s 40 Definition of business of dentistry.
(1) For the purposes of this Act a person shall be treated as carrying on the business of dentistry if, and only if, he or a partnership of which he is a member receives payment for services rendered in the course of the practice of dentistry by him or by a partner of his, or by an employee of his or of all or any of the partners. (2) Notwithstanding subsection (1) above, the receipt of payments— (a) by an authority providing national health services, or (aa) by a person providing primary dental services ... under a contract under section 100 of the National Health Service Act 2006 or an agreement under section 107 of that Act, or ... under a contract under section 57 of the National Health Service (Wales) Act 2006 or an agreement under section 64 of that Act, or (ab) by a person (other than one falling within paragraph (a) above) providing personal dental services under section 28C of the National Health Service Act 1977 or section 17C of the National Health Service (Scotland) Act 1978 , or (ac) by a person (other than one falling within paragraph ( a ) above) providing personal dental services under Article 15B of the Health and Personal Social Services (Northern Ireland) Order 1972 , or (b) by a person providing dental treatment for his employees without a view to profit, or (c) by a person providing dental treatment without a view to profit dental treatment without a view under conditions approved by the Secretary of State or the Department of Health and Social Services for Northern Ireland, shall not constitute the carrying on of the business of dentistry for the purposes of this Act.