Introduction: The patient’s level of compliance with the dentist’s instructions is generally quite low. The willingness of patients to return to visit the dentist is influenced by several things, one of which is the patient’s satisfaction with the dentist. Patient satisfaction with the dentist is affected by effective communication between the dentist and the patient. Effective communication between the dentist and patient is communication built on the hope that it can create good interpersonal relationships, the same meaning of information, and medical decision making. Therefore, in this study, the authors intend to determine the role of effective communication in increasing patient compliance with dentist instructions. Methods: Using descriptive analytic research with quantitative data collection using the in-terview method with guidance questionnaire. The sample of the study was 33 dental patients of RSI Asyiyah Malang and Brawijaya University Hospital who had fulfilled the sample inclusion criteria. The statistical method used to be the Spearman rank correlation test with α = 0.05. Results:The percentage of patient compliance improve, according to the level of effectiveness of communication. Result of Spearman correlation test p-value is 0.002 (< α 0.05) and the correlation coefficient is 0.553. Conclusion: There is a huge role of effective communication in improving pa-tient compliance. The effectiveness of communication between dentist and patient can be caused by several factors. Effective communication that built by both, can create a good interpersonal relationship and will improve patient compliance with dentist’s instruction.