The Effectiveness and Efficiency of a CAD/CAM Designed Orthodontic Bracket System

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  • March 19, 2019
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  • Brown, Matthew
    • Affiliation: School of Dentistry, Department of Orthodontics
Abstract
  • Introduction: Lawrence F. Andrews introduced the first Straight Wire Appliance over 40 years ago to increase the consistency and efficiency of orthodontic treatment. More recently, CAD/CAM technology has been utilized to create individualized orthodontic appliances. The purpose of this study is to investigate the clinical effectiveness and efficiency of CAD/CAM customized orthodontic appliances compared to direct and indirect bonded stock orthodontic brackets. Methods: This retrospective study included 3 treatment groups: Group1 patients were direct bonded with self-ligation (Ormco® Damon Q) appliances, Group 2 patients were indirect bonded with self-ligation (Ormco® Damon Q) appliances, and Group 3 patients were indirect bonded with CAD/CAM self-ligation (Ormco® Insignia SL) appliances. Complete pre- and post-treatment records were obtained for all cases. The American Board of Orthodontics (ABO) Discrepancy Index was used to evaluate pre-treatment records, while post-treatment case outcomes were analyzed using the ABO Cast/Radiograph Evaluation. All data collection and analysis was completed by a single evaluator (M.B.). Results: There were no statistically significant differences in the ABO Discrepancy Index or ABO Cast/Radiograph Evaluation among the groups. Treatment times for the 3 groups were significantly different, with the CAD/CAM group being the shortest at 13.8±3.4 months, compared to 21.9±5.0 months and 16.9±4.1 months for the Direct bonded and Indirect bonded groups, respectively. The number of treatment appointments for the CAD/CAM group was significantly less than the Direct bonded group. Conclusion: The CAD/CAM designed orthodontic bracket system evaluated in this study was found to be as effective in treatment outcome measures as standard brackets bonded both directly and indirectly. The CAD/CAM appliance was more efficient in regards to treatment duration, though the decrease in total arch wire appointments was minimal. Further investigation is needed to better quantify the clinical benefits of CAD/CAM orthodontic appliances.
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  • In Copyright
Advisor
  • Koroluk, Lorne
  • Ko, Ching-Chang
  • Nguyen, Tung
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2015
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  • Chapel Hill, NC
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  • There are no restrictions to this item.
Date uploaded
  • June 23, 2015

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