A 55-year-old male presented at the Oral Medicine Clinic
of the University of the Western Cape, Oral Health Centre,
Tygerberg Campus, for the evaluation of a persistent white
patch on his right edentulous mandibular ridge. He had
been referred from the Prosthodontics Clinic where he
was seen for complete denture rehabilitation. The patient
had no significant medical history and informed us that
he had been smoking marijuana five times a day for more
than twenty years and consumed alcohol occassionally.
He had never worn a dental prosthesis and did not use
tobacco in any form.