Validation of the American Board of Orthodontics Objective Grading System for assessing the treatment outcomes of Chinese patients

2013 ◽  
Vol 144 (3) ◽  
pp. 391-397 ◽  
Author(s):  
Guang-Ying Song ◽  
Sheldon Baumrind ◽  
Zhi-He Zhao ◽  
Yin Ding ◽  
Yu-Xing Bai ◽  
...  
Keyword(s):  
Treatment Outcomes ◽  
Chinese Patients ◽  
Grading System ◽  
American Board Of Orthodontics ◽  
Objective Grading System

Assessing the American Board of Orthodontics objective grading system: Digital vs plaster dental casts

2007 ◽  
Vol 131 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Troy R. Okunami ◽  
Budi Kusnoto ◽  
Ellen BeGole ◽  
Carla A. Evans ◽  
Cyril Sadowsky ◽  
...  
Keyword(s):  
Grading System ◽  
American Board Of Orthodontics ◽  
Objective Grading System ◽  
Dental Casts

scholarly journals Tooth Positioner Effects on Occlusal Contacts and Treatment Outcomes

2008 ◽  
Vol 78 (6) ◽  
pp. 1050-1056 ◽  
Author(s):  
Yongjong Park ◽  
James Kennedy Hartsfield ◽  
Thomas R. Katona ◽  
W. Eugene Roberts
Keyword(s):  
Control Group ◽  
Grading System ◽  
Consecutive Series ◽  
Fixed Appliance ◽  
First Order ◽  
American Board Of Orthodontics ◽  
Significant Difference ◽  
Objective Grading System ◽  
Principal Effect ◽  
Better Than

Abstract Objective: To determine if an increase in tooth contacts is the principal effect of tooth positioner wear. Materials and Methods: Patient charts from a consecutive series were reviewed until a sample of 100 cases that used a tooth positioner was obtained. One hundred control cases were randomly selected from patients treated at the same period. Malocclusion severity and finished occlusion were assessed with the American Board of Orthodontics (ABO) Discrepancy Index (DI) and Objective Grading System (OGS) score, respectively. Finish casts for each patient were mounted on a Galleti articulator. Occlusal registrations were obtained with silicone-based impression material from casts fabricated from impressions taken at the time of fixed appliance removal (control) or at the end of the tooth positioner treatment (experimental). The number of the perforations and transparent areas on the occlusal registrations were quantified. Results: There was no significant difference (P = .20) in the number of total occlusal contacts between the two groups. However, the OGS score of the tooth positioner group (16.7) was significantly (P = .0009) better than for the control group (19.9). Conclusions: Tooth positioners were effective in improving the occlusal finish, but the effects were independent of an increase in occlusal contacts. Positioners primarily improved first order alignment by tipping teeth into an improved intercuspation.

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