Class IIImalocclusion after orthodontic treatment with three keep on periodontal influence research
Fangyong Zhu
Abstract
Fangyong Zhu
Abstract
Objective To evaluate the periodontal implication with three types retainers.Methods Thirty cases were divided into three groups,and three types of retainers were used.A follow-up periodontal examination was carried out in three,six months later.The periodontal condition was scored according to three parameters:GI,SBI,PLI.Result Hawley retainer showed no statistic difference.The multistrand stainless showed statistic difference significantly.The parameter PLI of fiber-reinforced composite was significant.Conclusion The Hawley retainer has little effect on periodontal,the multistrand stainless wire retainer has most.Fiber-reinforced composite was easy for retain.
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Objective To evaluate the periodontal implication with three types retainers.Methods Thirty cases were divided into three groups,and three types of retainers were used.A follow-up periodontal examination was carried out in three,six months later.The periodontal condition was scored according to three parameters:GI,SBI,PLI.Result Hawley retainer showed no statistic difference.The multistrand stainless showed statistic difference significantly.The parameter PLI of fiber-reinforced composite was significant.Conclusion The Hawley retainer has little effect on periodontal,the multistrand stainless wire retainer has most.Fiber-reinforced composite was easy for retain.
Key concepts: Retainer, Dentistry, Significant difference, Orthodontics, Statistic, Medicine, Mathematics, Materials science