{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T05:41:35Z","timestamp":1771047695485,"version":"3.50.1"},"reference-count":29,"publisher":"Elsevier BV","issue":"5","license":[{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,11,1]],"date-time":"2021-11-01T00:00:00Z","timestamp":1635724800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ajodo.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Orthodontics and Dentofacial Orthopedics"],"published-print":{"date-parts":[[2021,11]]},"DOI":"10.1016\/j.ajodo.2020.05.028","type":"journal-article","created":{"date-parts":[[2021,7,29]],"date-time":"2021-07-29T11:41:37Z","timestamp":1627558897000},"page":"718-724","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":4,"title":["Comparison of 2 Invisalign tray generations using the Peer Assessment Rating index"],"prefix":"10.1016","volume":"160","author":[{"given":"Mary","family":"Griffith","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henry W.","family":"Fields","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andy","family":"Ni","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaohan","family":"Guo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Damian J.","family":"Lee","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toru","family":"Deguchi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajodo.2020.05.028_bib1","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1186\/s40510-014-0064-7","article-title":"Analysis of pain level in cases treated with Invisalign aligner: comparison with fixed edgewise appliance therapy","volume":"15","author":"Fujiyama","year":"2014","journal-title":"Prog Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib2","doi-asserted-by":"crossref","first-page":"698.e1","DOI":"10.1016\/j.ajodo.2010.06.012","article-title":"Orthodontic appliance preferences of children and adolescents","volume":"138","author":"Walton","year":"2010","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib3","doi-asserted-by":"crossref","first-page":"539","DOI":"10.1093\/ejo\/cju083","article-title":"Periodontal health during clear aligners treatment: a systematic review","volume":"37","author":"Rossini","year":"2015","journal-title":"Eur J Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib4","series-title":"Align technology, I","year":"2019"},{"key":"10.1016\/j.ajodo.2020.05.028_bib5","first-page":"263","article-title":"Clinical limitations of Invisalign","volume":"73","author":"Phan","year":"2007","journal-title":"J Can Dent Assoc"},{"key":"10.1016\/j.ajodo.2020.05.028_bib7","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1186\/s40510-018-0235-z","article-title":"Clinical effectiveness of Invisalign orthodontic treatment: a systematic review","volume":"19","author":"Papadimitriou","year":"2018","journal-title":"Prog Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib8","doi-asserted-by":"crossref","first-page":"835","DOI":"10.4012\/dmj.2017-323","article-title":"Mechanical properties of \u201ctwo generations\u201d of teeth aligners: change analysis during oral permanence","volume":"37","author":"Condo'","year":"2018","journal-title":"Dent Mater J"},{"key":"10.1016\/j.ajodo.2020.05.028_bib9","doi-asserted-by":"crossref","first-page":"432","DOI":"10.1007\/s00056-016-0051-3","article-title":"Patient survey on Invisalign treatment comparing [corrected] the SmartTrack material to the previously used [corrected] aligner material","volume":"77","author":"Br\u00e4scher","year":"2016","journal-title":"J Orofac Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib10","doi-asserted-by":"crossref","first-page":"589","DOI":"10.1016\/S0889-5406(98)70179-9","article-title":"Objective grading system for dental casts and panoramic radiograps. American Board of Orthodontics","volume":"114","author":"Casko","year":"1998","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib11","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1093\/ejo\/14.3.180","article-title":"The PAR Index (Peer Assessment Rating): methods to determine outcome of orthodontic treatment in terms of improvement and standards","volume":"14","author":"Richmond","year":"1992","journal-title":"Eur J Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib12","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1016\/j.ajodo.2004.04.035","article-title":"Comparison of peer assessment rating (PAR) index scores of plaster and computer-based digital models","volume":"128","author":"Mayers","year":"2005","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib13","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1016\/j.ajodo.2016.06.041","article-title":"Evaluation of Invisalign treatment effectiveness and efficiency compared with conventional fixed appliances using the peer assessment rating index","volume":"151","author":"Gu","year":"2017","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib14","series-title":"R, A language and environment for statistical computing","year":"2018"},{"key":"10.1016\/j.ajodo.2020.05.028_bib15","doi-asserted-by":"crossref","first-page":"292","DOI":"10.1016\/j.ajodo.2005.06.002","article-title":"Outcome assessment of Invisalign and traditional orthodontic treatment compared with the American Board of Orthodontics objective grading system","volume":"128","author":"Djeu","year":"2005","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib16","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1093\/ejo\/21.2.181","article-title":"An appraisal of the Peer Assessment Rating (PAR) Index and a suggested new weighting system","volume":"21","author":"Hamdan","year":"1999","journal-title":"Eur J Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib17","first-page":"157","article-title":"A comparison of orthodontic treatment outcomes using the Objective Grading System (OGS) and the Peer Assessment Rating (PAR) Index","volume":"31","author":"Chalabi","year":"2015","journal-title":"Aust Orthod J"},{"key":"10.1016\/j.ajodo.2020.05.028_bib18","doi-asserted-by":"crossref","first-page":"864","DOI":"10.2319\/100106-398.1","article-title":"Invisalign and traditional orthodontic treatment postretention outcomes compared using the American Board of Orthodontics objective grading system","volume":"77","author":"Kuncio","year":"2007","journal-title":"Angle Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib19","doi-asserted-by":"crossref","first-page":"427.e1","DOI":"10.1016\/j.ajodo.2007.02.050","article-title":"Need for training sessions for orthodontists in the use of the American Board of Orthodontics objective grading system","volume":"132","author":"Muakami","year":"2007","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib20","doi-asserted-by":"crossref","first-page":"209","DOI":"10.14712\/18059694.2017.134","article-title":"Evaluation of the stability after orthodontic treatment using PAR Index","volume":"49","author":"Ramanathan","year":"2006","journal-title":"Acta Medica (Hradec Kralove)"},{"key":"10.1016\/j.ajodo.2020.05.028_bib21","doi-asserted-by":"crossref","first-page":"444","DOI":"10.1016\/j.ajodo.2004.03.029","article-title":"Long-term posttreatment changes measured by the American Board of Orthodontics objective grading system","volume":"127","author":"Nett","year":"2005","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib22","doi-asserted-by":"crossref","first-page":"463","DOI":"10.1067\/mod.2002.128465","article-title":"Evaluation of the peer assessment rating (PAR) index as an index of orthodontic treatment need","volume":"122","author":"Firestone","year":"2002","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib23","doi-asserted-by":"crossref","first-page":"391","DOI":"10.1016\/j.ajodo.2013.04.018","article-title":"Validation of the American Board of Orthodontics Objective Grading System for assessing the treatment outcomes of Chinese patients","volume":"144","author":"Song","year":"2013","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib24","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1016\/S0889-5406(95)70133-8","article-title":"The validation of the peer assessment rating index for malocclusion severity and treatment difficulty","volume":"107","author":"DeGuzman","year":"1995","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"10.1016\/j.ajodo.2020.05.028_bib25","first-page":"556","article-title":"Clinical use of the ABO-scoring index: reliability and subtraction frequency","volume":"73","author":"Lieber","year":"2003","journal-title":"Angle Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib26","doi-asserted-by":"crossref","first-page":"125","DOI":"10.1093\/ejo\/14.2.125","article-title":"The development of the PAR Index (Peer Assessment Rating): reliability and validity","volume":"14","author":"Richmond","year":"1992","journal-title":"Eur J Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib27","doi-asserted-by":"crossref","first-page":"974","DOI":"10.2319\/010114-001.1","article-title":"Relationship between pretreatment case complexity and orthodontic clinical outcomes determined by the American Board of Orthodontics criteria","volume":"84","author":"Cansunar","year":"2014","journal-title":"Angle Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib28","doi-asserted-by":"crossref","first-page":"78","DOI":"10.14219\/jada.archive.2004.0024","article-title":"ADA Council on Scientific Affairs and Division of Science, Journal of the American Dental Association. Evidence-based dentistry in clinical practice","volume":"135","author":"Ismail","year":"2004","journal-title":"J Am Dent Assoc"},{"key":"10.1016\/j.ajodo.2020.05.028_bib29","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1053\/j.sodo.2013.03.003","article-title":"Orthodontic research: if we know the answers, are we asking the right questions?","volume":"19","author":"O'Brien","year":"2013","journal-title":"Semin Orthod"},{"key":"10.1016\/j.ajodo.2020.05.028_bib30","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/S1073-8746(99)80028-0","article-title":"Developing outcome measures in orthodontics that reflect patient and provider values","volume":"5","author":"Vig","year":"1999","journal-title":"Semin Orthod"}],"container-title":["American Journal of Orthodontics and Dentofacial Orthopedics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0889540621004157?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0889540621004157?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:10:38Z","timestamp":1760173838000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0889540621004157"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,11]]},"references-count":29,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2021,11]]}},"alternative-id":["S0889540621004157"],"URL":"https:\/\/doi.org\/10.1016\/j.ajodo.2020.05.028","relation":{},"ISSN":["0889-5406"],"issn-type":[{"value":"0889-5406","type":"print"}],"subject":[],"published":{"date-parts":[[2021,11]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Comparison of 2 Invisalign tray generations using the Peer Assessment Rating index","name":"articletitle","label":"Article Title"},{"value":"American Journal of Orthodontics and Dentofacial Orthopedics","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajodo.2020.05.028","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 by the American Association of Orthodontists. All rights reserved.","name":"copyright","label":"Copyright"}]}}