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THE CLINICAL STUDY OF CORRECTIVE OF ANGLE CLASS II DIVISION 1 MALOCCLUSION IN THE MIXED DENTITION

Chun Wang

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Abstract

Objective:To evaluate the early treatment of Angle Class Ⅱ, Division 1 malocclusion in the mixed dentition. Methods:23 patients with Angle Class Ⅱ, Division 1 malocclusion in the mixed dentition were selected and treated with edgewise appliance without extraction of any tooth. Results: Against 16 variables of the lateral cephalograms the arithmatic mean and the standard deviation were calculated. Student t tests were used to assess the differences between before and after treatment. The differences of three variables(ANB,1 1,1 MP) were statistically significant(p0.01). Conclusion: Angle Class Ⅱ, Division 1 malocclusion should be treated during the mixed dentition so as to prevent the development of malocclusion and avoid extraction of permanent teeth in the permanent dentition.

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What this paper is about

Objective:To evaluate the early treatment of Angle Class Ⅱ, Division 1 malocclusion in the mixed dentition. Methods:23 patients with Angle Class Ⅱ, Division 1 malocclusion in the mixed dentition were selected and treated with edgewise appliance without extraction of any tooth. Results: Against 16 variables of the lateral cephalograms the arithmatic mean and the standard deviation were calculated. Student t tests were used to assess the differences between before and after treatment. The differences of three variables(ANB,1 1,1 MP) were statistically significant(p0.01). Conclusion: Angle Class Ⅱ, Division 1 malocclusion should be treated during the mixed dentition so as to prevent the development of malocclusion and avoid extraction of permanent teeth in the permanent dentition.

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Available abstract

Objective:To evaluate the early treatment of Angle Class Ⅱ, Division 1 malocclusion in the mixed dentition. Methods:23 patients with Angle Class Ⅱ, Division 1 malocclusion in the mixed dentition were selected and treated with edgewise appliance without extraction of any tooth. Results: Against 16 variables of the lateral cephalograms the arithmatic mean and the standard deviation were calculated. Student t tests were used to assess the differences between before and after treatment. The differences of three variables(ANB,1 1,1 MP) were statistically significant(p0.01). Conclusion: Angle Class Ⅱ, Division 1 malocclusion should be treated during the mixed dentition so as to prevent the development of malocclusion and avoid extraction of permanent teeth in the permanent dentition.

Key concepts: Malocclusion, Orthodontics, Dentition, Permanent dentition, Dentistry, Medicine

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