Which of the following strategies can improve access to dental care for underserved populations?

Offering sliding scale payment options for dental services is a strategy that directly addresses financial barriers that often prevent underserved populations from accessing dental care. By adjusting the cost of services based on a person's ability to pay, this approach makes dental care more affordable and accessible to those with limited financial resources. It recognizes the economic disparities that exist within communities and provides a flexible payment method that can greatly enhance participation in dental care services among low-income individuals.

In contrast, restricting dental education programs would likely reduce the number of trained professionals available to serve these populations, exacerbating the existing shortage of dental providers. Limiting outreach initiatives could result in fewer opportunities for underserved individuals to receive care or education about dental health, further isolating them from necessary services. Encouraging private dental practices may not necessarily enhance access for underserved groups, as these practices might prioritize profitability over providing affordable care, potentially maintaining or increasing barriers for those in need.