Evaluation Of Short-term Clinical Effect And Analysis Of Influencing Factors In Patients Of Chronic Periodontitis

Objective: This study attempts to analyze various possible risk factors on the clinical efficacy of implant restoration in patients with chronic periodontitis.Methods: A total of 57 patients(122 implants)who underwent implant restoration in the Department of Periodontal Disease,Affiliated Stomatological Hospital of China Medical University fromJanuary 2015 to December 2021 were selected as the study objects.Research indicators include modified plaque index,probing the depth,modified sulcus bleeding index and marginal bone loss.The width of the keratinized gingiva,the material of the prosthesis,and the adjacency relationship were divided to compare the differences of mPLI,PD,and mSBI of the implants in each group.Univariate analysis was performed on the influencing factors of implant MBL at patient level,implant level and repair level.Results: 1.There was no statistical significance in PD,mPLI and mSBI of different keratinized mucosa widths(P > 0.05).2.The PD and mPLI of polymeric porcelain group were higher than those of zirconia group,and the differences were statistically significant(P < 0.05).The mSBI of polymeric porcelain group was higher than that of zirconia group,and the difference was not statistically significant(P > 0.05).3.The mPLI and mSBI of the interproximal contact loss group were greater than those of the contact group,and the differences were statistically significant(P < 0.05).There was no significant difference in PD between the two groups(P > 0.05).4.The MBL of natural teeth with periodontitis was significantly higher than that of gingival healthy group(P <0.05).5.Among 122 implants,6 implants had peri-implant mucositis,and no implant had peri-implantitis.The incidence of peri-implant mucositis in the recurrent periodontitis group was higher than that in the gingival healthy group,and the difference was statistically significant(P < 0.05).Conclusions: 1.Different keratinated mucosa widths did not affect mPLI,PD,mSBI,MBL,or prevalence of peri-implant mucositis.2.Compared with zirconia,polymeric porcelain was more likely to increase the probing depth around the implant and accumulate plaque.3.When implants loss interproximal contact,plaque accumulation and probing depth increase were more likely to occur.4.Patients with recurrent periodontitis were prone to marginal bone loss and had a higher probability of peri-implant mucositis.