262. In this Part—
“the base amount” means the aggregate of the benefits that would be payable separately under Part 2 and Part 3 but for the operation of this Part;
“calculation method A” means the calculation method provided for in regulation 270;
“calculation method B” means the calculation method provided for in regulation 271;
“calculation method C” means the calculation method provided for in regulation 272;
“officer” has the same meaning as in Part 2;
“practitioner” has the same meaning as in Part 3;
“principal medical practitioner” means a principal medical practitioner (as defined in Part 3), who is employed by a dental performer (as defined in Part 3) but who is neither a partner in, nor a director of, the dental performer's business;
“uprated earnings” has the same meaning as in Part 3.