Section 53. The division shall include within its covered services for adults all federally optional services that were included in its state plan or demonstration program in effect on January 1, 2002. Covered services for adults in the MassHealth Essential program shall include dental services to the same extent as such services were covered for adults in the MassHealth Basic program as of January 1, 2002. To the extent permitted by the demonstration program approved under 42 U.S.C. 1315(a), covered services in the MassHealth Basic and MassHealth Essential programs shall include hospice services to the extent such services are covered in the MassHealth Standard program.