{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:16:08Z","timestamp":1787015768695,"version":"build-2736575974"},"reference-count":28,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,2,22]],"date-time":"2025-02-22T00:00:00Z","timestamp":1740182400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthod Craniofacial Res"],"published-print":{"date-parts":[[2025,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Treatment efficiency is considered an important clinical variable in orthodontic practice; therefore, the aim of this study was to compare the efficiency between different Class II compensatory treatment approaches. The extraction of 2 maxillary premolars was compared to molar distalization with the First Class distaliser indirectly anchored to mini\u2010implants.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      A retrospective sample of 31 patients was divided into two groups. Group 1: Class II treatment with two premolar extractions; 18 patients with a mean initial age of 14.3\u2009\u00b1\u20091.3\u2009years. Group 2: Distalization with the First Class appliance indirectly anchored to mini\u2010implants; 13 patients with a mean initial age of 13.3\u2009\u00b1\u20091.3\u2009years. The Peer Assessment Rating (PAR) and the Objective Grading System (OGS) were used to calculate the percentage of occlusal improvement (PcPAR), treatment time (TT) and treatment efficiency index (TEI). The occlusal indexes, TT and TEI between both groups were compared using\n                      <jats:italic>t<\/jats:italic>\n                      tests (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Similar occlusal outcomes were observed between the groups, with no statistically significant differences (F\u2010PAR and OGS). The TT in Group 1 was significantly shorter compared to Group 2. As a result, treatment with extractions was significantly more efficient (TEI: 3.23) than the treatment with maxillary molar distalization anchored indirectly to mini\u2010implants (TEI: 1.95).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Both treatment protocols showed similar occlusal results; however, Class II correction with two premolar extractions is significantly more efficient than molar distalization with indirect skeletal anchorage.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ocr.12905","type":"journal-article","created":{"date-parts":[[2025,2,22]],"date-time":"2025-02-22T05:00:01Z","timestamp":1740200401000},"page":"547-554","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Efficiency of Class II Malocclusion Treatment With Extraction of 2 Maxillary Premolars and the First Class Appliance Anchored in Mini\u2010Implants"],"prefix":"10.1111","volume":"28","author":[{"given":"Diego Luiz","family":"Tonello","sequence":"first","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6406-5792","authenticated-orcid":false,"given":"Helo\u00edsa Nelson","family":"Cavalcanti","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vin\u00edcius Ribeiro","family":"de Almeida L\u00e1zaro","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvio Augusto","family":"Bellini\u2010Pereira","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aron Aliaga\u2010Del","family":"Castillo","sequence":"additional","affiliation":[{"name":"Department of Orthodontics and Pediatric Dentistry, School of Dentistry University of Michigan  Ann Arbor Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Fernando Castanha","family":"Henriques","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela","family":"Garib","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guilherme","family":"Janson","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Bauru Dental School University of S\u00e3o Paulo  Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,2,22]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjv039"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2005.10.031"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2005.12.026"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2006.11.018"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjl031"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjn115"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2007.10.002"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-5406(00)70238-1"},{"issue":"4","key":"e_1_2_11_10_1","first-page":"249","article-title":"Distal Molar Movement Using the Pendulum Appliance. 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