[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100649886":3},{"organization":4,"armGroups":7,"interventions":24,"overallOfficials":39,"centralContacts":44,"locations":49,"responsibleParty":69,"collaborators":30,"id":71,"slug":72,"hasResults":73,"nctId":74,"briefTitle":75,"officialTitle":76,"acronym":30,"eligibilityCriteria":77,"healthyVolunteers":78,"sex":79,"minAge":80,"maxAge":81,"enrollmentInfo":82,"targetDuration":30,"studyType":85,"phases":86,"briefSummary":88,"conditions":89,"keywords":94,"overallStatus":52,"whyStopped":30,"lastUpdateSubmitDate":103,"lastUpdatePostDateStruct":104,"startDateStruct":107,"completionDateStruct":109,"leadSponsor":111,"locationsCount":112},{"fullName":5,"class":6},"Tanta University","OTHER",[8,14,19],{"label":9,"type":10,"description":11,"interventionNames":12},"Splinted Scan Bodies with composite","EXPERIMENTAL","Participants will undergo full-arch digital implant scanning using implant scan bodies splinted with composite resin. The splinting procedure is intended to improve the stability of scan bodies and reduce positional discrepancies during digital impression acquisition.",[13],"Device: Splinted Scan Body with composite",{"label":15,"type":10,"description":16,"interventionNames":17},"horizontal non-calibrated scan bodies","Participants will undergo full-arch digital implant scanning using horizontal non-calibrated scan bodies (IO Connect). This technique utilizes a horizontal scan body design to facilitate implant position recognition, digital alignment, and complete-arch digital impression acquisition.",[18],"Device: IO Connect Scanning Technique",{"label":20,"type":10,"description":21,"interventionNames":22},"Auxiliary Geometric Device Scanning","Participants will undergo full-arch digital implant scanning using 3D-printed auxiliary geometric devices attached to implant scan bodies. The auxiliary devices provide additional geometric reference landmarks intended to improve scanning accuracy and reduce stitching errors during complete-arch digital impressions.",[23],"Device: Auxiliary Geometric Device Scanning Technique",[25,31,35],{"type":26,"name":27,"description":28,"armGroupLabels":29,"otherNames":30},"DEVICE","Splinted Scan Body with composite","A full-arch digital implant impression will be obtained using implant scan bodies splinted with composite resin prior to scanning. The splinting procedure will provide enhanced scan body stability and will be used to minimize positional discrepancies during digital impression acquisition.",[9],null,{"type":26,"name":32,"description":33,"armGroupLabels":34,"otherNames":30},"IO Connect Scanning Technique","A full-arch digital implant impression will be obtained using horizontal non-calibrated scan bodies (IO Connect). The horizontal scan body design will facilitate implant position recognition, digital alignment, and accurate transfer of implant coordinates throughout the digital impression procedure.",[15],{"type":26,"name":36,"description":37,"armGroupLabels":38,"otherNames":30},"Auxiliary Geometric Device Scanning Technique","A full-arch digital implant impression will be obtained using 3D-printed auxiliary geometric devices attached to implant scan bodies. These auxiliary devices will provide additional geometric reference landmarks to improve stitching accuracy, reduce cumulative scanning errors, and enhance complete-arch digital impression accuracy.",[20],[40],{"name":41,"affiliation":42,"role":43},"Mostafa Hamed Mostafa Abd El-Hameed Abd El-Hameed, BDS, MSc","Faculty of Dentistry, Tanta University, Egypt","PRINCIPAL_INVESTIGATOR",[45],{"name":41,"role":46,"phone":47,"phoneExt":30,"email":48},"CONTACT","+201090461713","mostafa_hamed@dent.tanta.edu.eg",[50],{"facility":51,"status":52,"city":53,"state":54,"zip":55,"country":56,"countryCode":57,"cosmosGeoPoint":58,"geoPoint":63,"contacts":64},"Faculty of Dentistry, Tanta University","RECRUITING","Tanta","Gharbia Governorate","31527","Egypt","EG",{"type":59,"coordinates":60},"Point",[61,62],31.00192,30.78847,{"lat":62,"lon":61},[65,67],{"name":66,"role":46,"phone":47,"phoneExt":30,"email":48},"Mostafa Hamed Mostafa Abd El-Hameed",{"name":68,"role":43,"phone":30,"phoneExt":30,"email":30},"Mostafa Hamed Mostafa Abd El-Hameed, BDS, MSc",{"type":43,"investigatorFullName":66,"investigatorTitle":70,"investigatorAffiliation":5,"oldNameTitle":30,"oldOrganization":30},"Assistant Lecturer","100649886","effect-of-scanning-techniques-on-accuracy-of-mandibular-fixed-detachable-prostheses-100649886",false,"NCT07740265","Effect of Scanning Techniques on Accuracy of Mandibular Fixed Detachable Prostheses","Influence of Three Different Scanning Techniques on Scanning Accuracy for Mandibular Fixed Detachable Prosthesis (A Cross Over Study).","Inclusion Criteria:\n\n1. Completely edentulous patients with age between 40-60 years.\n2. Adequate bone height to fulfill the criteria for implant placement.\n3. Patients should have a class I Angle's classification.\n\nExclusion Criteria:\n\n1-. Insufficient vertical inter-arch space to accommodate the restorative components.\n\n2\\. Presence of psychiatric or neurological conditions. 3. Any systemic diseases that may affect implant bone osteointegration.",true,"ALL","40 Years","60 Years",{"count":83,"type":84},7,"ESTIMATED","INTERVENTIONAL",[87],"NA","This crossover clinical study aims to evaluate the influence of three different intraoral scanning techniques on the scanning accuracy and passive fit of mandibular implant-supported fixed detachable prostheses in completely edentulous patients. Each participant will undergo digital implant scanning using three methods: splinted scan bodies, horizontal non-calibrated scan bodies (IO Connect), and auxiliary geometric devices.",[90,91,92,93],"Dental Prosthesis, Implant-Supported","Prosthodontics","Complete Edentulism","Full Arch Implant Rehabilitation",[95,96,97,98,99,100,101,102],"Intraoral Scanner","Digital impression","Passive fit","Auxiliary Geometric Device","Fixed Detachable Prosthesis","Implant Scan Body","Full-arch implant","horizontal scan body","2026-07-28",{"date":105,"type":106},"2026-07-31","ACTUAL",{"date":108,"type":84},"2026-08-08",{"date":110,"type":84},"2027-07-01",{"name":5,"class":6},1]