Efficacy of clear aligners in controlling orthodontic tooth movement: a systematic review

Gabriele Rossini, Simone Parrini, Tommaso Castroflorio, Andrea Deregibus, Cesare L Debernardi, Gabriele Rossini, Simone Parrini, Tommaso Castroflorio, Andrea Deregibus, Cesare L Debernardi

Abstract

Objective: To assess the scientific evidence related to the efficacy of clear aligner treatment (CAT) in controlling orthodontic tooth movement.

Materials and methods: PubMed, PMC, NLM, Embase, Cochrane Central Register of Controlled Clinical Trials, Web of Knowledge, Scopus, Google Scholar, and LILACs were searched from January 2000 to June 2014 to identify all peer-reviewed articles potentially relevant to the review. Methodological shortcomings were highlighted and the quality of the studies was ranked using the Cochrane Tool for Risk of Bias Assessment.

Results: Eleven relevant articles were selected (two Randomized Clinical Trials (RCT), five prospective non-randomized, four retrospective non-randomized), and the risk of bias was moderate for six studies and unclear for the others. The amount of mean intrusion reported was 0.72 mm. Extrusion was the most difficult movement to control (30% of accuracy), followed by rotation. Upper molar distalization revealed the highest predictability (88%) when a bodily movement of at least 1.5 mm was prescribed. A decrease of the Little's Index (mandibular arch: 5 mm; maxillary arch: 4 mm) was observed in aligning arches.

Conclusions: CAT aligns and levels the arches; it is effective in controlling anterior intrusion but not anterior extrusion; it is effective in controlling posterior buccolingual inclination but not anterior buccolingual inclination; it is effective in controlling upper molar bodily movements of about 1.5 mm; and it is not effective in controlling rotation of rounded teeth in particular. However, the results of this review should be interpreted with caution because of the number, quality, and heterogeneity of the studies.

Keywords: Clear aligner therapy; Invisalign®; Invisible orthodontics; Orthodontics.

Figures

Figure 1.
Figure 1.
Flow chart according to the PRISMA Statement.

References

    1. Melsen B. Northcroft Lecture: how has the spectrum of orthodontics changed over the past decades. J Orthod. 2011;38:134–143.
    1. Rosvall MD, Fields HW, Ziuchkovski J, Rosenstiel SF, Johnston WM. Attractiveness, acceptability, and value of orthodontic appliances. Am J Orthod Dentofacial Orthop. 2009;135:276.e1–276.e12; discussion 276–277.
    1. Kesling HD. Coordinating the predetermined pattern and tooth positioner with conventional treatment. Am J Orthod Oral Surg. 1946;32:285–293.
    1. Kravitz ND, Kusnoto B, Agran B, Viana G. How well does Invisalign work? A prospective clinical study evaluating the efficacy of tooth movement with Invisalign. Am J Orthod Dentofacial Orthop. 2009;35:27–35.
    1. Krieger E, Seiferth J, Marinello I, et al. Invisalign® treatment in the anterior region: were the predicted tooth movements achieved. J Orofac Orthop. 2012;73:365–376.
    1. Lagravère MO, Flores-Mir C. The treatment effects of Invisalign orthodontic aligners: a systematic review. J Am Dent Assoc. 2005;136:1724–1729.
    1. Centre for Reviews and Dissemination, University of York. Systematic Reviews—CRD's Guidance for Undertaking Reviews in Health Care. 2008
    1. Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009;(6):e1000097. doi:10.1371/journal.pmed.1000097.
    1. Bondemark L, Holm A, Hansen K, et al. Long-term stability of orthodontic treatment and patient satisfaction. A systematic review. Angle Orthod. 2007;77:181–191.
    1. 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;128:292–298.
    1. Kassas W, Al-Jewair T, Preston CB, Tabbaa S. Assessment of Invisalign treatment outcomes using the ABO Model Grading System. J World FedOrthod. 2013;2:e61–e64.
    1. Simon M, Keilig L, Schwarze J, Jung BA, Bourauel C. Treatment outcome and efficacy of an aligner technique—regarding incisor torque, premolar derotation and molar distalization. BMC Oral Health. 2014;14:68.
    1. Kravitz ND, Kusnoto B, Agran B, Viana G. Influence of attachments and interproximal reduction on the accuracy of canine rotation with Invisalign A prospective clinical study. Angle Orthod. 2008;78:682–687.
    1. Kuncio D, Maganzini A, Shelton C, Freeman K. Invisalign and traditional orthodontic treatment postretention outcomes compared using the American Board of Orthodontics Objective Grading System. Angle Orthod. 2007;77:864–869.
    1. Pavoni C, Lione R, Laganà G, Cozza P. Self-ligating versus Invisalign: analysis of dentoalveolar effects. Ann Stomatol (Roma) 2011;2:23–27.
    1. Drake CT, McGorray SP, Dolce C, Nair M, Wheeler TT. Orthodontic Tooth Movement with Clear Aligners. International Scholarly Research Network - ISRN Dentistry Volume 2012, Article ID 657973, 7 pages, doi: 10.5402/2012/657973.
    1. Clements KM, Bollen AM, Huang G, King G, Hujoel P, Ma T. Activation time and material stiffness of sequential removable orthodontic appliances. Part 2: dental improvements. Am J Orthod Dentofacial Orthop. 2003;124:502–508.
    1. Baldwin DK, King G, Ramsay DS, Huang G, Bollen AM. Activation time and material stiffness of sequential removable orthodontic appliances. Part 3: premolar extraction patients. Am J Orthod Dentofacial Orthop. 2008;133:837–845.
    1. Burstone CR. Deep overbite correction by intrusion. Am J Orthod. 1977;72:1–22.
    1. Weiland FJ, Bantleon HP, Droschl H. Evaluation of continuous arch and segmented arch leveling techniques in adult patients—a clinical study. Am J Orthod Dentofacial Orthop. 1996;110:647–652.
    1. Greenlee GM, Huang GJ, Chen SS, Chen J, Koepsell T, Hujoel P. Stability of treatment for anterior open-bite malocclusion: a meta-analysis. Am J Orthod Dentofacial Orthop. 2011;139:154–169. doi: 10.1016/j.ajodo.2010.10.019.
    1. Proffit WR, Fields HW, Jr, Sarver DM. Contemporary Orthodontics. Elsevier Health Sciences; 2006.
    1. Nguyen CV, Chen J. Chapter 14. In: Tuncay OC, editor. The Invisalign System. New Malden, UK: Quintessence Publishing Company, Ltd; 2006. pp. 12–32.
    1. Krishnan V, Davidovitch Z. Cellular, molecular, and tissue-level reactions to orthodontic force. Am J Orthod Dentofacial Orthop. 2006;129:469.e1–469.e32.
    1. Cattaneo PM, Dalstra M, Melsen B. Strains in periodontal ligament and alveolar bone associated with orthodontic tooth movement analyzed by finite element. Orthod Craniofac Res. 2009;12:120–128.
    1. Nakao K, Goto T, Gunjigake KK, Konoo T, Kobayashi S, Yamaguchi K. Intermittent force induces high RANKL expression in human periodontal ligament cells. J Dent Res. 2007;86:623–628.

Source: PubMed

Szponzorok és közreműködők

Egészségi állapot

Kábítószer-beavatkozások

3
Iratkozz fel