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Establishment of Rat Model of Orthodontic Tooth Movement

Jiang-tian Hu

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Abstract

Objective To construct a rat model of orthodontic tooth movement.Methods The experiment was carried on 45 male SD rats.The left side of jaws were attached orthodontic appliances and selected as experiment group,the right side attached nothing and selected as control group.The orthodontic procedure included moving the maxillary first molar with the central incisor as anchor.The break rates of the appliances were calculated,the tooth movement and the periodontal histology changes were oberserved.Results The break rate was 2.2%.The maxillary first molar moves closer to the middle,and there was an obvious gaps between the first molar and the second molar.Conclusion The rat model of orthodontic tooth movement was established successfully.

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What this paper is about

Objective To construct a rat model of orthodontic tooth movement.Methods The experiment was carried on 45 male SD rats.The left side of jaws were attached orthodontic appliances and selected as experiment group,the right side attached nothing and selected as control group.The orthodontic procedure included moving the maxillary first molar with the central incisor as anchor.The break rates of the appliances were calculated,the tooth movement and the periodontal histology changes were oberserved.Results The break rate was 2.2%.The maxillary first molar moves closer to the middle,and there was an obvious gaps between the first molar and the second molar.Conclusion The rat model of orthodontic tooth movement was established successfully.

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Available abstract

Objective To construct a rat model of orthodontic tooth movement.Methods The experiment was carried on 45 male SD rats.The left side of jaws were attached orthodontic appliances and selected as experiment group,the right side attached nothing and selected as control group.The orthodontic procedure included moving the maxillary first molar with the central incisor as anchor.The break rates of the appliances were calculated,the tooth movement and the periodontal histology changes were oberserved.Results The break rate was 2.2%.The maxillary first molar moves closer to the middle,and there was an obvious gaps between the first molar and the second molar.Conclusion The rat model of orthodontic tooth movement was established successfully.

Key concepts: Molar, Maxillary first molar, Dentistry, Orthodontics, Mandibular first molar, Maxillary molar, Maxillary central incisor, Mandibular second molar

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