A reliable method for evaluating upper molar distalization: Superimposition of three-dimensional digital models

Korean Journal of Orthodontics
Ruhi NalcaciHasan Babacan

Abstract

The aim of this study was to evaluate the reliability of measurements obtained after the superimposition of three-dimensional (3D) digital models by comparing them with those obtained from lateral cephalometric radiographs and photocopies of plaster models for the evaluation of upper molar distalization. Data were collected from plaster models and lateral cephalometric radiographs of 20 Class II patients whose maxillary first molars were distalized with an intraoral distalizer. The posterior movements of the maxillary first molars were evaluated using lateral cephalometric radiographs (group CP), photocopies of plaster models (group PH), and digitized 3D models (group TD). Additionally, distalization and expansion of the other teeth and the degrees of molar rotation were measured in group PH and group TD and compared between the two groups. No significant difference was observed regarding the amount of molar distalization among the three groups. A comparison of the aforementioned parameters between group PH and group TD did not reveal any significant difference. 3D digital models are reliable to assess the results of upper molar distalization and can be considered a valid alternative to conventional measurement methods.

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Citations

Jul 2, 2016·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Gökhan Serhat DuranFurkan Dindaroğlu
Apr 20, 2018·Annals of Biomedical Engineering·Falko SchmidtBernd Georg Lapatki
May 23, 2019·Dental press journal of orthodontics·Murilo Augusto Anacleto, Bernardo Quiroga Souki
Jan 31, 2021·International Journal of Environmental Research and Public Health·Maciej JedlińskiJoanna Janiszewska-Olszowska
Sep 21, 2021·Orthodontics & Craniofacial Research·Aron Aliaga-Del CastilloAntonio Carlos Ruellas

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