Case challenge: the case of the missing root tip.

A 43-year old female had her left maxillary first molar removed by her dentist. Upon examining the tooth following the extraction, he discovered the distobuccal root was fractured. Inspection of the extraction site revealed the missing root remained in its alveolus.

Case challenge. Chronic maxillary inflammation.

A 30-year old male was referred by a dental practitioner to the Department of Oral Radiology at the University of Lund, Sweden, for a radiological evaluation of chronic symptoms of inflammation on the right side of the maxilla. According to the patient, at age 12 he had surgery to remove a non-erupted maxillary right second premolar. Postoperatively, a draining sinus tract appeared on the buccal aspect of the alveolar process.

Ossification of the human stylohyoid ligament: a longitudinal study.

We report the results of a longitudinal radiographic study of ossification of the stylohyoid ligament in a sample of patients treated for minor malocclusions. The results suggest that the vast majority of ossified sites in the stylohyoid ligaments are established during childhood and adolescence. The mean length of the sites shows a fairly rapid, linear increase with age until the end of adolescence; any further increase is nonlinear and occurs at a much slower rate.

Imaging of the temporomandibular joint: a position paper of the American Academy of Oral and Maxillofacial Radiology.

Various imaging techniques for the temporomandibular joint are discussed with respect to uses, strengths, and limitations. An imaging protocol is outlined for evaluating patients with a wide variety of temporomandibular joint related signs and symptoms.

Detection of small differences in mass using a direct digital dental X-ray system.

Objectives: To evaluate experimentally how in direct digital radiography heterogenous detector response may influence the depiction of small mass differences.

Methods: A step wedge of a bone-simulating resin was imaged at 70 kVp using RadioVisioGraphy ZHR 32000. Exposure time and step wedge position on the detector varied.

Pneumocele of the maxillary sinus: a case report and literature review.

A panoramic radiograph of a 27-year-old female who had sustained midfacial trauma incidentally revealed a greatly expanded, hyperlucent right maxillary sinus. Further radiological exploration, including tomography, demonstrated that the expansion was mainly localized to the inferomedial part of the antrum with encroachment on the nasal and oral cavities. ENT examination was unremarkable.

Modern management of dental caries: the cutting edge is not the dental bur.

Treating the disease, not the symptoms, is the change in managing dental caries. As researchers supply the tools, dentists can apply more efficient and realistic methods for better patient care.

Saliva secretion from the rat submandibular gland after retrograde infusion of radiographic contrast media.

Rat submandibular saliva was collected at various times after retrograde infusion of water-soluble (Renografin 60%) or lipid-soluble (Lipiodol UF) radiographic contrast medium. Significant alterations in flow rate occurred following heavy parenchymal filling with both types of contrast media. Occasional changes in protein concentration, lactoperoxidase activity, and K+ levels were also noted.

A morphologic study of the recovery of the rat submandibular gland after retrograde infusion. I. Water-soluble radiographic contrast medium.

The recovery of the rat submandibular gland after retrograde infusion of water-soluble radiographic contrast medium was studied using an experimental model. During continuous monitoring of the developing intraglandular pressure, the glands were subjected to ductal and slight parenchymal filling or heavy parenchymal filling with the medium. The animals were killed after varying recovery periods, and the tissue was prepared for light and electron microscopic examination.

Double-contrast tomography of the temporomandibular joint. A new technique based on autopsy specimen examinations.

Double-contrast tomography was applied to temporomandibular joint autopsy specimens. Both joint compartments were given successive injections of air-iodine contrast medium-air. Tomography was performed in lateral and a.

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.