[Application of 3D oral scanning combined with digital guide plate in implant restoration of mandibular posterior dentition defect].

PURPOSE: To investigate the value of 3D oral scanning combined with digital guide plate in implant restoration of mandibular posterior dentition defect.

METHODS

A total of 96 patients with mandibular posterior dentition defects treated in Hangzhou Stomatology Hospital from March 2021 to October 2022 were randomly divided into control group (48 cases) and experimental group (48 cases). The control group was treated with conventional implant repair, while the experimental group was treated with 3D oral scanning combined with digital guide plate implant repair. The operation related indexes, implant accuracy, implant stability, alveolar ridge and parietal bone absorption of the two groups were compared, and the implant success rates, complication rates and patient satisfaction were also evaluated.

RESULTS

There was no significant difference in postoperative pain time and swelling time between the two groups(P＞0.05), but the surgical time in the experimental group was significantly shorter than that in the control group(P＜0.05). The crown deviation, root deviation, depth deviation and angle deviation in the experimental group were significantly smaller than those in the control group(P＜0.05). The success rate of the experimental group was significantly higher than that of the control group(P＜0.05). There was no statistically significant difference in the planting success rate and stability coefficient between the two groups(P＞0.05), and the absorption of alveolar crest bone in the experimental group was significantly lower than that in the control group(P＜0.05). The total incidence of complications in the experimental group was significantly lower than that in the control group (P＜0.05). The satisfaction of patients in the experimental group was significantly higher than that in the control group(P＜0.05).

CONCLUSIONS

The application of 3D oral scanning combined with digital guide plate in implant restoration of mandibular posterior dentition defect can effectively shorten the operation time, improve the accuracy of implant, reduce the complications, and improve patients' satisfaction.