Dental digital x-ray sensors eliminate the need for conventional film and chemicals while also reducing the amount of radiation to which patients are exposed. Essentially, they are a computer chip that is encased in hard plastic, and while older models used proprietary connectors to attach to a computer, most sensors today simply use a USB connector. Some newer models have even done away with cords altogether and communicate with the computer via a wireless protocol. In any case, you can rest assured that using a digital x-ray sensor will provide consistently crisp diagnostic images at a high resolution.