The radiographic film is covered with what type of emulsion?

The radiographic film is covered with an emulsion that contains silver bromide salts, which are essential for the film’s ability to record images. When the film is exposed to ionizing radiation, silver bromide crystals in the emulsion become ionized and create latent images that can later be developed into visible images. The emulsion layer is sensitive to light and x-rays, which allows for the capturing of detailed dental images.

The use of silver bromide is fundamental in traditional film radiography because it provides the necessary sensitivity and contrast necessary for diagnostic purposes. Other options, like cellulose, are materials that may be present in the film base but are not responsible for the radiographic sensitivity. Silver acetate is not typically used in dental radiography and does not share the same properties as silver bromide. Potassium bromide serves a different role, being used in developer solutions rather than as a component of the film emulsion itself.