Intra oral or dental films should be used for taking dental radiographs. Intraoral films do not have intensifying screens and thus need a high exposure. Dental film is available in different speeds. The sensitivity of the film determines the required exposure time faster speed higher sensitivity, requires less radiation to expose the film. Film sensitivity is increased by using larger silver halide crystals in the emulsion.Labtech Intra Oral Radiography Trainer is designed to demonstrate the operation, theory, repair and servicing of Intra Oral Radiography equipment that used at clinics & hospitals. The unit given the fault diagnosis so as to facilitate the teaching of trouble shooting techniques. A fault simulator is provided with circuit block diagram of the device for the students to study theoretically and experimentally in order to understand the operation of the device.