This study aimed to evaluate clinical outcome of diode laser usage versus conventional surgical technique in management of delayed erupted tooth.  Twenty Egyptian child patients suffering from delayed erupted tooth were participated in this study. Patients were properly assessed for delayed eruption. A periapical x-ray films were taken in order to evaluate the degree of root formation, which were appeared developed by 2/3. The patients were randomly assigned to two groups: Group I, controlled group (10 patients) were received exposure of delayed erupted tooth (DET) by conventional method. Groups II, test group (10 patients) were treated by diode laser. The laser wavelength was 935 nm and set in a continuous wave mode at a power output of 1.6 watt with a 0.4-mm diameter fiber. Follow up, patients were evaluated clinically: Bleeding assessment and Pain assessment. The findings of the present study demonstrated that laser group showed that VAS score of pain on day 1 and 7 are significantly lower in the laser group as compared to the surgical group. Laser group showed relatively less bleeding than surgical group and the difference was statistically significant.