Objectives. The purpose of this study was to investigate the relationship between factors influencing smooth communication between dental workers. Proper interpersonal communication among dental workers can increase the satisfaction of patients. Methods. A survey was performed from January to April 2009 of 543 subjects (dentists, dental technicians, dental hygienists) living in the capital area of Seoul, Gyeonggi-do and Incheon Korea. The search tool was a structured questionnaire. The data collected were analyzed by frequency, descriptive statistics, chi-square test, Pearson`s correlation coefficient and multiple logistic Regression using the SPSS version 12.0. Results. Communication between dental workers afects patient satisfaction: this item was rated with more than 4 point on a 5 point Likert scale (p=.005). Communication between dental workers and communication between dental clinic and the dental laboratory also increased patient satisfaction (p＜.05). When communication between the dental clinic and the dental laboratory was smooth, it will decrease to remake dental prosthesis (p=.041). Conclusions. Proper communication between dental workers increases patient satisfaction while reducing the need for remaking dental prosthesis. Therefore dental workers should share information with patients, and try to increase patient satisfaction.