Do most USA dentists use the same software?

Have most USA dentists “gone digital” for X-rays, diagnostic records, etc?

If so, do they use a standard software package/suite that allows for easy transfer and exchange of patient records?

If various SW packages are used, I assume they must have compatible file types and formats, etc. Correct?

Does anyone in the profession [dentistry, or dental sw vendors/developers] have info about this?