[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100614504":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":29,"centralContacts":34,"locations":40,"responsibleParty":56,"collaborators":25,"id":60,"slug":61,"hasResults":62,"nctId":63,"briefTitle":64,"officialTitle":65,"acronym":25,"eligibilityCriteria":66,"healthyVolunteers":62,"sex":67,"minAge":68,"maxAge":69,"enrollmentInfo":70,"targetDuration":25,"studyType":73,"phases":74,"briefSummary":76,"conditions":77,"keywords":80,"overallStatus":43,"whyStopped":25,"lastUpdateSubmitDate":87,"lastUpdatePostDateStruct":88,"startDateStruct":91,"completionDateStruct":93,"leadSponsor":95,"locationsCount":96},{"fullName":5,"class":6},"University of Baghdad","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Gold-coated fixed retainer wire","EXPERIMENTAL","Participants will receive a mandibular canine-to-canine fixed retainer fabricated and bonded using the standardized protocol. The allocated device is a 0.0195-inch gold-plated multistranded wire (penta twist, five-strand).",[13],"Device: Gold-coated fixed retainer wire",{"label":15,"type":16,"description":17,"interventionNames":18},"Stainless steel fixed retainer wire","ACTIVE_COMPARATOR","Participants will receive a mandibular canine-to-canine fixed retainer fabricated and bonded using the standardized protocol. The allocated device is a 0.0195-inch dead-soft multistranded stainless-steel wire (coaxial, six-strand).",[19],"Device: Stainless steel fixed retainer wire",[21,26],{"type":22,"name":9,"description":23,"armGroupLabels":24,"otherNames":25},"DEVICE","Participants will receive a bonded mandibular fixed retainer extending canine-to-canine. The retainer will be fabricated using a gold-coated retainer wire and bonded to the lingual surfaces of the mandibular anterior teeth using standard orthodontic bonding procedures. After placement, participants will be followed at scheduled visits (baseline and follow-ups at 1 month, 3 months, and 6 months) to evaluate clinical stability and retainer performance. At each follow-up visit, the retainer will be clinically examined for integrity, and any failure\u002Fcomplication events will be recorded (e.g., debonding\u002Floosening, fracture, or need for repair). Clinical outcome assessments will include mandibular anterior alignment\u002Fstability (Little's Irregularity Index), periodontal indices, and occlusal assessment, Microbiological sampling will consist of plaque\u002Fswab samples collected at each follow-up visit.",[9],null,{"type":22,"name":15,"description":27,"armGroupLabels":28,"otherNames":25},"Participants will receive a bonded mandibular fixed retainer extending canine-to-canine. The retainer will be fabricated using a conventional stainless steel retainer wire and bonded to the lingual surfaces of the mandibular anterior teeth using standard orthodontic bonding procedures. After placement, participants will be followed at scheduled visits (baseline and follow-ups at, 1 month, 3 months, and 6 months) to evaluate clinical stability and retainer performance. At each follow-up visit, the retainer will be clinically examined for integrity, and any failure\u002Fcomplication events will be recorded (e.g., debonding\u002Floosening, fracture, or need for repair). Clinical outcome assessments will include mandibular anterior alignment\u002Fstability (Little's Irregularity Index), periodontal indices, and occlusal assessment. Microbiological sampling will consist of plaque\u002Fswab samples collected at each follow-up visit.",[15],[30],{"name":31,"affiliation":32,"role":33},"NOOR NOOR, BDS","noor sattar","PRINCIPAL_INVESTIGATOR",[35],{"name":36,"role":37,"phone":38,"phoneExt":25,"email":39},"NOOR Raheem, BDS","CONTACT","+9647704514927","Noor.sattar2403@codental.uobaghdad.edu.iq",[41],{"facility":42,"status":43,"city":44,"state":45,"zip":25,"country":46,"countryCode":47,"cosmosGeoPoint":48,"geoPoint":53,"contacts":54},"College of Dentistry, University of Baghdad - Orthodontic Clinics","RECRUITING","Baghdad","Baghdad Governorate","Iraq","IQ",{"type":49,"coordinates":50},"Point",[51,52],44.40088,33.34058,{"lat":52,"lon":51},[55],{"name":36,"role":37,"phone":38,"phoneExt":25,"email":39},{"type":57,"investigatorFullName":58,"investigatorTitle":59,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"SPONSOR_INVESTIGATOR","Noor Sattar Raheem","Postgraduate Researcher (Principal Investigator)","100614504","effectiveness-of-gold-fixed-retainers-compared-to-conventional-stainless-steel-retainers-100614504",false,"NCT07280455","Effectiveness of Gold Fixed Retainers Compared to Conventional Stainless Steel Retainers","The Effectiveness of Gold Fixed Retainers Compared to Conventional Stainless Steel Retainers: A Randomized Clinical Trial","Inclusion Criteria:\n\n* Age: 15-30 years.\n* Patients who have completed comprehensive orthodontic treatment ,with well-aligned mandibular anterior teeth (Little's Irregularity Index ≤ 0.5 mm) at debond; both extraction and non-extraction cases are eligible.\n* Patients with good oral hygiene and healthy periodontium at baseline; no previous bonded retainer.\n* All mandibular anterior teeth present (canine-canine), with sound lingual enamel suitable for bonding.\n\nExclusion Criteria:\n\n* Patients with a history of rapid maxillary expansion (RME) or surgically assisted RME (SARME).\n* Patients with a cleft lip \u002F and or palate (craniofacial anomalies).\n* Patients with marked deep overbite and\u002For parafunctional habits (e.g., bruxism, clenching).\n* Patients with conditions precluding reliable bonding in the mandibular anterior segment (active caries, extensive restorations, enamel fractures) or missing teeth from canine to canine.\n* Patients with medical\u002Fperiodontal conditions likely to affect gingival health (e.g., active periodontitis, uncontrolled systemic disease).","ALL","15 Years","30 Years",{"count":71,"type":72},40,"ESTIMATED","INTERVENTIONAL",[75],"NA","This randomized clinical trial will compare the effectiveness of a gold-plated multistranded mandibular fixed retainer versus a conventional multistranded stainless-steel fixed retainer in maintaining lower anterior tooth alignment after completion of orthodontic treatment. Eligible participants (post-orthodontic patients requiring mandibular fixed retention) will be allocated in a 1:1 ratio to receive either a gold-plated 0.0195-inch multistranded retainer or an identical-gauge 0.0195-inch stainless-steel multistranded retainer. Participants will be followed for 6 months.\n\nThe primary outcome is post-treatment stability of mandibular anterior alignment, assessed by changes in Little's Irregularity Index over time, along with retainer failure outcomes (e.g., time to first failure and tooth-level failure events). Secondary outcomes include periodontal health indices and related clinical measures collected at baseline and follow-up visits.\n\nFor the microbiological assessment, plaque\u002Fbiofilm will be collected from the retainer using sterile swabs at 1 month, 3 months, and 6 months to evaluate bacterial levels associated with each retainer material.",[78,79],"Orthodontic Retention Appliance","Orthodontic Relapse",[81,82,83,84,85,86],"fixed retainer","gold-coated retainer wire","stainless steel retainer wire","Little's Irregularity Index","retainer failure","periodontal indices","2025-12-11",{"date":89,"type":90},"2025-12-12","ACTUAL",{"date":92,"type":90},"2025-11-01",{"date":94,"type":72},"2026-12",{"name":58,"class":6},1]