Objective To analyze the effect of cluster nursing on restoration effect and periodontal health indicators in patients undergoing porcelain-fused-to-metal crown restoration. Methods A total of 150 patients who received porcelain-fused-to-metal crown restoration in the Department of Stomatology, Guangdong Armed Police Corps Hospital from April 2024 to April 2025 were selected, and they were divided into the reference group and the experimental group by the random number table method, with 75 patients in each group. The reference group received conventional oral restoration nursing, and the experimental group received cluster nursing. The restoration effect, masticatory function, periodontal health indicators, satisfaction and complication rate were compared between the two groups. Results The excellent and good rate of restoration in the experimental group (98.67%) was higher than that in the reference group (90.67%) (P<0.05). The occlusal force and masticatory efficiency in the experimental group after nursing were higher than those in the reference group (P<0.05). The PLI, SBI and GI of the experimental group after nursing were all lower than those of the reference group (P<0.05). The satisfaction rate of the experimental group (98.67%) was higher than that of the reference group (89.33%) (P<0.05). The incidence of complications in the experimental group (2.67%) was lower than that in the reference group (13.30%) (P<0.05). Conclusion The application of cluster nursing in porcelain-fused-to-metal crown restoration can effectively improve the restoration effect, masticatory function and satisfaction, optimize the periodontal health indicators, and reduce the incidence of complications, which is worthy of clinical application.