Dentists' Incomes (Disclosure) 94. Mr. Erroll asked the Chancellor of the Exchequer what general precedents in the post-war period exist for the action of the Board of Inland Revenue in supplying details of the income of dentists to the Ministry of Health. Mr. R. A. Butler There are no general precedents, but similar information has been supplied in respect of general medical practitioners, with the full agreement and co-operation of the professional association. For both doctors and dentists the information has been supplied in order to facilitate negotiations about remuneration under the National Health Service.