A comparison of two intraoral CCD sensor systems in terms of image quality and interobserver agreement
Schulze, D.; Rother, U.J.; Fuhrmann, A.W.; Tietke, M.
International Journal of Computerized Dentistry 6(2): 141-150
2003
ISSN/ISBN: 1463-4201 PMID: 14552151 Document Number: 566532
Two intraoral CCD sensor systems were compared with respect to image quality and interobserver agreement. Forty intraoral images from each of the sensors (Trophy RVG5, Sirona Sidexis) were examined by 4 observers in terms of anatomical landmarks and general image quality. The images were divided into 2 groups--filtered and unfiltered. Kappa values for interobserver agreement were calculated for all assessed points. The Trophy sensor showed better image quality in the filtered group, and the Sirona sensor demonstrated good image quality in the unfiltered group. Moderate to substantial interobserver agreement was achieved. The use of filters increased edge artefacts. Sensor specific artefacts in the Trophy system were observed.