U.K. healthcare regulators issue a new warning on a decade-old concern for certain Carestream Health dental X-ray units.

Healthcare regulators in the U.K. revived a 10-year-old equipment concern regarding certain Carestream Health intra-oral dental X-ray units, warning that there may be devices out there that haven’t received necessary “modification” to mitigate a falling equipment risk.

The X-ray systems, manufactured by Trophy, which is now owned by Carestream, were the subject of warnings issued in 1995 and 2000, but ongoing surveillance and recent investigations into breakages showed that not all devices received the maintenance they required, according to a safety notice issued by Carestream.