[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100642732":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":31,"centralContacts":35,"locations":41,"responsibleParty":59,"collaborators":61,"id":64,"slug":65,"hasResults":66,"nctId":67,"briefTitle":68,"officialTitle":69,"acronym":10,"eligibilityCriteria":70,"healthyVolunteers":66,"sex":71,"minAge":72,"maxAge":73,"enrollmentInfo":74,"targetDuration":10,"studyType":77,"phases":10,"briefSummary":78,"conditions":79,"keywords":10,"overallStatus":44,"whyStopped":10,"lastUpdateSubmitDate":81,"lastUpdatePostDateStruct":82,"startDateStruct":85,"completionDateStruct":87,"leadSponsor":89,"locationsCount":90},{"fullName":5,"class":6},"Menoufia University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Intraoral Photogrammetry (IPG)",null,"Participants will undergo complete-arch implant scanning using an intraoral photogrammetry system (IPF Elite, Shining 3D). Implant positions will be digitally recorded according to the manufacturer's instructions. Linear and angular discrepancies relative to the reference dataset, as well as chairside scanning time, will be evaluated.",[13],"Device: Intraoral Photogrammetry (IPG)",{"label":15,"type":10,"description":16,"interventionNames":17},"Mobile-Phone-Based Photogrammetry","Participants will undergo complete-arch implant scanning using a mobile-phone-based photogrammetry system (T-Marker). Implant positions will be digitally recorded according to the manufacturer's instructions. Linear and angular discrepancies relative to the reference dataset, as well as chairside scanning time, will be evaluated.",[18],"Device: Mobile-Phone-Based Photogrammetry",[20,26],{"type":21,"name":9,"description":22,"armGroupLabels":23,"otherNames":24},"DEVICE","A photogrammetry-based digital impression system used to capture the three-dimensional positions of implants in complete-arch rehabilitations. The system records implant locations through specialized scan bodies and generates a digital dataset for subsequent accuracy analysis.",[9],[25],"IPF Elite; Shining 3D; Intraoral Photogrammetry System",{"type":21,"name":15,"description":27,"armGroupLabels":28,"otherNames":29},"A smartphone-assisted photogrammetry system used to capture the three-dimensional positions of implants in complete-arch rehabilitations. The system acquires photographic data through coded markers and generates a digital dataset for subsequent accuracy analysis.",[15],[30],"T-Marker; Extraoral Photogrammetry; Mobile-Phone-Based Photogrammetry System",[32],{"name":33,"affiliation":5,"role":34},"Mohammed A. El-Sawy, PhD","PRINCIPAL_INVESTIGATOR",[36],{"name":37,"role":38,"phone":39,"phoneExt":10,"email":40},"Mohammed El-Sawy, PhD","CONTACT","00201061314522","mohamed.elsawy@dent.menofia.edu.eg",[42],{"facility":43,"status":44,"city":45,"state":46,"zip":47,"country":48,"countryCode":49,"cosmosGeoPoint":50,"geoPoint":55,"contacts":56},"Mohammed El-Sawy","RECRUITING","Shibīn al Kawm","Menoufia","2266166","Egypt","EG",{"type":51,"coordinates":52},"Point",[53,54],31.00904,30.55258,{"lat":54,"lon":53},[57],{"name":58,"role":38,"phone":10,"phoneExt":10,"email":40},"Mohammed Elsawy",{"type":34,"investigatorFullName":43,"investigatorTitle":60,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Dr",[62],{"name":63,"class":6},"Mansoura University","100642732","accuracy-of-complete-arch-implant-photogrammetry-100642732",false,"NCT07643441","Accuracy of Complete-Arch Implant Photogrammetry","Accuracy of Complete-arch Implant Scans Obtained Using Intraoral Photogrammetry and a Mobile-phone Based Photogrammetry.","Inclusion Criteria:\n\n* Adults aged 18 years or older.\n* Completely edentulous patients rehabilitated with implant-supported complete-arch prostheses.\n* Presence of at least four osseointegrated implants in the edentulous arch.\n* Patients able to undergo digital implant scanning procedures.\n* Patients willing to participate and provide written informed consent.\n\nExclusion Criteria:\n\n* Patients with unstable or failed implants.\n* Presence of peri-implant disease, active oral infection, or significant soft-tissue inflammation around the implants.\n* Inadequate access for placement of photogrammetry scan bodies or markers.\n* Patients with conditions that prevent proper scanning procedures (e.g., inability to maintain mouth opening or remain still during data acquisition).\n* Patients requiring immediate implant placement or immediate loading protocols.\n* Patients unwilling or unable to provide informed consent.\n* Incomplete clinical records or inability to complete all study procedures.","ALL","18 Years","50 Years",{"count":75,"type":76},42,"ESTIMATED","OBSERVATIONAL","This prospective comparative clinical study evaluated the accuracy and chairside time of complete-arch implant scans obtained using an intraoral photogrammetry system and a mobile-phone-based photogrammetry system in edentulous patients rehabilitated with complete-arch implant-supported prostheses. Implant positions recorded by each system were compared with a reference dataset to assess linear and angular discrepancies. The chairside time required for data acquisition was also measured. The study aimed to determine whether mobile-phone-based photogrammetry can provide clinically acceptable accuracy comparable to that of intraoral photogrammetry while improving clinical efficiency. The findings may help clinicians select appropriate digital impression techniques for complete-arch implant rehabilitation.",[80],"Edentulous Jaw","2026-06-07",{"date":83,"type":84},"2026-06-11","ACTUAL",{"date":86,"type":84},"2026-01-01",{"date":88,"type":76},"2026-08-01",{"name":5,"class":6},1]