[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100633129":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":26,"centralContacts":27,"locations":33,"responsibleParty":50,"collaborators":26,"id":54,"slug":55,"hasResults":56,"nctId":57,"briefTitle":58,"officialTitle":59,"acronym":26,"eligibilityCriteria":60,"healthyVolunteers":56,"sex":61,"minAge":62,"maxAge":63,"enrollmentInfo":64,"targetDuration":26,"studyType":67,"phases":68,"briefSummary":70,"conditions":71,"keywords":26,"overallStatus":36,"whyStopped":26,"lastUpdateSubmitDate":73,"lastUpdatePostDateStruct":74,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":82},{"fullName":5,"class":6},"Menoufia University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"3D-Printed Resin Restoration","EXPERIMENTAL","Participants will receive implant-supported single crowns or short-span fixed partial dentures fabricated using 3D-printed permanent resin (CROWNTEC). Restorations are produced via a fully digital workflow, including intraoral scanning, CAD design, 3D printing, post-processing, and finishing, and delivered as screw- or cement-retained prostheses.",[13],"Device: 3D-Printed Resin Restoration (CROWNTEC)",{"label":15,"type":16,"description":17,"interventionNames":18},"Milled Zirconia Restorations","ACTIVE_COMPARATOR","Participants will receive implant-supported single crowns or short-span fixed partial dentures fabricated from monolithic zirconia using CAD-CAM milling. Restorations undergo sintering, finishing, and polishing, and are delivered as screw- or cement-retained prostheses.",[13],[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"DEVICE","3D-Printed Resin Restoration (CROWNTEC)","Implant-supported single crowns or short-span fixed partial dentures fabricated using 3D-printed permanent resin (CROWNTEC). Restorations are produced using a standardized digital workflow, including intraoral scanning, CAD design, 3D printing at 50 µm layer thickness, post-processing (isopropyl alcohol cleaning, post-curing), finishing, and polishing. Restorations are delivered as screw- or cement-retained prostheses. In addition, Other participants will receive implant-supported single crowns or short-span fixed partial dentures fabricated from monolithic zirconia using CAD-CAM milling. Restorations undergo sintering, finishing, and polishing, and are delive",[9,15],[15],null,[28],{"name":29,"role":30,"phone":31,"phoneExt":26,"email":32},"Mohammed A. Elsawy, PhD","CONTACT","00201061314522","mohamed.elsawy@dent.menofia.edu.eg",[34],{"facility":35,"status":36,"city":37,"state":26,"zip":38,"country":39,"countryCode":40,"cosmosGeoPoint":41,"geoPoint":46,"contacts":47},"Mohammed Elsawy","RECRUITING","Shibīn al Kawm","2266166","Egypt","EG",{"type":42,"coordinates":43},"Point",[44,45],31.00904,30.55258,{"lat":45,"lon":44},[48],{"name":49,"role":30,"phone":31,"phoneExt":26,"email":32},"Mohammed Elsawy, PhD",{"type":51,"investigatorFullName":52,"investigatorTitle":53,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"PRINCIPAL_INVESTIGATOR","Mohammed El-Sawy","Clinical Professor and principle investigator","100633129","clinical-performance-of-3d-printed-resin-and-zirconia-implant-restorations-100633129",false,"NCT07522671","Clinical Performance of 3D-Printed Resin and Zirconia Implant Restorations","Clinical Performance of 3D-Printed Resin Versus Milled Monolithic Zirconia in Implant-Supported Single Crowns and Short-Span Fixed Partial Dentures: A Randomized Controlled Clinical Trial","Inclusion Criteria:\n\n* Participants must meet all of the following:\n* Age ≥18 years.\n* Have one or two osseointegrated dental implants requiring prosthetic restoration.\n* Demonstrate stable peri-implant tissues with no signs of inflammation or implant mobility.\n* Maintain good oral hygiene and controlled periodontal status.\n* Require either:\n* A single implant-supported crown, or\n* A short-span (maximum 3-unit) implant-supported fixed partial denture (FPD) supported by two implants in the mandibular anterior region.\n\nExclusion Criteria:\n\n* Participants are excluded if they have any of the following:\n* Severe parafunctional habits (e.g., bruxism).\n* Uncontrolled systemic diseases affecting bone metabolism or healing.\n* Peri-implantitis or compromised implant stability.\n* Requirement for cantilever prostheses or long-span restorations, or FPDs in areas other than the mandibular anterior region.","ALL","18 Years","60 Years",{"count":65,"type":66},60,"ESTIMATED","INTERVENTIONAL",[69],"NA","This randomized controlled clinical trial evaluates the clinical performance of 3D-printed resin restorations compared with milled monolithic zirconia in implant-supported single crowns and short-span fixed partial dentures (FPDs). A total of patients requiring one or two implant-supported restorations in the mandibular anterior region were randomly allocated to receive either 3D-printed permanent resin restorations (CROWNTEC) or conventionally milled zirconia prostheses.\n\nAll restorations were fabricated using a standardized digital workflow and assessed over a 12-month follow-up period. The primary outcome was restoration survival rate, while secondary outcomes included technical complications, peri-implant biological parameters, marginal bone level changes, and patient-reported satisfaction.\n\nThis study aims to provide clinical evidence regarding the viability of 3D-printed definitive resin materials as an alternative to zirconia in implant prosthodontics.",[72],"Prosthesis User","2026-04-08",{"date":75,"type":76},"2026-04-13","ACTUAL",{"date":78,"type":66},"2026-04-01",{"date":80,"type":66},"2028-11-01",{"name":5,"class":6},1]