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Achievement of Anterior Teeth Arrangement Using a Single Stage of Clear Aligner

Other Titles
 Achievement of Anterior Teeth Arrangement Using a Single Stage of Clear Aligner 
 Seon-Jeong Ryu  ;  SUNG-HWAN CHOI  ;  jung yul Cha  ;  Chung Ju Hwang 
 Journal of Korean Dental Science, Vol.14(2) : 90-100, 2021-12 
Journal Title
Journal of Korean Dental Science
Issue Date
Clear aligner ; Treatment efficacy
Purpose: The aim of this study was to evaluate the degree of achievement of anterior tooth movement using a ther moplastic clear aligner by superimposing pretreatment, setup, and post-treatment models and to analyze the factors that influence it.
Materials and Methods: Forty patients who underwent clear aligner treatment at the Department of Orthodon tics were included in the study. The pretreatment, setup, and post-treatment models were superimposed, and the achievement rates were evaluated. We analyzed the factors that caused changes in achievement rate on each condi tion.
Result: The average achievement rate of total tooth movement was 57.65%. Mesiodistal and anteroposterior dis placements were achieved better than vertical displacement and rotation. In each displacement, posterior, mesial, and extrusive movements were better achieved than the rotation. Spacing was better corrected than crowding, espe cially in the mesiodistal direction. Most of the tooth movements were achieved better when using 3-step thicknesses of aligners were used.
Conclusion: The treatment results of clear aligners may differ depending on the type of tooth movement, age and other treatment conditions. Clinicians should consider unfavorable conditions based on the results of this study.
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Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Cha, Jung Yul(차정열)
Choi, Sung Hwan(최성환) ORCID logo https://orcid.org/0000-0002-1150-0268
Hwang, Chung Ju(황충주) ORCID logo https://orcid.org/0000-0003-3024-4551
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