Whenever a dental association regularly incorporated under the laws of this state shall maintain and conduct in a city, other than a city of the first class, a dental clinic or clinics where indigent persons resident in the city may receive treatment and relief without charge or fee, the board or body having control of the finances of the city may appropriate and pay to that association, each year, such sum or sums, not exceeding five thousand dollars in all, as it shall deem advisable, to be used and applied by that association only for the support, maintenance and equipment in the city of a dental clinic or clinics for the free treatment of indigent persons resident in the city.

The officers of the clinic shall annually at the beginning of each fiscal year furnish to the board or body having control of the finances of the city a report of the number and kind of cases treated by the clinic together with a detailed statement of all expenditures made from any money appropriated by the city for the clinic.