The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Clinical application of an intraoral scanner for serial evaluation of orthodontic tooth movement: A preliminary study

  • Yun, Dalsun (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Choi, Dong-Soon (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Jang, Insan (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University) ;
  • Cha, Bong-Kuen (Department of Orthodontics, College of Dentistry, Gangneung-Wonju National University)
  • Received : 2017.10.12
  • Accepted : 2018.02.07
  • Published : 2018.07.25
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Abstract

The aim of this study was to test the clinical application of an intraoral scanner for serial evaluation of orthodontic tooth movement. The maxillary dentitions of eight patients with fixed orthodontic appliances were scanned using an intraoral scanner at the beginning of treatment (T0), and at 1 month (T1), 2 months (T2), 3 months (T3), and 4 months (T4) after T0. The serial digital models were superimposed on the palatal surface as a reference area, and the linear and angular changes of the central incisors, canines, and first molars were evaluated. The intraclass correlation coefficient and method errors showed that this method was clinically acceptable. Various types of orthodontic tooth movements, including minute movements, could be observed every month. The intraoral scanner and digital superimposition technique enabled the serial evaluation of orthodontic tooth movement without taking serial impressions and/or acquiring radiographs.

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References

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