摘要
Abstract
Objective To compare the effect of digital preformed restoration and conventional temporary restoration in continuous multi-tooth implant restoration in the aesthetic area.Methods A total of 20 patients requiring continuous multi-tooth implant restoration in the aesthetic area were selected from the Department of Implantology of Dalian Stoma-tological Hospital from August 2021 to August 2022.The patients were divided into 2 groups by random number table method and recorded as the digital group(10 cases,37 gingival papilla sites)and the conventional group(10 cases,37 gingival papilla sites)respectively.In the digital group,the location of the perforating gingival area and adjacent area of the hollow prefabricated temporary prosthesis with wing plate was precisely designed before surgery,and the digital pre-fabricated prosthesis was implanted and wom under the guidance of the digital guide.In the conventional group,implants were implanted free hand and temporary restorations were made by conventional methods.At 12 months after permanent restoration,implant survival rate and prosthesis survival rate of the two groups were compared,and the filling effect of gingival papilla was scored using Jemt papilla index score(PIS).Results The survival rate of implants and prostheses in both groups was 100％.At 12 months after permanent restoration,the PIS score distribution between the two groups was compared,and the difference was statistically significant(Z=-4.001,P＜0.001).Among them,32 sites(86.49％)in the digital group had a PIS score of 3,which was significantly higher than that in the conventional group(19 sites,51.35％).The PIS score of the digital group was(2.95±0.33)and that of the conventional group was(2.27±0.90),and the difference was statistically significant(t=4.280,P＜0.001).Among them,the difference in PIS score between implant-implant was statistically significant(t=4.479,P＜0.001).There was no significant difference in PIS scores between implants and natural teeth or between implants and bridges(P＞0.05).Conclusion Compared with the conventional group,the digital group can accurately design the location of the adjacent area of the prefabricated prosthesis,and has a better aes-thetic effect of gingival papillae 12 months after permanent restoration,so it is suggested that it should be widely used in continuous multi-dental implant restoration in the aesthetic area.关键词
牙种植/数字化设计/预成修复体/美学区/Jemt龈乳头指数Key words
dental implants/digital design/prefabricated restoration/the aesthetic area/Jemt gingival papilla index分类
医药卫生
