Objective To explore the effect of scientific repair concept in the process of oral cosmetic repair. Methods A total of 80 patients who underwent oral cosmetic repair in our hospital from February 2021 to December 2022 were selected as the research objects. According to the random number table method, they were divided into control group and observation group, with 40 patients in each group. The control group was repaired with conventional principles. The observation group introduced the concept of scientific repair on the basis of the control group. The repair effect, satisfaction, complications and recurrence were compared between the two groups. Results The total effective rate of repair in the observation group was 95.00%, which was higher than 80.00% in the control group, and the difference was statistically significant (P <0.05). The repair satisfaction of the observation group was 100.00%, which was higher than 90.00% of the control group, and the difference was statistically significant (P <0.05). The complication rate and recurrence rate of the observation group were lower than those of the control group, and the difference was statistically significant (P <0.05). Conclusion The application of scientific repair concept in oral cosmetic repair can ensure higher repair effect, improve patients' repair satisfaction, reduce the risk of complications and recurrence rate, which is worthy of clinical application.