IRCT2016091029765N1 IRCT 2016-11-09 Vice Chancellor for research of Tehran University of Medical Sciences.Research Center for Electronic training of physicians in the field of pediatric dentistry and oral health Comparison of physicians training via smart phone applications in the field of pediatric oral health with traditional continuing education in Tehran 2016-10-10 anticipated 235 Complete https://irct.ir/trial/23837 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Health service research, Other design features: simple random randomization. N/A General physician's knowledge, attitude and behavior in pediatric oral health. Intervention 1: Group 1: Training through Smart Phone Application. Smart phone application will be developed with a content which has been extracted from the booklet of other intervention group. The application also has the dynamic section for asking questions and a tutorial of how to work with it. Reminders for using it will be sent twice a week. Intervention 2: Group 2: Traditional continuing education (CE) method. As traditional CE method a booklet will be used. The booklet contains information on pediatric oral and dental disease (caries and its etiology, signs and care, dietary habits, fluoride therapy, fissure sealants, and dental traumas). Also there would be a lecture session for this group in which the participants can ask their questions regarding oral health. Every month a reminder text message will be sent to them.