The Comparison of Diagnostic Measurements Using Two Different Three-Dimensional Digital Orthodontic Model Software Systems
DOI:
https://doi.org/10.12974/2311-8695.2017.05.01.3Keywords:
Diagnostic analysis, digital orthodontic models, 3D digital model softwares.Abstract
Objective: The purpose of this study was to evaluate and compare the reliability and accuracy of diagnostic measurements performed using two different three-dimensional (3D) digital orthodontic model software systems.
Materials and Methods: The dental casts of 20 patients with permanent dentition were selected and scanned with an orthodontic 3D scanner (3Shape R700, Copenhagen, Denmark). Two different digital model software programs, Orthomodel (v.1.01, Orthomodel Inc., Istanbul, Turkey) and O3DM (v.2.0, O3DM Thunoegade, Aarhus C, Denmark) were used for diagnostic measurements including tooth width, Bolton discrepancies, intermolar and intercanine distances. A total of 34 measurements were calculated on each digital model. All measurements were repeated by the same observer over 10 randomly selected dental casts at least two weeks later for intraobserver reliability. Results were analyzed statistically. The paired samples t-test was used to compare the differences between the measurements obtained with both softwares. The intraobserver reliability was determined using Cronbach’s alpha test.
Results: Cronbach’s alpha value indicated a very high level of reliability for all measurements. Orthomodel and O3DM software programs showed significant differences in the mesiodistal widths of some teeth and the sum of maxillary 6 teeth widths (p<0.05), but not in the Bolton ratios and transverse arch width measurements.
Conclusions: Both digital model softwares demonstrated clinically acceptable measurements despite of the differences in some measurements essential for diagnosis and treatment planning.
References
Ogodescu A, Sinescu C, Ogodescu E, Negrutiu M and Bratu E. The digital decade in interdisciplinary orthodontics. In: Proceedings of the 2010 International Conference on Applied Computing Conference. World Scientific and Engineering Academy and Society (WSEAS), pp. 115-8.
Lippold C, Kirschneck C, Schreiber K, Abukiness S, Tahvildari A, Moissenko T et al. Methodological accuracy of digital and manual model analysis in orthodontics - A retrospective clinical study. Comput Biol Med 2015; 62: 103-9. https://doi.org/10.1016/j.compbiomed.2015.04.012
Wiranto MG, Engelbrecht WP, Tutein Nolthenius HE, van der Meer WJ and Ren Y. Validity, reliability, and reproducibility of linear measurements on digital models obtained from intraoral and cone-beam computed tomography scans of alginate impressions. Am J Orthod Dentofacial Orthop 2013; 143(1): 140-7. https://doi.org/10.1016/j.ajodo.2012.06.018
Peluso MJ, Josell SD, Levine SW and Lorei BJ. Digital Models: An Introduction. Semin Orthod 2004; 10(3): 226-38. https://doi.org/10.1053/j.sodo.2004.05.007
Fleming PS, Marinho V and Johal A. Orthodontic measurements on digital study models compared with plaster models: a systematic review. Orthod Craniofac Res 2011; 14(1): 1-16. https://doi.org/10.1111/j.1601-6343.2010.01503.x
Westerlund A, Tancredi W, Ransjö M, et al. Digital casts in orthodontics: a comparison of 4 software systems. Am J Orthod Dentofacial Orthop 2015; 147(4): 509-16. https://doi.org/10.1016/j.ajodo.2014.11.020
Sjögren AP, Lindgren JE and Huggare JA. Orthodontic study cast analysis--reproducibility of recordings and agreement between conventional and 3D virtual measurements. J Digit Imaging 2010; 23(4): 482-92. https://doi.org/10.1007/s10278-009-9211-y
Zilberman O, Huggare JA and Parikakis KA. Evaluation of the validity of tooth size and arch width measurements using conventional and three-dimensional virtual orthodontic models. Angle Orthod 2003; 73(3): 301-6.
Santoro M, Galkin S, Teredesai M, Nicolay of and Cangialosi TJ. Comparison of measurements made on digital and plaster models. Am J Orthod Dentofacial Orthop 2003; 124(1): 101-5. https://doi.org/10.1016/S0889-5406(03)00152-5
Quimby ML, Vig KW, Rashid RG and Firestone AR. The accuracy and reliability of measurements made on computerbased digital models. Angle Orthod 2004; 74(3): 298-303.
Stevens DR, Flores-Mir C, Nebbe B, Raboud DW, Heo G and Major PW. Validity, reliability, and reproducibility of plaster vs digital study models: comparison of peer assessment rating and Bolton analysis and their constituent measurements. Am J Orthod Dentofacial Orthop 2006; 129(6): 794-803. https://doi.org/10.1016/j.ajodo.2004.08.023
Leifert MF, Leifert MM, Efstratiadis SS and Cangialosi TJ. Comparison of space analysis evaluations with digital models and plaster dental casts. Am J Orthod Dentofacial Orthop 2009; 136(1): 16.e1-4; https://doi.org/10.1016/j.ajodo.2008.11.019
Sousa MV, Vasconcelos EC, Janson G, Garib D and Pinzan A. Accuracy and reproducibility of 3-dimensional digital model measurements. Am J Orthod Dentofacial Orthop 2012; 142(2): 269-73. https://doi.org/10.1016/j.ajodo.2011.12.028
Nalcaci R, Topcuoglu T and Ozturk F. Comparison of Bolton analysis and tooth size measurements obtained using conventional and three-dimensional orthodontic models. Eur J Dent 2013; 7(Suppl 1): 66-70. https://doi.org/10.4103/1305-7456.119077
Reuschl RP, Heuer W, Stiesch M, Wenzel D and Dittmer MP. Reliability and validity of measurements on digital study models and plaster models. Eur J Orthod 2016; 38(1): 22-6. https://doi.org/10.1093/ejo/cjv001
Czarnota J, Hey J and Fuhrmann R. Measurements using orthodontic analysis software on digital models obtained by 3D scans of plaster casts: Intra-rater reliability and validity. J Orofac Orthop 2016; 77(1): 22-30. https://doi.org/10.1007/s00056-015-0004-2
Naidu D and Freer TJ. Validity, reliability, and reproducibility of the iOC intraoral scanner: a comparison of tooth widths and Bolton ratios. Am J Orthod Dentofacial Orthop 2013; 144(2): 304-10. https://doi.org/10.1016/j.ajodo.2013.04.011
Hayashi K, Chung O, Park S, Lee SP, Sachdeva RC and Mizoguchi I. Influence of standardization on the precision (reproducibility) of dental cast analysis with virtual 3- dimensional models. Am J Orthod Dentofacial Orthop 2015; 147(3): 373-80. https://doi.org/10.1016/j.ajodo.2014.11.015
Taneva E, Kusnoto B and Evans CA. In: 3D Scanning, Imaging, and Printing in Orthodontics, Issues in Contemporary Orthodontics. Prof Farid Bourzgui (Ed.), In Tech 2015, DOI: 10.5772/60010. Available from: http://www.intechopen.com/books/issues-in-contemporaryorthodontics/ 3d-scanning-imaging-and-printing-inorthodontics https://doi.org/10.5772/60010
