Objective To analyze the effect of zirconia all-ceramic crown on oral function and periodontal tissues in patients undergoing maxillary anterior teeth restoration. Methods A total of 60 patients who underwent maxillary anterior teeth restoration in our hospital from January 2023 to December 2024 were selected as the research subjects, and they were divided into the control group and the observation group by the random number table method, with 30 patients in each group. The control group was treated with conventional porcelain crown restoration, and the observation group was treated with zirconia all-ceramic crown restoration. The oral function, periodontal tissue improvement, aesthetics and satisfaction were compared between the two groups. Results After restoration, the scores of speech function, masticatory function and fixation function in the observation group were better than those in the control group (P<0.05). The gingival index, periodontal pocket depth and plaque index in the observation group were better than those in the control group (P<0.05). The scores of color matching, tooth anatomical shape, marginal gingival discoloration and marginal adaptation in the observation group were better than those in the control group (P<0.05). The satisfaction rate in the observation group was 96.67%, which was higher than 70.00% in the control group (P<0.05). Conclusion For patients undergoing maxillary anterior teeth restoration, using zirconia all-ceramic crowns can improve their oral function and periodontal tissue conditions, as well as increase their restoration satisfaction and aesthetics, which is worthy of clinical application.