A total of at least 78 patients aged from 6-8 years will be included. All participants will be divided equally into two groups. Study group TPD using smartphone application and Control group (Tell-Show-Do) (TSD) using traditional behavior management technique.~Dental anxiety using Venham's Picture Test and heart rate using pulse oximeter will be assessed during dental treatment
evaluating the effectiveness of smartphone applications (Tell-Play-Do) (TPD) in reduction of preoperative anxiety in children undergoing restorative treatment, as measured by heart rate and Venham's Picture Test.