The National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health, solicits applications for research that develops and tests new conceptual frameworks, models, and theories that explain the complex relationships between behavioral and social factors and oral health. Of particular interest are models accounting for self-care health behaviors related to maintaining dental and oral health (e.g., daily oral hygiene), seeking preventive care or treatment, engaging in health behaviors strongly associated with oral health or disease (e.g., tobacco, alcohol or other drug use, attention to nutrition, management of diabetes, eating disorders, etc.), and health behaviors related to serious or chronic illnesses of the craniofacial complex (e.g., cancers, craniofacial anomalies, infection related to HIV, TMJ, etc.).