PURPOSE:To analyze the effect of orthodontic treatment combined with bone level implant in repairing denti-tion defect.METHODS:The data of 88 patients with single dental implant in mandibular posterior region who were treated for dentition defect from January 2020 to January 2022 were retrospectively analyzed,including 44 patients with bone level implant repair(control group)and 44 patients with orthodontic treatment combined bone level implant repair(experimental group).The success rate of implant implantation,periodontal health status,masticatory function,implant stability,postopera-tive complications and implant satisfaction were compared between the two groups.Statistical analysis was performed with SPSS 18.0 software package.RESULTS:There was no significant difference in the success rate of implant implantation at 3 months and 6 months between the two groups(P＞0.05).The success rate of implant implantation at 12 months in the experi-mental group was significantly higher than that in the control group(P＜0.05).The gingival sulci bleeding index(SBI)and probing depth(PD)of the experimental group were significantly lower than those of the control group at 12 months after im-plantation(P＜0.05),and there was no significant different in bone absorption between the two groups at 12 months after im-plantation(P＞0.05).The EMG activities of masseter muscle and temporal muscle in the two groups were significantly higher than those before treatment(P＜0.05),and those of masseter muscle and temporal muscle in the experimental group were sig-nificantly higher than those in the control group(P＜0.05).The implant stability coefficient values of 6 months and 12 months in 2 groups were significantly higher than those of 3 months(P＜0.05),the implant stability coefficient values of 12 months in 2 groups were significantly higher than those of 6 months and 12 months in 2 groups(P＜0.05),and the implant stability coefficient values of 6 months and 12 months in the experimental group were significantly higher than those in the control group(P＜0.05).There was no significant difference in the total complication rate between the two groups(P＞0.05).The implant satisfaction of the experimental group was significantly higher than that of the control group(P＜0.05).CONCLU-SIONS:Orthodontic treatment combined with bone level implants can improve the success rate of implantation and mastica-tory efficiency,enhance the periodontal health of implants,and increase the patients'satisfaction with implants.
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