Objective To compare the effects of resin aesthetic restoration and crown reattachment restoration in the treatment of traumatic dental injuries in young permanent teeth. Methods A total of 50 patients with traumatic dental injuries in young permanent teeth admitted to Guangzhou Hospital of Integrated Traditional Chinese and Western Medicine from November 2021 to January 2026 were selected. According to the random number table method, they were divided into the control group (n=25) and the experimental group (n=25). The control group received resin aesthetic restoration, and the experimental group received crown reattachment restoration. The restoration success rate, masticatory function recovery, aesthetic effect and subjective satisfaction were compared between the two groups. Results There was no signiffcant difference in restoration success rate between the two groups (P>0.05). There was no signiffcant difference in the proportion of no occlusion and light occlusion between the two groups (P>0.05). The proportion of good contact after treatment in the experimental group was higher than that in the control group (P<0.05). The pink esthetic score and white esthetic score in the experimental group were higher than those in the control group (P<0.05). The satisfaction with comfort, appearance, masticatory function and retention function in the experimental group was higher than that in the control group (P<0.05). Conclusion Both resin aesthetic restoration and crown reattachment restoration have high success rates in the treatment of traumatic dental injuries in young permanent teeth. Among them, crown reattachment restoration can better restore masticatory function, with better aesthetic effect and higher subjective satisfaction.