[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100580428":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":30,"centralContacts":34,"locations":40,"responsibleParty":59,"collaborators":25,"id":63,"slug":64,"hasResults":65,"nctId":66,"briefTitle":67,"officialTitle":68,"acronym":25,"eligibilityCriteria":69,"healthyVolunteers":65,"sex":70,"minAge":71,"maxAge":72,"enrollmentInfo":73,"targetDuration":25,"studyType":76,"phases":77,"briefSummary":79,"conditions":80,"keywords":25,"overallStatus":84,"whyStopped":25,"lastUpdateSubmitDate":85,"lastUpdatePostDateStruct":86,"startDateStruct":89,"completionDateStruct":91,"leadSponsor":93,"locationsCount":94},{"fullName":5,"class":6},"University of Baghdad","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"CAD\u002FCAM 3D Printed Chrome Cobalt Fixed Retainers group","ACTIVE_COMPARATOR","The participant will receive a fixed retainer fabricated using computer-aided design and computer-aided manufacturing (CAD\u002FCAM) technology. The retainer will be constructed from cobalt-chromium. The CAD\u002FCAM process involved scanning the patient's dental arch to create a digital model, which was then used to design the retainer. The retainer will be bonded to the lingual surfaces of the mandibular incisors and canines, extending from canine to canine. Participants were instructed to maintain proper oral hygiene and attend regular follow-up appointments.",[13],"Device: 3D printed CAD\u002FCAM Chrome cobalt fixed lingual retainers",{"label":15,"type":10,"description":16,"interventionNames":17},"Stainless steel Fixed Retainer group","participants will receive a fixed orthodontic retainer fabricated from a 0.0215-inch, five-stranded stainless steel wire. The retainer will be bonded to the lingual surfaces of the mandibular incisors and canines, extending from canine to canine. Participants were instructed to maintain proper oral hygiene and attend regular follow-up appointments.",[18],"Device: Stainless steel fixed retainer",[20,26],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"DEVICE","Stainless steel fixed retainer","The Stainless steel fixed orthodontic retainer is fabricated from a 0.0215-inch, five-stranded stainless steel wire",[15],null,{"type":21,"name":27,"description":28,"armGroupLabels":29,"otherNames":25},"3D printed CAD\u002FCAM Chrome cobalt fixed lingual retainers","CAD\u002FCAM Chrome cobalt retainers; will be digitally designed by the dental technician using EXOCAD software. Then, they will be printed by DMP Flex100 metal 3D printer and then will be polished. Also, a projection like extensions will be added at the ends of the retainers to avoid slippage in addition to gingivally directed V notch shaped bend in the retainer to increase the retention in the anterior region",[9],[31],{"name":32,"affiliation":5,"role":33},"Prof. Dr. Ali Mohammed Hameed","STUDY_DIRECTOR",[35],{"name":36,"role":37,"phone":38,"phoneExt":25,"email":39},"Hiba Muhammed Abdul-Wahhab","CONTACT","009647711144894","hiba.abd2403p@codental.uobaghdad.edu.iq",[41],{"facility":42,"status":25,"city":43,"state":44,"zip":45,"country":46,"countryCode":47,"cosmosGeoPoint":48,"geoPoint":53,"contacts":54},"University of Baghdad - College of Dentistry","Baghdad","Baghdad Governorate","10071","Iraq","IQ",{"type":49,"coordinates":50},"Point",[51,52],44.40088,33.34058,{"lat":52,"lon":51},[55,58],{"name":42,"role":37,"phone":56,"phoneExt":25,"email":57},"009647519962021","master@codental.uobaghdad.edu.iq",{"name":32,"role":37,"phone":25,"phoneExt":25,"email":25},{"type":60,"investigatorFullName":61,"investigatorTitle":62,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"PRINCIPAL_INVESTIGATOR","Hiba Muhammed","Principal investigator","100580428","clinical-effectiveness-of-cobalt-chromium-cad-cam-designed-customized-lingual-retainer-100580428",false,"NCT06837168","Clinical Effectiveness of Cobalt Chromium CAD-CAM Designed Customized Lingual Retainer","Clinical Effectiveness of Cobalt Chromium CAD-CAM Designed Customized Lingual Retainer: a Randomized Clinical Trial","Inclusion Criteria:\n\n* Completion of a course of fixed appliance therapy.\n* with a satisfactory correction of malocclusion and dental alignment.\n* Class I canine relationship based on Andrew's criteria for finishing.\n* Patients with a history of constant oral hygiene measures daily.\n* Good general health.\n* Subjects had a full and normal complement of teeth in the lower labial segments.\n* Teeth within the labial segments should be regularly sized and shaped.\n* Subjects willing to consent to the trial.\n\nExclusion Criteria:\n\n* Patients with a deep overbite\n* Patients with traumatic parafunctional habits such as bruxism and clenching.\n* Patients with carious, restored, fractured, or missing lower anterior teeth.\n* Patients with medical health problems that may influence gingival health, like uncontrolled type II diabetic patients.\n* patients under systemic drug administration that affects oral health.\n* Smokers","ALL","12 Years","25 Years",{"count":74,"type":75},42,"ESTIMATED","INTERVENTIONAL",[78],"NA","This study aims to evaluate the clinical effectiveness of CAD\u002FCAM 3D printed Chrome Cobalt fixed retainer in maintaining mandibular anterior teeth stability.\n\nThe Research Question; \"Does the Cobalt-Chromium CAD\u002FCAM designed customized lingual retainer better than Stainless steel lingual retainer in improving tooth stability after orthodontic treatment?\" The null hypothesis \"There is no differences between the fixed CAD\u002FCAM 3D printed Chrome Cobalt customized retainer and the multi-stranded stainless-steel fixed retainer in maintaining mandibular anterior teeth stability.\"",[81,82,83],"Tooth Stability","Periodontal Health","Patient Satisfaction","NOT_YET_RECRUITING","2025-02-23",{"date":87,"type":88},"2025-02-25","ACTUAL",{"date":90,"type":75},"2025-07-01",{"date":92,"type":75},"2026-12-30",{"name":5,"class":6},1]