{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T03:10:36Z","timestamp":1774408236870,"version":"3.50.1"},"reference-count":0,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,3,19]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To characterize functional changes of the airway while wearing an appliance simulating severe arch constriction using level 3 polysomnography.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>For this pilot, single-blinded prospective randomized cross-over trial, 34 participants were recruited from the student\/staff population of a dental school. Epworth Sleepiness Scale, STOPBANG questionnaire, lateral cephalograms, and digital dental casts were gathered from all patients. Arch constriction was simulated by adding 5 mm thickness to lingual aspects of the dentition using vacuum-formed retainers (VFRs). Each participant completed three at-home sleep studies with a level 3 sleep monitor: the initial baseline test, and after random allocation of 6 days wearing either the control appliance (regular-VFR), or the simulated arch constriction (SAC) appliance, and following crossover of appliances. Oxygen Desaturation Indices (ODIs) and Respiratory Event Index (REI) were compared.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Use of the SAC appliance did not affect airway function: No significant difference (\n                      <jats:italic>P<\/jats:italic>\n                      &gt; .05) was found in REI or ODI among the three groups. Five participants had REI values 5.0 or greater on at least one sleep study; however, this was unrelated to appliance use.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Simulated extreme dental arch constriction did not result in changes to REI. Constriction of the dental arches does not negatively affect airway function during sleep.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2319\/051925-396.1","type":"journal-article","created":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T01:25:09Z","timestamp":1773883509000},"source":"Crossref","is-referenced-by-count":0,"title":["Effects of simulated arch constriction on upper airway function during sleep"],"prefix":"10.2319","author":[{"given":"Da In","family":"Kim","sequence":"first","affiliation":[{"name":"Private Practice, Vancouver, BC, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manuel O.","family":"Lagrav\u00e8re","sequence":"additional","affiliation":[{"name":"Professor, Division of Orthodontics, University of Alberta, Edmonton, Alberta, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fernanda","family":"Almeida","sequence":"additional","affiliation":[{"name":"Professor, Oral Health Sciences, University of British Columbia, Vancouver, BC, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin T.","family":"Pliska","sequence":"additional","affiliation":[{"name":"Associate Professor, Division of Orthodontics, University of British Columbia, Vancouver, BC, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1164","container-title":["The Angle Orthodontist"],"original-title":[],"link":[{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/view\/journals\/angl\/aop\/article-10.2319-051925-396.1\/article-10.2319-051925-396.1.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/downloadpdf\/journals\/angl\/aop\/article-10.2319-051925-396.1\/article-10.2319-051925-396.1.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/downloadpdf\/journals\/angl\/aop\/article-10.2319-051925-396.1\/article-10.2319-051925-396.1.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T02:41:07Z","timestamp":1774406467000},"score":1,"resource":{"primary":{"URL":"https:\/\/angle-orthodontist.kglmeridian.com\/view\/journals\/angl\/aop\/article-10.2319-051925-396.1\/article-10.2319-051925-396.1.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,3,19]]},"references-count":0,"URL":"https:\/\/doi.org\/10.2319\/051925-396.1","relation":{},"ISSN":["1945-7103","0003-3219"],"issn-type":[{"value":"1945-7103","type":"electronic"},{"value":"0003-3219","type":"print"}],"subject":[],"published":{"date-parts":[[2026,3,19]]}}}