Narrowing of the dental pulp chamber in patients with renal diseases.

Narrowing of the dental pulp chamber was studied radiologically in fifty one patients with renal diseases. Two thirds of the patients were suffering from terminal uremia and were treated either by renal transplantation or with hemodialysis. The remaining patients were nonuremic and were treated with immunosuppressants because of progressive renal disease.

Determination of species- and laboratory-related interpretive breakpoints for doxycycline susceptibility testing using single-strain regression analysis.

Single-strain Regression Analysis (SRA) was performed for doxycycline on a total of 68 bacterial strains representing 16 different species. Species- and laboratory-related zone diameter breakpoints were determined and compared with histograms of zone diameter values obtained from 942 routine susceptibility tests. Calculated breakpoints were similar within individual species.

Accuracy of radiographic caries diagnosis at different kilovoltages and two film speeds.

Different kilovoltages (50, 60, 70, 90) and two films differing in speed (Kodak Ultra-Speed and Ektaspeed) were examined with regard to the diagnostic accuracy at detection of dental caries. Ten observers graded the occurrence of caries in radiographs of extracted premolars and their findings were compared with the actual presence or absence of caries. The ROC-technique was used to evaluate the results using the area under the curve as a measure of diagnostic accuracy.

Radiation dosimetry in radiology of the temporomandibular joint.

The absorbed doses and energy imparted during conventional radiography and tomography of the temporomandibular joint were examined. Absorbed doses from the lateral-oblique transcranial projection and lateral tomography were low (0.02 to 7 mGy).

An evaluation of rare-earth imaging systems in panoramic radiography.

Panoramic radiographs were made of ninety-nine consenting adult patients who had image-analysis test devices placed within their oral cavities. Quantitative characteristics and perceived image quality of eight screen-film combinations were investigated. The quantitative characteristics of the images evaluated included contrast, resolution (in three regions), and bead detection (a measure of noise).

Single-strain regression analysis for quality control of cephalothin-susceptibility testing and determination of interpretive breakpoints.

Histogram analysis of inhibition zone diameters around the 30 micrograms cephalothin disk for E. coli, P. mirabilis, and K.

Clinical and radiologic six-year follow-up study of patients with crepitation of the temporomandibular joint.

Combined clinical and radiologic follow-up investigations of patients with temporomandibular joint (TMJ) crepitation are seldom seen in the literature. The aim of the present study was to clinically and radiologically re-examine twenty-four patients with TMJ crepitation six years after treatment was completed. Eleven patients initially had unilateral crepitation and thirteen bilateral.

Sagittal splitting of the mandibular ramus. Electromyography and radiologic follow-up study of temporomandibular joint function in 44 patients.

A follow-up study was performed on 44 patients operated with sagittal splitting of the mandibular ramus for correction of a mandibular protrusion. The study included clinical examination, electromyography and masticatory efficiency test as well as radiography of the temporomandibular joint. The maximum opening capacity and protrusion of the mandible decreased one to three years after the operation.

Radiography of the temporomandibular joint utilizing oblique lateral transcranial projections. Comparison of information obtained with standardized technique and individualized technique.

An individualized technique for radiography of the temporomandibular joint utilizing oblique lateral transcranial projection is described. The patient is fixed in a cephalostat and the central ray directed through the horizontal long axis of the condyle. The information yielded when applying the individualized technique has been compared with that yielded from a standard technique and tomography.