{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T10:22:16Z","timestamp":1780482136446,"version":"3.54.1"},"reference-count":56,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,5]]},"abstract":"ABSTRACT<\/jats:title>\n \n Objectives<\/jats:title>\n To examine relapse with thermoplastic retainers equipped with microsensors 1 year after treatment.<\/jats:p>\n <\/jats:sec>\n \n Materials and Methods<\/jats:title>\n A total of 42 patients (29 females, 13 males) treated with four premolar extractions were included in this study. Thermoplastic appliances equipped with TheraMon microsensors (Handelsagentur Gschladt, Hargelsberg, Austria) were used to assess daily wear time (DWT), and the patients were monitored at 2-month intervals for a period of 12 months. At the end of the follow-up, the following two groups were formed based on the mean DWT: short wear time (SWT; <9 h\/d) and long wear time (LWT; \u22659 h\/d). Digital models were constructed before treatment (T0), at debonding (T1), and 6 months (T2) and 12 months (T3) after debonding. Little's Irregularity Index (LII) and the intercanine and intermolar widths, arch lengths, overjet, and overbite were calculated based on the digital models. Data were analyzed statistically.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Irregularity and overjet increased, whereas transverse measurements and arch lengths decreased with time in both groups. During the retention period, overbite decreased in the SWT group but increased in the LWT group. There were significant differences between groups only in mandibular irregularity. The LII values of the SWT group were significantly higher than those of the LWT group for the T1\u2013T2 and T1\u2013T3 time intervals (\n P<\/jats:italic>\n < .05).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n A mean DWT less than 9 hours\/day was inadequate for controlling irregularity within clinically acceptable limits. A wear time of at least 9 h\/d is recommended for the maintenance of mandibular anterior alignment.<\/jats:p>\n <\/jats:sec>","DOI":"10.2319\/072221-578.1","type":"journal-article","created":{"date-parts":[[2022,1,25]],"date-time":"2022-01-25T11:57:18Z","timestamp":1643111838000},"page":"340-346","source":"Crossref","is-referenced-by-count":7,"title":["Evaluation of relapse with thermoplastic retainers equipped with microsensors"],"prefix":"10.2319","volume":"92","author":[{"given":"Sait","family":"\u0130shako\u011flu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Serpil","family":"\u00c7okako\u011flu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i1945-7103-92-3-340-b01","series-title":"Am J Orthod","first-page":"456","article-title":"Long-term assessment of orthodontic 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Orthod.\n\t\t\t\t\t1982;\n\t\t\t\t\t82:\n\t\t\t\t\t456\u2013\n\t\t\t\t\t463."},{"key":"i1945-7103-92-3-340-b02","series-title":"Aust Dent J","first-page":"51","article-title":"Retention and relapse in clinical practice","volume":"62","author":"Littlewood","year":"2017","unstructured":"Littlewood\n S,\n \n \n Kandasamy\n S,\n \n \n Huang\n G.\n \n \n Retention and relapse in clinical practice.\n\t\t\t\t\tAust Dent J.\n\t\t\t\t\t2017;\n\t\t\t\t\t62:\n\t\t\t\t\t51\u2013\n\t\t\t\t\t57."},{"key":"i1945-7103-92-3-340-b03","series-title":"Dent Update","first-page":"24","article-title":"Vacuum-formed retainers: an overview","volume":"42","author":"Meade","year":"2015","unstructured":"Meade\n MJ,\n \n \n Millett\n DT.\n \n \n Vacuum-formed retainers: an overview.\n\t\t\t\t\tDent Update.\n\t\t\t\t\t2015;\n\t\t\t\t\t42:\n\t\t\t\t\t24\u2013\n\t\t\t\t\t34."},{"key":"i1945-7103-92-3-340-b04","series-title":"Br Dent J","first-page":"765","article-title":"Removable retention: enhancing adherence and the remit of shared decision-making","volume":"230","author":"Al-Moghrabi","year":"2021","unstructured":"Al-Moghrabi\n D,\n \n \n Barber\n S,\n \n \n Fleming\n PS.\n \n \n Removable retention: enhancing adherence and the remit of shared decision-making.\n\t\t\t\t\tBr Dent J.\n\t\t\t\t\t2021;\n\t\t\t\t\t230:\n\t\t\t\t\t765\u2013\n\t\t\t\t\t769."},{"key":"i1945-7103-92-3-340-b05","series-title":"Eur J Orthod","article-title":"Effectiveness of removable appliances with temperature sensors in orthodontic patients: a systematic review and meta-analysis","author":"Moreno-Fern\u00e1ndez","year":"2021]","unstructured":"Moreno-Fern\u00e1ndez\n A,\n \n \n Iranzo-Cort\u00e9s\n JE,\n \n \n Paredes-Gallardo\n V,\n \n et al.\n \n Effectiveness of removable appliances with temperature sensors in orthodontic patients: a systematic review and meta-analysis\n [published online ahead of print June 8,\n 2021].\n\t\t\t\t\tEur J Orthod.\n\t\t\t\t\tdoi:10.1093\/ejo\/cjab033."},{"key":"i1945-7103-92-3-340-b06","series-title":"J Can Dent Assoc.","article-title":"Accuracy of thermosensitive microsensors intended to monitor patient use of removable oral appliances","volume":"84","author":"Kirshenblatt","year":"2018","unstructured":"Kirshenblatt\n S,\n \n \n Chen\n H,\n \n \n Dieltjens\n M,\n \n \n Pliska\n B,\n \n \n Almeida\n FR.\n \n \n Accuracy of thermosensitive microsensors intended to monitor patient use of removable oral appliances.\n\t\t\t\t\tJ Can Dent Assoc.2018;\n\t\t\t\t\t84:\n\t\t\t\t\ti2."},{"key":"i1945-7103-92-3-340-b07","series-title":"Orthodontics (Chic.)","first-page":"22","article-title":"Posttreatment compliance with removable maxillary retention in a teenage population: a short-term randomized clinical trial","volume":"12","author":"Ackerman","year":"2011","unstructured":"Ackerman\n MB,\n \n \n Thornton\n B.\n \n \n Posttreatment compliance with removable maxillary retention in a teenage 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cross-sectional cohort study","volume":"84","author":"Tsomos","year":"2014","unstructured":"Tsomos\n G,\n \n \n Ludwig\n B,\n \n \n Grossen\n J,\n \n \n Pazera\n P,\n \n \n Gkantidis\n N.\n \n \n Objective assessment of patient compliance with removable orthodontic appliances: a cross-sectional cohort study.\n\t\t\t\t\tAngle Orthod.\n\t\t\t\t\t2014;\n\t\t\t\t\t84:\n\t\t\t\t\t56\u2013\n\t\t\t\t\t61."},{"key":"i1945-7103-92-3-340-b10","series-title":"Angle Orthod","first-page":"263","article-title":"Patient compliance with Hawley retainers fitted with the SMART(\u00ae) sensor: a prospective clinical pilot study","volume":"85","author":"Hyun","year":"2015","unstructured":"Hyun\n P,\n \n \n Preston\n CB,\n \n \n Al-Jewair\n TS,\n \n \n Park-Hyun\n E,\n \n \n Tabbaa\n S.\n \n \n Patient compliance with Hawley retainers fitted with the SMART(\u00ae) sensor: a prospective clinical pilot study.\n\t\t\t\t\tAngle 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