数字化印模与传统印模用于单颗后牙种植修复的美学效果及对患者咀嚼功能的影响对比OACSTPCD

Objective To explore the aesthetic effect of digital impression and traditional impression on single posterior implant restoration and its effect on chewing and occlusal function.Methods 80 patients(80 affected teeth)who needed a single posterior molar implant from November 2022 to July 2022,were randomly divided into digital group(single number,n=40,40 affected teeth)and traditional group(double number,n=40,40 affected teeth)according to the single and double number method.The digital group was repaired by digital impression method,and the traditional group was repaired by traditional impression method.The clinical operation time and intraoperative discomfort were compared between the two groups.The repair effect(appearance,color change and edge adhesion)of the two groups immediately after implantation,6 months and 12 months after implantation,the chewing function(chewing efficiency and bite force),periodontal health indicators[plaque index(PLI),periodontal pocket depth,bleeding index(BI)]and gingival crevicular fluid inflammation indicators[tumor necrosis factor(TNF-α)and high-sensitivity-C-reactive protein(hs-CRP)]and aesthetics[aesthetic scale(AC)evaluation]at 12 months after implantation were compared between the two groups.Results The clinical operation time and intraoperative pain score of the digital group were significantly lower than those of the traditional group(P＜0.05).Immediately after implantation,there were no significant differences in appearance,color change and edge fit between the two groups(P＞0.05).At 6 months and 12 months after implantation,there were no significant differences in appearance and color change between the two groups(P＞0.05).The edge fit of the numerical group was significantly better than that of the traditional group at 6 and 12 months after implantation(P＜0.05).After 3 months of implantation,the masticatory efficiency and bite force of the two groups increased significantly(P＜0.05),and the digital group was significantly higher than the traditional group(P＜0.05).At 3 months after implantation,the PLI,BI and periodontal pocket depth of the two groups decreased significantly(P＜0.05),and the digital group was significantly lower than the traditional group(P＜0.05).At 3 months after implantation,the levels of TNF-α and hs-CRP in the two groups were significantly decreased(P＜0.05),and the levels in the digital group were significantly lower than those in the traditional group(P＜0.05).At the 12 th month after implantation,the tooth shape,color,aesthetics and total score of AC score in the digital group were significantly higher than those in the traditional group(P＜0.05).Conclusion Compared with traditional impression,digital impression used in the single posterior molar implant restoration has higher accuracy,better improvement of the masticatory function,periodontal health and gingival crevicular fluid inflammation,and higher long-term repair effect and implant aesthetics,which is worthy of recommendation.