Purpose: To investigate the feasibility of immediate implantation after extraction of anterior teeth in patients with periodontal disease and its clinical effect within 2 years.
Methods: Thirty patients (36 implants) who underwent anterior dental implant treatment for periodontal disease from 2016 to 2018 were randomly divided into immediate implantation group (17 implants) and delayed implantation group (19 implants). The patients were followed up for 2 years, the clinical parameters such as periodontal probing depth, pink esthetic score（PES）and implant neck bone resorption volume of implant neck were obtained. The data was statistically analyzed with SPSS 21.0 software package.
Results: During the 2-year follow-up period, no implant loss, and there was no significant difference in the depth of peri-implant probing between the two groups at each time point(P＞0.05). There was no significant difference in the volume of bone resorption at implant neck between the two groups(P>0.05). At 6, 12 and 24 months after completion of superstructure repair, there was no significant difference in pink esthetic score（PES）between the two groups (P＞0.05), but there was significant difference in pink esthetic score（PES) at the third month after restoration (P＜0.05). The immediate implantation group obtained more satisfactory soft tissue morphology around the implants.
Conclusions: Under appropriate treatment conditions, there is no significant difference in implant success rate between immediate implantation and delayed implantation of anterior teeth in patients with periodontal disease. At the same time, it reduces the number of operations and shortens the course of treatment. In terms of soft tissue aesthetics, immediate implantation is slightly better than delayed implantation in the early stage after restoration, and can maintain a good soft tissue aesthetic effect.
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