To explore the application of improved E-word intraoral scanning in the production of orthodontic digital impression.

A total of 120 patients who underwent orthodontic treatment with digital impression technology in Nanjing Stomatological Hospital, Medical School of Nanjing University from March 2022 to March 2024 were selected. According to the random number table method, they were divided into the experimental group (the scanning method was modified E-word intraoral scanning) and the control group (the scanning method was segmented method), with 60 cases in each group. The scanning time, scanning comfort, orthodontic effect and satisfaction were compared between the two groups.

The scanning time of the experimental group was significantly shorter than that of the control group, and the comfort score was significantly higher than that of the control group, with statistically significant differences (P<0.05). The total effective rate of the experimental group was higher than that of the control group, with a statistically significant difference (P<0.05). The satisfaction rate of the experimental group was higher than that of the control group, with a statistically significant difference (P<0.05).

The modified E-word intraoral scanning can significantly improve the scanning efficiency, patient comfort, orthodontic effect, satisfaction, and improve the impact of oral health problems on the quality of life.