Ravinder Kaur, 33, of Ettrick Drive, Bedford, was reprimanded after she left a patient in a dentalchair and went to lunch, Blackfriars Crown Court heard.
Dr Anne Dingwall, chair of the RCHT's senior medical and dental staff committee, said after the meeting on Tuesday night that the removal of Mr Watkinson was "destructive and jeopardised current and future healthcare in Cornwall".