Objective To explore the effect of porcelain crown technique in oral aesthetic restoration. Methods A total of 64 patients who underwent oral aesthetic restoration in the Department of Stomatology, Beijing Nuclear Industry Hospital from January 2023 to February 2024 were selected as the research subjects. According to the random number table method, they were divided into the control group (n =32) and the observation group (n =32). The control group was repaired with cast porcelain veneer, and the observation group was repaired with porcelain crown technique. The aesthetic restoration effect, long-term effect and restoration satisfaction were compared between the two groups. Results The scores of restoration margin, restoration integrity, marginal staining and color matching in the observation group were higher than those in the control group (P <0.05). The proportion of intact restorations in the observation group was higher than that in the control group, and the proportion of gingival inflammation was lower than that in the control group (P <0.05). There was no significant difference in the proportion of restoration failure and restoration fracture between the two groups (P >0.05). The restoration satisfaction rate of the observation group (96.88%) was higher than that of the control group (75.00%) (P <0.05). Conclusion Compared with conventional cast porcelain veneer restoration, the application of porcelain crown technique in oral aesthetic restoration has better aesthetic restoration effect, higher proportion of intact restorations, lower proportion of gingival inflammation, and higher patient satisfaction with the restoration effect.