Radiographic images are practically used in dental clinic. In particular, intraoral radiography is more commonly used to diagnose dental diseases. A training simulator for intraoral radiograph we have developed enables trainees to practice this radiographic method, where X-ray and film are unnecessary. This simulator consists of a gypseous dental model, the lab-made devices in order to site indicator cone and film. The computer simulates the radiographic image drawn in the positional relationship between, the dental model, film, and indicator cone. In this paper, we embed a function to evaluate the simulation image to the simulator. Then, the fundamental functions of this training system are discussed.
