Conventional & Computer Aided Digitized Cephalometry – A Comparative Study Dr. Loomba Anju*, Professor and Head, Dr. Agarwal Preeti, Reader, Dr. Upadhyay Utkarsh, Reader, Dr. Goel Ashish, Senior Lecturer, Dr. Chandra Pratik, Post Graduate Student Department of Orthodontics, Saraswati Dental College and Hospital, Lucknow. *Address for Correspondence: Dr. ANJU LOOMBA,, Professor and Head,, Department of Orthodontics,, Saraswati Dental College and Hospital, 233 Tiwari Ganj, Faizabad Road, Juggour, Lucknow (Uttar Pradesh), Pin-277105, e-mail: al_loomba@yahoo.co.in
Abstract Introduction The study compared error in identification of various landmarks on conventional lateral cephalograms with that of scanned cephalograms and computer aided digitized cephalograms using the Dolphin 10.5(Computer Aided Digitized Cephalometric Imaging Software). Materials and Method The study samples were 30 non – orthodontic samples. The conventional lateral cephalograms were made using 8inches X 10inches dimension Kodak X ray films, each of these were scanned to transform the analogue image to digital format, using a flat bed scanner at 300 dpi and then the image was displayed on a mono chromatic monitor. All the samples were subjected to digital cephalograms in natural head posture at the same time when the conventional cephalograms were made. Results Statistically significant difference was seen in inter-observer variability when manual technique was compared either with scanned or digital technique (p<0.001). Lower inter-observation variability was seen when scanned technique is compared to digital technique. Conclusion Manual tracing technique was the most accurate with minimum variability followed by digital tracing and then the scanned technique which showed maximum variability in both planes. Top |