Assessment of orthodontic treatment efficacy of Clarity Aligners using the Peer Assessment Rating index and the American Board of Orthodontics Cast-Radiograph Evaluation

Thorsten Grünheid, Amy W Tasca, John S. Kanyusik, Shelley Ann Walters, Brent E Larson

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Introduction: 3M Oral Care Solutions (St Paul, Minn) has recently introduced Clarity Aligners into the market. This cohort study evaluated the orthodontic treatment efficacy of this clear aligner system using the Peer Assessment Rating (PAR) index and the American Board of Orthodontics Cast-Radiograph Evaluation (CR-Eval). Methods: Pretreatment and posttreatment dental models of 87 subjects who had undergone orthodontic treatment using Clarity Aligners in both arches to align their teeth to a target setup were independently evaluated by 4 examiners using the PAR index and the American Board of Orthodontics CR-Eval. Changes in CR-Eval and PAR scores from pretreatment to posttreatment were calculated, with PAR score reductions also expressed as percentages. Results: Treatment with Clarity Aligners reduced the CR-Eval scores from 39.05 ± 14.98 to 30.34 ± 8.76, resulting in a statistically significant difference of 8.76 ± 11.45 between pretreatment and posttreatment scores. Similarly, aligner treatment reduced the weighted PAR scores from 13.40 ± 9.26 to 5.80 ± 4.84, resulting in a statistically significant difference of 7.50 ± 7.56 between pretreatment and posttreatment scores. The overall median PAR reduction was 53%, with 94% of the subjects having reduced PAR scores after treatment. Seventy-eight percent of subjects had >30% PAR reduction, 57% had >50% PAR reduction, and 33% had >70% PAR reduction. Conclusions: The results suggest that Clarity Aligners may be an effective treatment modality in mild to moderate malocclusions.

Original languageEnglish (US)
Pages (from-to)861-869
Number of pages9
JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
Volume162
Issue number6
DOIs
StatePublished - Dec 2022

Bibliographical note

Funding Information:
This work was supported by a 3M Health Care research contract with the Minnesota for Biomaterials and Biomechanics (Grant no. CON000000054755).

Publisher Copyright:
© 2022 American Association of Orthodontists

PubMed: MeSH publication types

  • Journal Article

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