The Evidence Based Dentistry (EBD) is very slightly known in Iran and has been defined as an approach to the oral healthcare that requires the judicious integration of systemic assessments of clinically relevant scientific evidences, relating to the patient’s oral, medical conditions and histories among with dentist’s clinical expertise and the patient’s treatment needs and preferences.[1-5] EBD is a popular medical field activity in the whole world, involving the utilization of the results of clinical dental research that improves decision-making procedures to render the best treatment available to patients, determining the highest-quality treatment methods.[6, 7]