Reliability of linear and angular dental measurements with the OrthoMechanics Sequential Analyzer

Sameh Talaat; Ahmed Kaboudan; Hero Breuning; Nivine Ragy; Tarek Elshebiny; Katherine Kula; Ahmed Ghoneima

doi:10.1016/j.ajodo.2014.07.027

Reliability of linear and angular dental measurements with the OrthoMechanics Sequential Analyzer

Am J Orthod Dentofacial Orthop. 2015 Feb;147(2):264-9. doi: 10.1016/j.ajodo.2014.07.027.

Authors

Sameh Talaat¹, Ahmed Kaboudan², Hero Breuning³, Nivine Ragy⁴, Tarek Elshebiny⁵, Katherine Kula⁶, Ahmed Ghoneima⁷

Affiliations

¹ Assistant lecturer, Department of Orthodontics, College of Dentistry, Future University of Egypt, Cairo, Egypt.
² Assistant professor, Department of Computer Science, El Shorouk Academy, New Cairo, Egypt.
³ Assistant professor, Department of Orthodontics and Craniofacial Biology, Radboud University, Nijmegen, The Netherlands.
⁴ Professor, Department of Oral Medicine, Periodontology and Oral Radiology, College of Dentistry, Future University of Egypt, Cairo, Egypt.
⁵ Orthodontic resident, Case Western Reserve University, Cleveland, Ohio; teaching assistant, Department of Orthodontics, College of Dentistry, Future University of Egypt, Cairo, Egypt.
⁶ Chair and Jarabak Endowed Professor, Department of Orthodontics and Oral Facial Genetics, Indiana University School of Dentistry, Indianapolis, Ind.
⁷ Assistant professor, Department of Orthodontics and Oral Facial Genetics, Indiana University School of Dentistry, Indianapolis, Ind; lecturer, Department of Orthodontics, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt. Electronic address: aghoneim@iu.edu.

PMID: 25636561
DOI: 10.1016/j.ajodo.2014.07.027

Abstract

Introduction: The aim of this study was to evaluate the reliability of newly developed software in the assessment of orthodontic tooth movement 3 dimensionally.

Methods: The sample consisted of pretreatment and posttreatment computed tomography scans and plaster dental models of 20 orthodontic patients treated with a hyrax palatal expander as a part of their comprehensive orthodontic treatment. Dental-arch measurements, including arch widths, tooth inclinations, and angulation parameters, were measured on the scans using InvivoDental 3D imaging software (version 5.1; Motionview, Hixson, Tenn). The plaster dental models were laser scanned and superimposed, and measurements were obtained digitally using the new software. Agreement between the digital models and the computed tomography measurements was evaluated with intraclass correlation coefficients, paired t tests, and Bland-Altman plots. A P value of ≤0.05 was considered statistically significant.

Results: High agreement, a nonsignificant paired t test, and no indication of agreement discrepancies were observed for most of the measured parameters.

Conclusions: The results confirmed that the new software program offers a reliable tool for dental-arch measurements obtained from 3-dimensional laser-scanned models.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adolescent
Cephalometry / statistics & numerical data*
Child
Cuspid / pathology
Dental Arch / pathology
Follow-Up Studies
Humans
Image Processing, Computer-Assisted / statistics & numerical data
Imaging, Three-Dimensional / statistics & numerical data
Incisor / pathology
Lasers
Models, Dental / statistics & numerical data
Molar / pathology
Palatal Expansion Technique
Reproducibility of Results
Retrospective Studies
Rotation
Software Validation*
Software*
Tomography, Spiral Computed / statistics & numerical data
Tooth Movement Techniques / statistics & numerical data*
Torque
User-Computer Interface