数字化口内印模技术在后牙种植单冠修复中的应用效果

Objective To explore the application effect of digital intraoral impression technology in the restoration of posterior dental implant crowns. Methods A total of 150 patients from September 2020 to September 2025 who received posterior dental implant single crown restoration treatment in the dental department of Xi'an Gaoxin Hospital were selected, and divided into the control group(75 cases, using traditional silicone rubber impression technology for implant restoration) and the study group(75 cases, using digital intraoral impression technology for implant restoration). Both groups were followed up for 6 months. The clinical operational efficiency, restoration accuracy, peri-implant soft tissue health status, restoration success rate, and complications in both groups were compared. Results Compared to the control group, impression operation time and total restoration production cycle in the study group were shorter(P<0.05), impression remaking rate was lower(P<0.05), and success rate of one-time restoration was higher(P<0.05). Immediately after wearing and 6 months after repair, compared to the control group, the marginal gap in the study group was smaller(P<0.05), and the number of bite adjustments was less(P<0.05). After 6 months of repair, the edge tightness of the study group was higher(P<0.05). After 6 months of repair, modified plaque index(mPLI), modified sulcular bleeding index(mSBI) and probing depth(PD) in both groups increased(P<0.05), but compared to the control group, the study group was lower(P<0.05). In the success rate of repair, both groups were no statistically significant differences(P>0.05). Compared to the control group, the incidence of complications during the follow-up period in the research group was lower(P<0.05). Conclusion The application of digital intraoral impression technology in posterior dental implant single crown restoration can shorten the impression operation time and restoration production cycle, reduce the impression remake rate, improve the success rate of one-time insertion and restoration accuracy, facilitate long-term maintenance of soft tissue health around the implant, reduce the incidence of complications, and have a shortterm restoration success rate comparable to traditional impressions.