Detection of experimentally induced root fractures on digital and conventional radiographs: an in vitro study.

This study compared the diagnostic accuracy of digital radiographic images with conventional radiographs for the detection of experimentally induced root fractures. Horizontal fractures were induced by a mechanical force to the root of 15 single rooted teeth. Vertical fractures were induced in 15 single rooted teeth and 15 molars, respectively, by disk cutting.

Incidence of impacted and supernumerary teeth-a radiographic study in a North Greek population.

Objectives: The aim of the present study was to investigate the prevalence of impacted and supernumerary teeth, apart from third molars.

Study Design: This was a retrospective study of 1.239 panoramic radiographs taken of patients who presented to the Department of Dentoalveolar Surgery, Implantology and Radiology at the School of Dentistry of the Aristotle University of Thessaloniki, Greece between 1991 and 1999.