Difference between manual and digital measurements of dental arches of orthodontic patients

The objective of this study was to compare the differences between the measurements performed manually to those obtained using a digital model scanner of patients with orthodontic treatment.A cross-sectional study was performed in a sample of 30 study models from patients with permanent dentition wh...

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Bibliographic Details
Published in:Medicine (Baltimore) 2018-06, Vol.97 (22), p.e10887-e10887
Main Authors: Jiménez-Gayosso, Sandra Isabel, Lara-Carrillo, Edith, López-González, Saraí, Medina-Solís, Carlo Eduardo, Scougall-Vilchis, Rogelio José, Hernández-Martínez, César Tadeo, Colomé-Ruiz, Gabriel Eduardo, Escoffié-Ramirez, Mauricio
Format: Article
Language:English
Subjects:
Adolescent
Adult
Body Weights and Measures - methods
Cross-Sectional Studies
Dental Arch - anatomy & histology
Female
Humans
Male
Mandible - anatomy & histology
Maxilla - anatomy & histology
Mexico
Observational Study
Odontometry - methods
Orthodontics - methods
Reproducibility of Results
Signal Processing, Computer-Assisted
Young Adult
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Summary:The objective of this study was to compare the differences between the measurements performed manually to those obtained using a digital model scanner of patients with orthodontic treatment.A cross-sectional study was performed in a sample of 30 study models from patients with permanent dentition who attended a university clinic between January 2010 and December 2015. For the digital measurement, a Maestro 3D Ortho Studio scanner (Italy) was used and Mitutoyo electronic Vernier calipers (Kawasaki, Japan) were used for manual measurement. The outcome variables were the measurements for maxillary intercanine width, mandibular intercanine width, maxillary intermolar width, mandibular intermolar width, overjet, overbite, maxillary arch perimeter, mandibular arch perimeter, and palate height. The independent variables, besides age and sex, were a series of arc characteristics. The Student t test, paired Student t test, and Pearson correlation in SPSS version 19 were used for the analysis.Of the models, 60% were from women. Two of nine measurements for pre-treatment and 6 of 9 measurements for post-treatment showed a difference. The variables that were different between the manual and digital measurements in the pre-treatment were maxillary intermolar width and palate height (P 
ISSN:0025-7974
1536-5964
DOI:10.1097/MD.0000000000010887