations. Far more effective was a written, self-administered patient questionnaire, which proved quite reliable in detecting the presence of some occlusal habits. This study indicates that the initial use of a self-administered patient questionnaire, even in the hands of an inexperienced dentist, will ensure that certain essential data are obtained and recorded and will result in the discovery that a substantial number of patients have signs and symptoms of occlusal and TMJ dysfunction. The most objective method is of course the direct clinical examination. A combination of these three methods of obtaining information is recommended as an important part of routine occlusal and TMJ examinations.
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On occasion, there is danger of TMJ injury from holding the violin in a playing position for long periods of time. A study of a patient with premature degenerative TMJ disease emphasizes the value of a routine occlusal and TMJ examination.
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The development of a simplified system for evaluation of occlusal interrelationships has been discussed in two parts. Part I concerned itself with data obtained from a Patient Questionnaire and through clinical examination. Part II has dealt primarily with the method of transcription of collected information and with data processing keypunch instructions. It is anticipated that this method of data collection will provide the vehicle for an ongoing, broad-base study of occlusal and temporomandibular joint/muscle interrelationships.