[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100567852":3},{"organization":4,"armGroups":7,"interventions":15,"overallOfficials":11,"centralContacts":25,"locations":31,"responsibleParty":50,"collaborators":54,"id":56,"slug":57,"hasResults":58,"nctId":59,"briefTitle":60,"officialTitle":60,"acronym":11,"eligibilityCriteria":61,"healthyVolunteers":62,"sex":63,"minAge":64,"maxAge":11,"enrollmentInfo":65,"targetDuration":11,"studyType":68,"phases":69,"briefSummary":71,"conditions":72,"keywords":11,"overallStatus":34,"whyStopped":11,"lastUpdateSubmitDate":75,"lastUpdatePostDateStruct":76,"startDateStruct":79,"completionDateStruct":81,"leadSponsor":83,"locationsCount":84},{"fullName":5,"class":6},"British University In Egypt","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Patients assigned for esthetic crown leghthening","EXPERIMENTAL",null,[13,14],"Diagnostic Test: Complete crown technique for superimposition","Diagnostic Test: Gold standard technique for superimposition",[16,21],{"type":17,"name":18,"description":19,"armGroupLabels":20,"otherNames":11},"DIAGNOSTIC_TEST","Complete crown technique for superimposition","the complete crown technique, the crown of the tooth corresponding to the gingival margin under evaluation will be selected using the paint method and circular selection tool. The same selection process will be applied to the moving model.",[9],{"type":17,"name":22,"description":23,"armGroupLabels":24,"otherNames":11},"Gold standard technique for superimposition","the gold standard technique, adjacent intact teeth and a portion of the palatal gingiva will be selected. Superimpositions will be executed utilizing the software's iterative closest point algorithm (ICP).",[9],[26],{"name":27,"role":28,"phone":29,"phoneExt":11,"email":30},"Ahmed Mohamed Hassan, Master Degree of Periodontolog","CONTACT","+201060683334","ahmed.hasan@bue.edu.eg",[32],{"facility":33,"status":34,"city":35,"state":11,"zip":36,"country":37,"countryCode":38,"cosmosGeoPoint":39,"geoPoint":44,"contacts":45},"Cairo University","RECRUITING","Cairo","11230","Egypt","EG",{"type":40,"coordinates":41},"Point",[42,43],31.24967,30.06263,{"lat":43,"lon":42},[46],{"name":47,"role":28,"phone":48,"phoneExt":11,"email":49},"Samah Bahaa, Lecturer","+20 100 680 6808","samah.bahaa@dentistry.cu.edu.eg",{"type":51,"investigatorFullName":52,"investigatorTitle":53,"investigatorAffiliation":33,"oldNameTitle":11,"oldOrganization":11},"PRINCIPAL_INVESTIGATOR","Ahmed Mohamed Hassan","Assistant Lecturer",[55],{"name":33,"class":6},"100567852","assessment-of-the-accuracy-of-complete-crown-3d-superimposition-technique-relative-to-the-gold-standard-technique-for-digital-quantification-of-volumetric-soft-tissue-changes-in-the-esthetic-zone-100567852",false,"NCT06673576","Assessment of The Accuracy of Complete Crown 3D Superimposition Technique Relative to The Gold Standard Technique for Digital Quantification of Volumetric Soft Tissue Changes in The Esthetic Zone","Inclusion Criteria:\n\n1. Patients requiring esthetic crown lengthening.\n2. Full-mouth plaque and bleeding score not exceeding 20%.\n3. Presence of at least 2.5 mm keratinized tissue width (Pontoriero \\& Carnevale, 2001).\n4. Patients showing motivation to comply with post-operative care instructions and follow-up appointments.\n\nExclusion Criteria:\n\n* 1\\. Systemic health conditions that contraindicate or affect healing of periodontal surgery.\n\n  2\\. Patients requiring prosthetic crowns or restorations in the esthetic zone. 3. Gummy smile with normal tooth proportions. 4. Patients treated with medications known to affect the gingiva (Phenytoin, Cyclosporine and Nifedipine).\n\n  5\\. Smokers. 6. Pregnant and nursing females.",true,"ALL","18 Years",{"count":66,"type":67},12,"ESTIMATED","INTERVENTIONAL",[70],"NA","The aim of this study is to assess the precision of the complete crown technique employed for the superimposition of 3D models, specifically in the quantitative volumetric evaluation of gingival tissues. This technique was initially introduced in an in-vitro study by Dritsas et al. (2023) as a means to achieve an accurate, reproducible, and simple method for quantification of gingival recession.\n\nThis study will involve the analysis of digital models in. ply format acquired through intraoral scanning of patients scheduled for esthetic crown lengthening, with predefined inclusion and exclusion",[73,74],"Volume Assessment","Gummy Smile","2024-11-02",{"date":77,"type":78},"2024-11-05","ACTUAL",{"date":80,"type":78},"2024-03-15",{"date":82,"type":67},"2025-05-15",{"name":5,"class":6},1]