摘要
Abstract
Objective The purpose of this study was to compare the aesthetic effects and periodontal health of porcelain crown and all-ceramic crown restorations.Methods A total of 80 patients(90 teeth)who underwent dental implant restoration in the hospital from January 2019 and January 2022 were randomly divided into the observation group(n=40,46 teeth,repaired with zirconia all-ceramic crown)and control group(n=40,44 teeth,repaired with Co-Cr PFM).Clinical treatments,periodontal indicators,the levels of superoxide dismutase(SOD),interferon-γ(IFN-γ),matrix metalloproteinase 2(MMP-2)and glutathione peroxidase(GP-x)in gingival crevicular fluid(GCF)were compared between the two groups.The long-term effects were compared.Results The recovery time in the observation group were shorter than those in the control group(P＜0.001).6 months after repair,plaque index(PLI)and sulcus bleeding index(SBI)in the observation group were lower than those in the control group,while probing depth(PD)was higher than that in the control group(P＜0.05).After restoration,all GCF indicators changed significantly.6 months after restoration,the levels of SOD and GP-x in GCF of the observation group were higher than those in the control group,while the levels of IFN-γ and MMP-2 were lower than those in the control group(P＜0.05).During the 12-month follow-up,the incidence rates of periodontitis and gingivitis in the observation group were lower than those in the control group(P＜0.05).The qualification rates of restoration appearance,color matching,gingival adaptability and tooth sensitivity in the observation group were higher than those in the control group(P＜0.05).Conclusion Compared with Co-Cr PFM restoration,zirconia all-ceramic crown restoration can significantly improve periodontal indicators and the expression levels of SOD,IFN-γ,MMP-2 and GP-x in GCF,with good long-term effect.关键词
钴铬合金烤瓷全冠/氧化锆全瓷冠/种植体/牙周指标/龈沟液Key words
Co-Cr PFM/zirconia all-ceramic crown/implant/periodontal indicator/gingival crevicular fluid分类
医药卫生
