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Final Thesis Mary Griffith 2.pdf (959.11 KB)

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Comparison of two Invisalign tray generations using the Peer Assessment Rating (PAR) Index

Griffith, Mary M
http://rave.ohiolink.edu/etdc/view?acc_num=osu1583413744283131

Abstract Details

2020, Master of Science, Ohio State University, Dentistry.
Objectives: This study aimed to establish if there is a significant difference in effectiveness between two generations of Invisalign trays in terms of PAR score reduction for finished cases from a graduate orthodontic clinic. Methods: 45 Pre- and post-treatment cases treated with the previous Invisalign material and 49 pre- and post-treatment cases treated with SmartTrack material were scored using the Peer Assessment Rating (PAR) Index. Both groups were controlled for initial weighted PAR score, age, gender, and treatment time. The two generations were compared in regard to absolute reduction, percent reduction, and “great improvement” in PAR score. Results: The mean absolute reduction in weighted PAR score between the groups was not statistically significant (p=0.526). The mean percent reduction in weighted PAR score between the groups was not statistically significant (p=0.210). The proportion of “great improvement” between the groups was not significant (p=0.526). Only six of the eight components of occlusion had enough variation to be modeled. Absolute reduction in unweighted PAR score was not significantly different between the groups for upper anterior alignment, overjet, or lower anterior alignment (p=0.996, 1.000, 0.114, respectively). Percent reduction in unweighted PAR score was not significantly different between the two groups for anteroposterior, overbite, or transverse (p=1.000, 1.000, 1.000, respectively) relationships. Conclusions: Our study indicates that both generations of Invisalign aligners were able to improve the malocclusion to a similar degree according to the PAR Index. Patients and providers should feel confident that the ability to correct malocclusion is possible regardless of the material used.
Toru Deguchi (Advisor)
Henry Fields (Committee Member)
Lee Damian (Committee Member)
Ni Andy (Committee Member)
60 p.
Dentistry
Invisalign; Peer Assessment Rating Index; Orthodontics

Recommended Citations

Citations

  • Griffith, M. M. (2020). Comparison of two Invisalign tray generations using the Peer Assessment Rating (PAR) Index [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1583413744283131

    APA Style (7th edition)

  • Griffith, Mary. Comparison of two Invisalign tray generations using the Peer Assessment Rating (PAR) Index . 2020. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1583413744283131.

    MLA Style (8th edition)

  • Griffith, Mary. "Comparison of two Invisalign tray generations using the Peer Assessment Rating (PAR) Index ." Master's thesis, Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1583413744283131

    Chicago Manual of Style (17th edition)

osu1583413744283131
297
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This open access ETD is published by The Ohio State University and OhioLINK.