Objective To investigate the effect of 3D-printed double guides for crown lengthening on anterior dental aesthetic effect in patients with anterior region restoration. Methods A total of 40 patients with anterior region restoration admitted to Xinjiang Urumqi Stomatological Hospital from September 2023 to August 2025 were selected as the research subjects. According to the random number table method, they were divided into the control group and the observation group, with 20 patients in each group. The control group received traditional single-guide treatment, and the observation group received 3D-printed double guides for crown lengthening. The anterior dental aesthetic effect, papillary index and satisfaction were compared between the two groups. Results The scores of PES and WES in the observation group at 4 weeks, 3 months and 6 months after operation were higher than those in the control group (P<0.05). The gingival papillary indexes of the observation group at 4 weeks, 3 months and 6 months after operation were lower than those of the control group (P<0.05). There was no signiffcant difference in satisfaction rate between the two groups (P>0.05). Conclusion The application of 3D-printed double guides for crown lengthening in anterior region restoration can not only improve postoperative gingival health, but also enhance the aesthetic restoration effect of anterior teeth, with excellent patient satisfaction.