Interpretation of artificial and in vivo periapical bone lesions comparing conventional viewing versus a video conferencing system.

The purpose of this study was to compare the interpretation of conventional radiographs transmitted by a video teleconferencing system to conventional viewbox interpretation for both artificial and in vivo periapical bone lesions. A total of 30 radiographic images were used in this study: 20 radiographic images of artificial lesions and 10 radiographs from actual patients. Two endodontists evaluated the 30 images by giving a "yes" or "no" response when determining whether a periapical lesion was present on the radiograph. The study was conducted in two sessions, separated by a 6-wk interval to minimize evaluator recall. Results of the study revealed no statistical difference between the ability of the evaluator to identify periapical bone lesions using conventional radiographs on a viewbox and his ability to interpret the same images transmitted on a monitor screen.

Use of the microscope in endodontics: a report based on a questionnaire.

A survey regarding operating microscope (OM) usage and training was mailed to 3356 active members of the American Association of Endodontists (AAE) in the United States. Data from 2061 questionnaires indicate that 52% of the endodontists surveyed have access to and use the OM in their practice. The frequency of use as a function of years since completing endodontic training was as follows: < 5 yr, 71%; 6 to 10 yr, 51%; and > 10 yr, 44%. The OM was used most often for retrieval of separated instruments, root-end preparations, and root-end fillings. Of the respondents who use the OM, 36% report they do not use it as often as anticipated. The most common reasons reported were positional difficulties, inconvenience, and increased treatment time. The information collected from the survey reveals that the more training the operator has on the microscope, the more likely he or she is to use it for all procedures.