When new radiographs are taken, the previous radiographs are

sent to the patient.
stored in another location other than the dental office.
discarded.
placed in a coin envelope, labeled, and kept in the patient file.

placed in a coin envelope, labeled, and kept in the patient file.

Rationale: placed in a coin envelope, labeled, and kept in the patient file – Never discard or destroy original radiographs or give them to anyone, including the patient or an insurance company.