Dental OSCE (Objective Structured Clinical Examination) Practice Exam

Which type of film requires the least amount of radiation?

1. A-speed film

2. C-speed film

3. D-speed film

4. E-speed film

The correct answer is: E-speed film

E-speed film is known for its sensitivity to radiation, requiring the least amount of exposure compared to other types of dental films. This superior sensitivity allows for effective imaging while minimizing patient radiation dose, making it a more favorable option in clinical practice. The enhanced speed is due to the type and amount of emulsion used in the film, which captures more of the radiation and converts it into a diagnostic image more efficiently. In contrast, A-speed, C-speed, and D-speed films require progressively more radiation to achieve adequate image quality, resulting in higher doses for patients when compared to E-speed film. This aspect is particularly important in dental practice, where reducing radiation exposure is a key concern for ensuring patient safety without compromising the quality of imaging necessary for diagnosis and treatment planning.