Efficacy of a new software in eliminating the angulation errors in digital subtraction radiography.

Objectives: To evaluate the efficacy of a new software developed for digital subtraction radiography at tolerating the vertical and horizontal angulation changes between the X-ray source and object.

Methods: The right first molar of a preserved dry mandible was imaged with 0 degrees vertical and 0 degrees horizontal tube angulation. Then, the vertical angle was changed to +10 degrees, -10 degrees, +15 degrees and -15 degrees, and the same tooth was radiographed in each condition, accordingly.

Clinical efficacy of a new software developed for dental digital subtraction radiography.

Objectives: The aim of this study was to test and compare the efficacy of software developed recently for digital subtraction radiography (DSR) in vivo.

Methods: An algorithm performing both manual and automated image reconstructions and contrast correction was developed for the manipulation of radiographic images. Pre- and post-operative radiographic images of ten patients were obtained and the automated subtraction analyses were performed using four different softwares (new software, Emago, Photoshop 8.

Lenz microphthalmia syndrome with dental anomalies: a case report.

This report describes the dental management and 7-year follow-up of a 14-year-old boy who showed the typical characteristics of Lenz microphthalmia syndrome, a rare genetic disorder characterized by multiple abnormalities. The main features of the syndrome are microphthalmia, developmental retardation, ear abnormalities, microcephaly, skeletal, digital and urogenital anomalies. The dental anomalies include micrognathia, hypodontia, agenesis of permanent teeth, conic-shaped incisors, and taurodontic molars.

An unusual tonsillolith.

A case of a large tonsillolith of the left palatine is presented. The lesion was detected incidentally during radiographic examination of a patient presenting with right mandibular pericoronitis. The patient had no symptoms referable to the left tonsillar region.