The Effectiveness of the Invisalign Appliance in Extraction Cases Using the the ABO Model Grading System: a Multicenter Randomized Controlled Trial

Overview

Journal Int J Clin Exp Med

Specialty General Medicine

Date 2015 Jul 30

PMID 26221410

Citations 19

Authors

Weihong Li

Shimei Wang

Yanzhen Zhang

Affiliations

Soon will be listed here.

Abstract

Objective: The aim of this study was to assess treatment outcomes of the Invisalign and compare results with braces.

Methods: One hundred and fifty-two adult orthodontic patients, referred to two Orthodontic Specialist Clinics, were randomized to receive either invisalign or brace treatment. All patients were evaluated by using methods from the American Board of Orthodontics Phase III examination. The discrepancy index was used to analyze pretreatment records to control for initial severity of malocclusion. The objective grading system was used to systematically grade posttreatment records. The Wilcoxon 2-sample tests were used to evaluate treatment outcome of Invisalign and braces.

Results: The total mean scores of the objective grading system categories were improved after treatment in both groups. The improvements were not statistically significant in scores for alignment, marginal ridges, occlusal relations, over jet, inter-proximal contacts, and root angulation. Invisalign scores were consistently lower than braces scores for buccolingual inclination and occlusal contacts.

Conclusions: The overall improvement in OGS scores indicate that both Invisalign and fixed appliances were successful in treating Class I adult extraction cases in this sample.

Citing Articles

Three-dimensional comparative analysis of upper central incisors external apical root resorption/ incisive canal changes in first premolar extraction cases: clear aligners Versus passive self-ligating fixed braces.

Al-Gumaei W, Long H, Zhang X, Zhang H, Tang Y, Jiang Q Clin Oral Investig. 2025; 29(3):147.

PMID: 39982527 DOI: 10.1007/s00784-025-06217-4.

Accuracy and Stability of Clear Aligner Treatment: A Systematic Review.

Vigneshkumar V, Deepak E, Ferreira V, Waremani A, Nishaevitha N, Ammal K J Pharm Bioallied Sci. 2025; 16(Suppl 4):S3077-S3079.

PMID: 39926927 PMC: 11805322. DOI: 10.4103/jpbs.jpbs_1048_24.

Accuracy of Preliminary Maxillary Canine and Anchorage Tooth Movement in Premolar Extraction Cases Using 12 In-House Clear Aligners: A Randomised Control Trial Comparing Power Arm and Control.

Vongtiang N, Tongkitcharoen N, Eurutairat S, Manopatanakul S, Santiwong P, Viwattanatipa N Orthod Craniofac Res. 2024; 28(2):400-411.

PMID: 39731468 PMC: 11897422. DOI: 10.1111/ocr.12889.

Clear Aligners in Pediatric Dentistry: A Scoping Review.

Chandra A, Thosar N, Parakh H Cureus. 2024; 16(4):e58992.

PMID: 38800189 PMC: 11127637. DOI: 10.7759/cureus.58992.

analysis of the influence of the thermocycling and the applied force on orthodontic clear aligners.

Cintora-Lopez P, Arrieta-Blanco P, Martin-Vacas A, Paz-Cortes M, Gil J, Aragoneses J Front Bioeng Biotechnol. 2024; 11:1321495.

PMID: 38173871 PMC: 10761475. DOI: 10.3389/fbioe.2023.1321495.

References

Honn M, Goz G . A premolar extraction case using the Invisalign system. J Orofac Orthop. 2006; 67(5):385-94. DOI: 10.1007/s00056-006-0609-6. View

Kuo E, Miller R . Automated custom-manufacturing technology in orthodontics. Am J Orthod Dentofacial Orthop. 2003; 123(5):578-81. DOI: 10.1067/mod.2003.S0889540603000519. View

Wong B . Invisalign A to Z. Am J Orthod Dentofacial Orthop. 2002; 121(5):540-1. DOI: 10.1067/mod.2002.123036. View

Chisari J, McGorray S, Nair M, Wheeler T . Variables affecting orthodontic tooth movement with clear aligners. Am J Orthod Dentofacial Orthop. 2014; 145(4 Suppl):S82-91. DOI: 10.1016/j.ajodo.2013.10.022. View

Djeu G, Shelton C, Maganzini A . Outcome assessment of Invisalign and traditional orthodontic treatment compared with the American Board of Orthodontics objective grading system. Am J Orthod Dentofacial Orthop. 2005; 128(3):292-8. DOI: 10.1016/j.ajodo.2005.06.002. View

Boyd R . Surgical-orthodontic treatment of two skeletal Class III patients with Invisalign and fixed appliances. J Clin Orthod. 2005; 39(4):245-58. View

Womack W . Four-premolar extraction treatment with Invisalign. J Clin Orthod. 2006; 40(8):493-500. View

Prescott T, Miller R . Interview with Align Technology executives. Interview by David L Turpin. Am J Orthod Dentofacial Orthop. 2002; 122(2):19A-20A. View

Giancotti A, Greco M, Mampieri G . Extraction treatment using Invisalign Technique. Prog Orthod. 2006; 7(1):32-43. View

10.

Kravitz N, Kusnoto B, BeGole E, Obrez A, Agran B . How well does Invisalign work? A prospective clinical study evaluating the efficacy of tooth movement with Invisalign. Am J Orthod Dentofacial Orthop. 2009; 135(1):27-35. DOI: 10.1016/j.ajodo.2007.05.018. View

11.

Womack W, Day R . Surgical-orthodontic treatment using the Invisalign system. J Clin Orthod. 2008; 42(4):237-45. View

12.

Owen 3rd A . Accelerated Invisalign treatment. J Clin Orthod. 2001; 35(6):381-5. View

13.

Lagravere M, Flores-Mir C . The treatment effects of Invisalign orthodontic aligners: a systematic review. J Am Dent Assoc. 2005; 136(12):1724-9. DOI: 10.14219/jada.archive.2005.0117. View

14.

Vlaskalic V, Boyd R . Clinical evolution of the Invisalign appliance. J Calif Dent Assoc. 2002; 30(10):769-76. View