Objective:To study the efficacy and success rate of dental pulp revascularization surgery for young permanent teeth with dental pulp necrosis.Method:A total of 100 young patients with dental pulp necrosis of permanent teeth admitted to Xixi Hospital of Hangzhou from March 2019 to March 2023 were selected prospectively, they were divided into the control group and the study group according to the principles of balance and randomization, with 50 cases in each group. The control group and the research group received apical induction shaping surgery and pulp revascularization surgery, respectively. The treatment success rate, root canal wall thickness, crown root ratio, and dental pulp vitality and development of the affected teeth before and after 6 months of treatment were compared between the two groups.Results:The success rate in the study group was higher than that in the control group : 94.00%(47/50) vs. 80.00%(40/50), there was statistical difference ( χ2 = 4.33, P<0.05). After 6 months of treatment, the thickness of the root canal wall in the study group was greater than that in the control group, the affected tooth crown root ratio was lower than that in the control group: (2.43 ± 0.42) mm vs. (2.25 ± 0.39) mm, 0.71 ± 0.09 vs. 0.78 ± 0.11, there were statistical differences ( P<0.05). The proportion of active dental pulp and secondary dental pulp development in the study group during the last follow-up were higher than those in the control group: 92.00%(46/50) vs. 76.00%(38/50), 94.00%(47/50) vs. 80.00%(40/50), there were statistical differences ( P<0.05). Conclusions:The use of dental pulp revascularization surgery in young permanent teeth with dental pulp necrosis can prolong the root of the affected tooth, thicken the root canal ratio, and improve the success rate of treatment by increasing dental pulp vitality and promoting root development.