Objectives. To develop interactive computer-assisted learning software for teaching dental students to logically arrange periapical and bitewing radiographs. Methods. Using the Microsoft Visual Basic.NET programming language, we developed software comprising an original object menu window, workspaces, and functions for radiograph shuffling, rotating, mounting, clock, evaluation, score, easy addition of images, a virtual teacher, and help menus. We also developed a program called "Mounting of Dental Radiographs," which is composed of dental images, a menu window, workspaces, and functions. Results. On starting the program, randomly ordered radiographs from a full-mouth X-ray exam are presented, and the clock starts. The student selects one image at a time and places it in the proper folder. An image may need to be rotated or turned. When all images are mounted, the virtual teacher checks the results. If the images have not all been placed correctly within the time limit, the student is given two more attempts before being told, "You lost." This software can be easily and quickly modified, and dates and scores can be saved automatically. Conclusions. We developed a versatile, interactive software program to help students understand how to mount dental X-ray images. It can be modified easily to suit the needs of different students.