{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T11:19:51Z","timestamp":1780485591301,"version":"3.54.1"},"reference-count":30,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2011,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n        <jats:sec>\n          <jats:title>Objective:<\/jats:title>\n          <jats:p>To determine the effectiveness of orthodontic treatment finalized on the maintenance\/improvement the upper arch perimeter to assist in the successful eruption of palatally displaced maxillary canines (PDCs).<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Materials and Methods:<\/jats:title>\n          <jats:p>The randomized prospective design comprised 64 subjects with PDCs who were randomly assigned to one of three groups: cervical pull headgear (HG); rapid maxillary expansion and cervical pull headgear (RME\/HG); or untreated control group (CG). Panoramic radiographs and lateral cephalograms were evaluated at the time of initial observation (T1) and after an average period of 18\u00a0months (T2). At T2 the success of canine eruption was evaluated. A superimposition study on lateral cephalograms was undertaken to evaluate the T1\u2013T2 changes in the sagittal position of the upper molars in the three groups.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Results:<\/jats:title>\n          <jats:p>The prevalence of successful eruption was 85.7% in the RME\/HG group and 82.3% in the HG group. Both these prevalence rates were significantly greater than the success rate in untreated control subjects (36%). The cephalometric superimposition study showed a significant mesial movement of the upper first molars in the CG compared with the HG and RME\/HG groups.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Conclusions:<\/jats:title>\n          <jats:p>The use of rapid maxillary expansion and headgear (or headgear alone) in PDC cases increases the success rate of eruption of the canine significantly (almost three times more than in untreated controls).<\/jats:p>\n        <\/jats:sec>","DOI":"10.2319\/062210-339.1","type":"journal-article","created":{"date-parts":[[2011,2,7]],"date-time":"2011-02-07T15:46:16Z","timestamp":1297093576000},"page":"370-374","source":"Crossref","is-referenced-by-count":50,"title":["Effect of RME and headgear treatment on the eruption of palatally displaced canines: A randomized clinical study"],"prefix":"10.2319","volume":"81","author":[{"given":"Pamela","family":"Armi","sequence":"first","affiliation":[{"name":"Research Assistant, Department of Orthodontics, The University of Florence, Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paola","family":"Cozza","sequence":"additional","affiliation":[{"name":"Professor and Department Chair, Department of Orthodontics, Universit\u00e0 degli Studi di Roma \u201cTor Vergata,\u201d Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tiziano","family":"Baccetti","sequence":"additional","affiliation":[{"name":"Associate Professor, Department of Orthodontics, The University of Florence, Florence, Italy; Thomas M. Graber Visiting Scholar, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, The University of Michigan, Ann Arbor, Mich"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i0003-3219-81-3-370-b01","series-title":"Angle Orthod","first-page":"473","article-title":"Site-specificity of tooth maxillary agenesis in subjects with canine malpositions.","volume":"66","author":"Peck, S.","year":"1996","unstructured":"Peck, S., L.Peck, and M.Kataja. Site-specificity of tooth maxillary agenesis in subjects with canine malpositions.Angle Orthod1996. 66:473\u2013476."},{"key":"i0003-3219-81-3-370-b02","series-title":"Acta Odont Scand","first-page":"145","article-title":"Local factors in impaction of maxillary canines.","volume":"26","author":"Thilander, B.","year":"1968","unstructured":"Thilander, B. and S.Jakobsson. 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Prevalence of impacted teeth and associated pathologies\u2014a radiographic study of the Hong Kong Chinese population.Hong Kong Med J2003. 9:158\u2013163."},{"key":"i0003-3219-81-3-370-b07","series-title":"Angle Orthod","first-page":"581","article-title":"Two interceptive approaches to palatally displaced canines: a prospective longitudinal study.","volume":"75","author":"Leonardi, M.","year":"2004","unstructured":"Leonardi, M., P.Armi, L.Franchi, and T.Baccetti. Two interceptive approaches to palatally displaced canines: a prospective longitudinal study.Angle Orthod2004. 75:581\u2013586."},{"key":"i0003-3219-81-3-370-b08","series-title":"Eur J Orthod","first-page":"381","article-title":"A randomized clinical study of two interceptive approaches to palatally displaced canines.","volume":"30","author":"Baccetti, T.","year":"2008","unstructured":"Baccetti, T., M.Leonardi, and P.Armi. 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A computed tomographic study of erupting maxillary canines.Angle Orthod2002. 72:95\u2013104."},{"key":"i0003-3219-81-3-370-b13","series-title":"Am J Orthod Dentofacial Orthop","first-page":"159","article-title":"Impacted maxillary canines: a review.","volume":"101","author":"Bishara, S. E.","year":"1992","unstructured":"Bishara, S. E.\n          . Impacted maxillary canines: a review.Am J Orthod Dentofacial Orthop1992. 101:159\u2013171."},{"key":"i0003-3219-81-3-370-b14","series-title":"Br J Orthod","first-page":"209","article-title":"The ectopic maxillary canine: a review.","volume":"25","author":"McSherry, P. F.","year":"1998","unstructured":"McSherry, P. F.\n          . The ectopic maxillary canine: a review.Br J Orthod1998. 25:209\u2013216."},{"key":"i0003-3219-81-3-370-b15","series-title":"Am J Orthod Dentofacial Orthop","first-page":"640","article-title":"Palatally ectopic canines: closed eruption versus open eruption.","volume":"115","author":"Burden, D. J.","year":"1999","unstructured":"Burden, D. J., B. H.Mullally, and S. N.Robinson. Palatally ectopic canines: closed eruption versus open eruption.Am J Orthod Dentofacial Orthop1999. 115:640\u2013644."},{"key":"i0003-3219-81-3-370-b16","series-title":"Br J Orthod","first-page":"339","article-title":"Management of the palatal ectopic and unerupted maxillary canine.","volume":"18","author":"Usiskin, L. A.","year":"1991","unstructured":"Usiskin, L. A.\n          . Management of the palatal ectopic and unerupted maxillary canine.Br J Orthod1991. 18:339\u2013346."},{"key":"i0003-3219-81-3-370-b17","series-title":"J Am Dent Assoc","first-page":"1767","article-title":"Immediate placement of implants in extraction sites of maxillary impacted canines.","volume":"130","author":"Mazor, Z.","year":"1999","unstructured":"Mazor, Z., M.Peleg, and M.Redlich. 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Combined surgical and orthodontic approach to reproduce the physiologic eruption pattern in impacted canine: report of 25 patients.Int J Period Rest Dent2007. 27:529\u2013537."}],"container-title":["The Angle Orthodontist"],"original-title":[],"link":[{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/view\/journals\/angl\/81\/3\/article-p370.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/downloadpdf\/journals\/angl\/81\/3\/article-p370.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/downloadpdf\/journals\/angl\/81\/3\/article-p370.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,5,16]],"date-time":"2025-05-16T00:55:16Z","timestamp":1747356916000},"score":1,"resource":{"primary":{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/view\/journals\/angl\/81\/3\/article-p370.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,5]]},"references-count":30,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.2319\/062210-339.1","relation":{},"ISSN":["0003-3219","1945-7103"],"issn-type":[{"value":"0003-3219","type":"print"},{"value":"1945-7103","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,5]]}}}