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Comparison of maxillary tooth movement between Invisalign® and fixed appliances by artificial intelligence technique

Murphy, Shaun Jennifer
http://orcid.org/0000-0002-6540-4159
http://rave.ohiolink.edu/etdc/view?acc_num=osu1646995842608526

Abstract Details

2022, Master of Science, Ohio State University, Dentistry.
Objectives: The aim of this research project was to compare the amount of maxillary tooth movement between Invisalign and conventional fixed orthodontic appliances using artificial intelligence and identify any limitations of Invisalign. Methods: A total of 60 cases (Invisalign: n=30, Conventional: n=30) were randomly selected from The Ohio State University Graduate Orthodontic Clinic archive. Peer Assessment Rating (PAR) analysis was used to indicate severity of the cases in both groups. Pre-treatment and post-treatment digital models were gathered for both Invisalign and fixed appliance groups and then superimposed using Geomagic Design X software. For overall tooth movement analysis, an in-house program based on the Visualization Toolkit (VTK) was used to calculate the difference between two groups. To further analyze individual tooth movement, specific landmarks were identified on incisors and canines using an artificial intelligence framework, called Two-Stage Mesh Deep Learning. Total average tooth movement in the maxilla, and individual (incisors and canine) tooth movement in six directions (buccal-lingual, mesial-distal, vertical, tipping, torque, rotation) were then analyzed at a significance level of α=0.05. Results: Based on the post-treatment PAR scores, quality of finished cases in both groups were similar. Significantly more total tooth movement was observed with fixed orthodontic appliances compared to Invisalign for all maxillary teeth. Specifically, for maxillary incisors and canines, there was a significant difference in movement between Invisalign and conventional appliance for all 6 movement directions (p < 0.01). The greatest differences observed were with rotation and tipping of the maxillary canine, along with incisor and canine torque. The smallest statistical differences observed, for incisors and canines, were translational tooth movement in the mesiodistal and buccolingual directions. Conclusion: When comparing fixed orthodontic appliances to Invisalign, cases treated with fixed appliances were found to have significantly more maxillary tooth movement in all directions, especially with rotation and tipping of the maxillary canine.
Toru Deguchi (Advisor)
Ching-Chang Ko (Committee Member)
Henry Fields, Jr. (Committee Member)
Ai Ni (Committee Member)
56 p.
Comparative; Dentistry
Invisalign, braces,

Recommended Citations

Citations

  • Murphy, S. J. (2022). Comparison of maxillary tooth movement between Invisalign® and fixed appliances by artificial intelligence technique [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1646995842608526

    APA Style (7th edition)

  • Murphy, Shaun. Comparison of maxillary tooth movement between Invisalign® and fixed appliances by artificial intelligence technique. 2022. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1646995842608526.

    MLA Style (8th edition)

  • Murphy, Shaun. "Comparison of maxillary tooth movement between Invisalign® and fixed appliances by artificial intelligence technique." Master's thesis, Ohio State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=osu1646995842608526

    Chicago Manual of Style (17th edition)

osu1646995842608526
254
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This open access ETD is published by The Ohio State University and OhioLINK.