INDIGO Home University of Illinois at Urbana-Champaign logo uic building uic pavilion uic student center

Accuracy of Digital American Board of Orthodontics Discrepancy Index

Show simple item record

Bookmark or cite this item: http://hdl.handle.net/10027/18822

Files in this item

File Description Format
PDF Dragstrem_Kristina.pdf (681KB) (no description provided) PDF
Title: Accuracy of Digital American Board of Orthodontics Discrepancy Index
Author(s): Dragstrem, Kristina G.
Advisor(s): Kusnoto, Budi
Contributor(s): Galang, Maria Therese; Viana, Maria Grace
Department / Program: Orthodontics
Graduate Major: Oral Sciences
Degree Granting Institution: University of Illinois at Chicago
Degree: MS, Master of Science
Genre: Masters
Subject(s): Orthodontic Discrepancy Index Digital Models
Abstract: The objective of the this study was to compare accuracy and reliability of the American Board of Orthodontics Discrepancy Index obtained manually on plaster casts (the gold standard) with scores obtained using their digital models in OrthoCad software and Motion View’s Ortho Insight 3D software. Plaster models were obtained from 45 previous patients with varying degrees of malocclusion. Measurements were completed manually with a periodontal probe as necessary. The same casts were scanned and analyzed using Ortho Insight 3D (Motion View Software, Hixson, TN). Alginate impressions were made of the original plaster casts and sent to OrthoCad (Cadent, Carlstadt, NJ) for digital model fabrication and analysis. Total DI score and its target disorders were computed manually on plaster casts and digitally using the respective software. Intra-rater and inter-rater reliability was assessed for 15 subjects using Spearman’s Rho correlation test. Accuracy DI scores and its target disorders were assessed for all 45 subjects using Wilcoxon signed ranks test to determine differences in digital calculation compared to manual calculation. Intra-rater and inter-rater reliability was high for total DI score and most target disorders (r>0.8). No significant difference was found between total DI score when measured with OrthoCad compared to manual calculation. Total DI score calculated by Ortho Insight 3D was found to be significantly larger than manual calculation by 2.71 points.
Issue Date: 2014-06-20
Genre: thesis
URI: http://hdl.handle.net/10027/18822
Date Available in INDIGO: 2014-06-20
Date Deposited: 2014-05
 

This item appears in the following Collection(s)

Show simple item record

Statistics

Country Code Views
United States of America 564
China 297
Ukraine 36
Romania 17
Russian Federation 17

Browse

My Account

Information

Access Key