There are several advantages of digital x-ray imaging over analog film imaging that can benefit the clinician are:
reduced time,
reduced radiation,
ability to take multiple exposures without repositioning the sensor,
storage and maintenance of the images,
and electronic transmission of images.
Digital radiography advantage :
Enhanced X-ray image quality. Clarity and detail are crucial in dental imaging. Digital X-ray equipment provides image quality that can surpass traditional film, bringing out tiny fractures and imperfections that might have been missed on film.
In addition to the right answer of C K Gomathy, with digital radiography a lot of analysis can be performed in order to optimize contrast and luminosity of the images, and moreover all the research in diagnostic imaging is based on digital image, mainly in dicom or nifti format.
Nowadays there are 2 type of digital imaging: direct and indirect; the first one has a direct conversion of X-ray in digital images (DR); the second one needs an external support to convert the X-ray in digital images (CR).
Digital files require less physical storage and can be reached within seconds with the right digital storage architecture, also can be shared with other clinician without the need of physically send them and to keep a backup or encrypt sensible files,
The dose is the same since we are talking about different saving methods,
Also 3D data can be explored and visualized in a more efficient way,
1- Lower dose of radiation required as both types of digital image receptors are much more efficient at recording photon energy than conventional films.
2- No need for conventional processing, thus avoiding all processing film faults and the hazards associated with handling the chemical solutions.
3- Easy storage and archiving of patient information
4- Easy transfer of images electronically (teleradiology).
5- Image enhancement and processing which include: (Inversion (reversal), Alteration in contrast, embossing or pseudo 3-D, Magnification, Automated measurement, image subtraction).