[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100597047":3},{"organization":4,"armGroups":7,"interventions":25,"overallOfficials":40,"centralContacts":45,"locations":52,"responsibleParty":68,"collaborators":31,"id":72,"slug":73,"hasResults":74,"nctId":75,"briefTitle":76,"officialTitle":76,"acronym":31,"eligibilityCriteria":77,"healthyVolunteers":78,"sex":79,"minAge":80,"maxAge":31,"enrollmentInfo":81,"targetDuration":31,"studyType":84,"phases":85,"briefSummary":87,"conditions":88,"keywords":91,"overallStatus":95,"whyStopped":31,"lastUpdateSubmitDate":96,"lastUpdatePostDateStruct":97,"startDateStruct":100,"completionDateStruct":102,"leadSponsor":104,"locationsCount":105},{"fullName":5,"class":6},"Al-Azhar University","OTHER",[8,14,20],{"label":9,"type":10,"description":11,"interventionNames":12},"T1 - 3D-Printed Retainers","EXPERIMENTAL","Participants in this group will receive retainers fabricated using direct 3D printing technology with bio-compatible clear resin.",[13],"Device: Direct 3D-Printed Retainer",{"label":15,"type":16,"description":17,"interventionNames":18},"T2 - Single-Layer Thermoformed Retainers","ACTIVE_COMPARATOR","Retainers fabricated using thermoplastic sheets and a standard thermoforming machine.",[19],"Device: Single-Layer Thermoformed Retainer",{"label":21,"type":16,"description":22,"interventionNames":23},"T3 - Multi-Layer Thermoformed Retainers","Participants in this group will receive retainers fabricated using a multi-layer thermoforming method",[24],"Device: Multi-Layer Thermoformed Retainer",[26,32,36],{"type":27,"name":28,"description":29,"armGroupLabels":30,"otherNames":31},"DEVICE","Direct 3D-Printed Retainer","Orthodontic retainers fabricated using direct 3D printing technology from digital STL models. The retainers are printed with biocompatible clear resin using an additive manufacturing process.",[9],null,{"type":27,"name":33,"description":34,"armGroupLabels":35,"otherNames":31},"Single-Layer Thermoformed Retainer","Clear orthodontic retainers fabricated by thermoforming a single-layer thermoplastic sheet over a 3D printed dental model using a vacuum forming machine.",[15],{"type":27,"name":37,"description":38,"armGroupLabels":39,"otherNames":31},"Multi-Layer Thermoformed Retainer","Orthodontic retainers fabricated using a multi-layer thermoforming technique combining different thermoplastic materials to enhance durability and fit accuracy.",[21],[41],{"name":42,"affiliation":43,"role":44},"Mostafa M. Dawaba, PhD","Faculty of Dental Medicine, Al-Azhar University - Assiut Branch","PRINCIPAL_INVESTIGATOR",[46],{"name":47,"role":48,"phone":49,"phoneExt":50,"email":51},"Essraa H. Mohammed","CONTACT","00201159327869","002","Essraa_elaraby88@yahoo.com",[53],{"facility":43,"status":31,"city":54,"state":55,"zip":56,"country":57,"countryCode":58,"cosmosGeoPoint":59,"geoPoint":64,"contacts":65},"Asyut","Assuit","71511","Egypt","EG",{"type":60,"coordinates":61},"Point",[62,63],31.18368,27.18096,{"lat":63,"lon":62},[66],{"name":67,"role":48,"phone":49,"phoneExt":31,"email":51},"Essraa H. Mohamed, BDS",{"type":69,"investigatorFullName":70,"investigatorTitle":71,"investigatorAffiliation":5,"oldNameTitle":31,"oldOrganization":31},"SPONSOR_INVESTIGATOR","Essraa hassan Hussein Mohamed","Master's Degree Candidate in Orthodontics","100597047","comparison-of-dimensional-accuracy-and-color-stability-between-direct-3d-printed-and-thermoformed-retainers-100597047",false,"NCT07053410","Comparison of Dimensional Accuracy and Color Stability Between Direct 3D-printed and Thermoformed Retainers","Inclusion Criteria:\n\n* Patients who have completed their active orthodontic treatment.\n* Adults aged 18 years and above.\n* Cooperative individuals willing to participate.\n* Patients with good oral hygiene and general health.\n* No systemic diseases that may affect treatment outcomes.\n\nExclusion Criteria:\n\n* Smokers.\n* Patients with a history of poor compliance with previous orthodontic treatment.\n* Patients with parafunctional oral habits (e.g., bruxism).\n* Patients undergoing retreatment due to relapse.",true,"ALL","18 Years",{"count":82,"type":83},30,"ESTIMATED","INTERVENTIONAL",[86],"NA","This study aims to compare two types of orthodontic retainers used after active treatment to maintain teeth position. The retainers are fabricated using either direct 3D-printing or thermoforming methods. The study will evaluate which method provides better dimensional accuracy (fit) and color stability over time. Adult patients who have completed their orthodontic treatment will be randomly assigned to one of three groups, each receiving a different type of retainer. The research is conducted at the Faculty of Dental Medicine, Al-Azhar University - Assiut Branch. The goal is to help orthodontists select the most reliable and durable type of retainer for long-term use.",[89,90],"Orthodontic Retention Appliance","Clear Orthodontic Retainers",[92,93,94],"Direct 3D-printed retainers","Multilayer retainer","Singlelayer retainer","NOT_YET_RECRUITING","2025-07-10",{"date":98,"type":99},"2025-07-11","ACTUAL",{"date":101,"type":83},"2025-07",{"date":103,"type":83},"2028-12",{"name":70,"class":6},1]