Final answer:
Advocates for change in dental public health use strategies including grassroots movements, policy change, data collection, and litigation, but not ignoring the issue.
Step-by-step explanation:
To initiate change in dental public health, advocates employ various strategies. These methods include grassroots movements, pursuing policy change, data collection and research, as well as the mobilization of public and professional opinion. However, one method that is NOT typically used by advocates to initiate change in dental public health is to ignore the issue. In fact, ignoring a problem is counterproductive to the goals of policy advocates. Advocates would instead analyze existing policies, develop proposals, and employ strategies like litigation or bottom-up change initiatives to bring about improvement in dental public health systems. Effective advocacy relies on engaging various stakeholders and communicating the need for change, not avoiding the issues at hand.