This document provides an overview of various behavior models used in health promotion, including definitions, history, and applications. It discusses models such as the Health Belief Model, Trans-Theoretical Model, Theory of Reasoned Action/Planned Behavior, Social Cognitive Theory, Locus of Control, and Sense of Coherence. It also provides examples of applications of these models to oral health research, such as using the Health Belief Model to design an oral health education program and examining oral hygiene behaviors using the Trans-Theoretical Model.