{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,6]],"date-time":"2026-09-06T04:10:40Z","timestamp":1788667840551,"version":"build-2803163510"},"reference-count":34,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T00:00:00Z","timestamp":1777939200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthod"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives:<\/jats:title>\n                    <jats:p>To explore the prevalence of discrepancies between estimated and actual orthodontic treatment duration and identify predictors of treatment delays.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods:<\/jats:title>\n                    <jats:p>\n                      A total of 96 patients (62.5% female; age = 15.6 \u00b1 6.8 years) who completed an orthodontic treatment with pre-adjusted edgewise fixed appliances between 2015 and 2023 were retrospectively included. Differences between actual and estimated treatment duration &gt;3 months were classified as discrepancies and categorised as \u201coverestimation\u201d or \u201cunderestimation.\u201d Such discrepancies were compared on demographics, COVID period, and orthodontic parameters using Student\u2019s\n                      <jats:italic toggle=\"yes\">t<\/jats:italic>\n                      -tests and chi-square tests, as appropriate. Predictors of underestimated treatment duration were assessed with logistic regression analysis.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Actual treatment duration significantly differed from the estimated duration (26.5 \u00b1 9.6 vs. 21.6 \u00b1 3.6 months;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt;0.001), with 65.6% cases exhibiting treatment discrepancy (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.003) and 61.5% of them being underestimated (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.032). Cases with underestimated durations more commonly displayed posterior crossbite (30.9% vs. 5.4%;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.004), larger SNA angle (83.7 \u00b1 3.7 vs. 78.8 \u00b1 3.8 degrees;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.005), bracket debonding (53.4% vs. 31.4%;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.039; odds ratio [OR] = 2.51, 95% confidence interval [CI] = 1.04\u20136.04), and were most likely conducted during COVID period (33.9% vs. 10.8%;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.011; OR = 4.23, 95% CI = 1.31\u201313.62) compared to overestimated ones. Posterior crossbite (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.006) and COVID period (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.007) were significant predictors of treatment underestimation.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Approximately two-thirds of orthodontic treatments showed discrepancies between estimated and actual duration, with 61.5% being underestimated especially in presence of posterior crossbite and during COVID period.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/14653125261444745","type":"journal-article","created":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T03:29:47Z","timestamp":1778038187000},"page":"248-258","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Discrepancies between actual and expected orthodontic treatment duration with pre-adjusted edgewise fixed appliances: A case-control study of factors associated with treatment delays"],"prefix":"10.1177","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1386-5594","authenticated-orcid":false,"given":"Linda","family":"Sangalli","sequence":"first","affiliation":[{"name":"College of Dental Medicine \u2013 Illinois, Midwestern University, Downers Grove, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-1988-0042","authenticated-orcid":false,"given":"Diana Tucker","family":"De Sanctis","sequence":"additional","affiliation":[{"name":"Temple University Maurice H. Kornberg School of Dentistry, Philadelphia, PA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jahnavi","family":"Rao","sequence":"additional","affiliation":[{"name":"College of Dental Medicine \u2013 Illinois, Midwestern University, Downers Grove, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Quang","family":"Nguyen","sequence":"additional","affiliation":[{"name":"College of Dental Medicine \u2013 Illinois, Midwestern University, Downers Grove, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenedy","family":"Fomenko","sequence":"additional","affiliation":[{"name":"College of Dental Medicine \u2013 Illinois, Midwestern University, Downers Grove, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tina","family":"Shekari","sequence":"additional","affiliation":[{"name":"College of Dental Medicine \u2013 Arizona, Midwestern University, Glendale, AZ, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna","family":"Alessandri-Bonetti","sequence":"additional","affiliation":[{"name":"Institute of Dental Clinic and Maxillofacial Surgery \u2013 Catholic University of the Sacred Heart, Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9775-9344","authenticated-orcid":false,"given":"Fabio","family":"Savoldi","sequence":"additional","affiliation":[{"name":"Orthodontics, Dental School, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,5,5]]},"reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-024-05629-y"},{"key":"e_1_3_2_3_1","doi-asserted-by":"publisher","DOI":"10.5005\/jp-journals-10024-2313"},{"key":"e_1_3_2_4_1","doi-asserted-by":"publisher","DOI":"10.2319\/0003-3219-91.6.856"},{"key":"e_1_3_2_5_1","volume-title":"Fact Sheet: Informed Consent for the Orthodontic Patient: Risks and Limitations of Orthodontic Treatment","author":"American Association of Orthodontists","year":"2005","unstructured":"American Association of Orthodontists (2005) Fact Sheet: Informed Consent for the Orthodontic Patient: Risks and Limitations of Orthodontic Treatment. 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