This article describes a typology of program models for expanding access to dental services for people living with HIV/AIDS (PLWHA). These programs serve communities with limited access and high unmet need for oral health care, such as rural areas, low-income and racial/ethnic minorities. Interviews and site visits with dental and program directors were conducted at participating sites, including AIDS service organizations, community health centers, and university-affiliated medical centers or hospitals. Despite the differences across organizational structure, similar models and approaches were developed to engage and retain PLWHA in dental care. These approaches included: using mobile dental units; expanding the type and availability of previous dental services provided; providing training opportunities for dental residents and hygienists; establishing linkages with medical providers; providing transportation and other ancillary services; using dental case managers and peer navigators to coordinate care; and patient education. This typology can assist program planners, medical and dental care providers with service delivery strategies for addressing the unmet need for oral health care in their area.