Objective To investigate the effect and safety of bracketless invisible appliance on periodontitis with maloc-clusion deformity,and to analyze the influence on periodontal health and inflammation of patients,in order to provide ref-erence for clinical treatment of this disease.Methods A total of 200 patients with periodontitis with malocclusion de-formity admitted to Beijing Stomatological Hospital Capital Medical University from January 2021 to December 2022 were selected and divided into the control group(94 cases,straight wire appliance)and the study group(106 cases,bracket-less invisible appliance)according to the orthodontic methods.The treatment effect was compared between the two groups.Results The total effective rate in the study group was 95.28％(101/106),which had no difference compared with 92.55％(87/94)in the control group(P＞O.05).There was no difference in tooth leveling time and occlusal open-ing time between the two groups(P＞0.05).In the study group,clinical attachment loss(CAL),gingival line probe depth(PD),gingival sulcus bleeding index(SBI),plaque index(PLI),gingival index(GI)[(3.26±1.05)mm,(2.44±0.61)mm,1.21±0.31,1.56±0.41,0.65±0.17]after treatment were lower than those in the control group[(3.81±1.19)mm,(2.83±0.49)mm,1.75±0.49,2.51±0.50,1.12±0.25],all P＜0.05.After treatment,the levels of interleukin-8(IL-8),interleukin-1β(IL-1β),and tumor necrosis factor-α(TNF-α)in the study group were lower than those in the control group(P＜0.05).The total complication rate in the study group was 5.66％(6/106),which was lower than that in the control group[15.96％(15/94),x2=5.621,P=0.018].Conclusion The bracket-less invisible appliance has a definite effect on the treatment of periodontitis with malocclusion deformity,which can sig-nificantly improve the periodontal health of patients.
Periodontitis with malocclusion deformityBracketless invisible appliancePlaque indexInterleukinTumor necrosis factor-α
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