Objective: To explore the application effect of digital intraoral scanning impression technique in oral implant restoration for periodontitis patients and analyze its impact on patients’ Visual Analogue Scale (VAS) scores. Methods: A total of 80 periodontitis patients who received implant restoration in our hospital from May 2023 to May 2025 were selected as research subjects. They were randomly divided into an observation group and a control group using a random number table method, with 40 cases in each group. The observation group used the digital intraoral scanning impression technique to obtain impressions, while the control group used the traditional silicone rubber impression technique. The impression-taking time, the number of prostheses try-ins, implant survival rate, periodontal health indicators (probing depth, gingival index, bleeding index), and VAS scores (pain during treatment and comfort after restoration) were compared between the two groups. Results: The observation group was superior to the control group in terms of impression-taking time, the number of prostheses try-ins, and implant survival rate (p < 0.05). Six months after restoration, the improvement in periodontal health indicators in the observation group was significantly better than that in the control group (p < 0.05). In addition, the pain VAS score of the observation group during treatment was lower than that of the control group, and the comfort VAS score after restoration was higher than that of the control group (p < 0.05). Conclusion: Digital intraoral scanning impression technology can effectively enhance the efficiency and success rate of implant restoration in periodontitis patients, improve periodontal health, alleviate patients’ discomfort during treatment, and increase post-restoration comfort, demonstrating high clinical application value.
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