Background: Mandibular fractures are among the most common maxillofacial fractures which affect talking and swallowing ability. Aim: To evaluate the effect of implementing teaching program on patient outcomes suffering from mandibular fracture. Design: Quasi-experimental research design was used in this study. Setting: The current study was conducted at Plastic & Reconstructive Burn Center and Mansoura university hospital. Sample: A purposive sample of 80 conscious adult patients with mandibular fracture was recruited in the study. Tools of the study: Three tools were