The paper discusses the application of an ecological model to social marketing communications. It highlights the need to address the inter-relationships within an individual's environment to achieve behavior change. The Social Ecological Model (SEM) is presented as a theoretical framework to understand the influences on health-related behaviors. The paper explores the limited research on applying the SEM to social marketing and emphasizes the importance of incorporating social, institutional, and policy approaches in health promotion. The aim of the paper is to investigate how a SEM can be used in social marketing communications to achieve behavior change, addressing questions related to institutions' involvement, inter-related influences, and the achievement of empowerment and social justice. The study analyzes a case study of a social marketing communications strategy implemented by NHS Health Scotland and Childsmile, focusing on children's oral health. The paper concludes by discussing the components of the SEM (microsystems, mesosystems, exosystems, and macrosystems) and the methodology used in the research, including documentary review, interviews, and observations.