The aims of the study were to determine how frequently oral potentially malignant disorders (OPMDs) transform to cancer and to identify clinical and histological factors determining the rates of transformation. The study cohort  included 1357 patients with biopsy-confirmed OPMDs seen at Guy’s Hospital between 1990 and 1999 and followed up until 2005.  The patients’ details … Continue reading Malignant transformation rates in oral potentially malignant disorders