; and (B) shall exclude dental health aide therapist services from services covered under the program. (3) Election of Indian tribe or tribal organization (A) In general Subparagraph (B) of paragraph (2) shall not apply in the case of an election made by an Indian tribe or tribal organization located in a State (other than Alaska) in which the use of dental health aide therapist services or midlevel dental health provider services is authorized under State law to supply such services in accordance with State law. (B) Action by Secretary On an election by an Indian tribe or tribal organization under subparagraph (A), the Secretary, acting through the Service, shall facilitate implementation of the services elected. (4) Vacancies The Secretary shall not fill any vacancy for a certified dentist in a program operated by the Service with a dental health aide therapist. (e) Effect of section Nothing in this section shall restrict the ability of the Service, an Indian tribe, or a tribal organization to participate in any program or to provide any service authorized by any other Federal law. . 112. Health professional chronic shortage demonstration programs Title I of the Indian Health Care Improvement Act ( 25 U.S.C. 1611 et seq.) (as amended by section 101(b)) is amended by adding at the end the following: 123. Health professional chronic shortage demonstration programs (a) Demonstration programs The Secretary, acting through the Service, may fund demonstration programs for Indian health programs to address the chronic shortages of health professionals. (b) Purposes of programs The purposes of demonstration programs under subsection (a) shall be— (1) to provide direct clinical and practical experience within an Indian health program to health profession students and residents from medical schools; (2) to improve the quality of health care for Indians by ensuring access to qualified health professionals