[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100569228":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":30,"locations":26,"responsibleParty":36,"collaborators":26,"id":40,"slug":41,"hasResults":42,"nctId":43,"briefTitle":44,"officialTitle":44,"acronym":26,"eligibilityCriteria":45,"healthyVolunteers":42,"sex":46,"minAge":47,"maxAge":48,"enrollmentInfo":49,"targetDuration":26,"studyType":52,"phases":53,"briefSummary":55,"conditions":56,"keywords":58,"overallStatus":60,"whyStopped":26,"lastUpdateSubmitDate":61,"lastUpdatePostDateStruct":62,"startDateStruct":65,"completionDateStruct":67,"leadSponsor":69,"locationsCount":26},{"fullName":5,"class":6},"Cairo University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"computer guide cortical shell technique in anterior mandible 3d defect","EXPERIMENTAL","in study group there are bone harvesting guide and two fixation guides",[13],"Procedure: horizontal and vertical bone augmentation using computer guided cortical shell technique",{"label":15,"type":16,"description":17,"interventionNames":18},"free hand cortical shell technique in anterior 3d defect","ACTIVE_COMPARATOR","in control group, the bone harvesting and shells fixation will done with free hand technique",[19],"Procedure: free hand cortical shell technique in anterior 3d defect",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"PROCEDURE","horizontal and vertical bone augmentation using computer guided cortical shell technique","Computer-guided cortical shell technique in anterior mandible 3d defect using bone harvesting guide and fixation guides",[9],null,{"type":22,"name":15,"description":28,"armGroupLabels":29,"otherNames":26},"vertical and horizontal ridge augmentation in anterior mandible using free hand cortical shell technique",[15],[31],{"name":32,"role":33,"phone":34,"phoneExt":26,"email":35},"Ahmed Salah Ahmed Salah Sayed","CONTACT","+20 010207395","ahmed.ibrahem@dentistry.cu.edu.eg",{"type":37,"investigatorFullName":38,"investigatorTitle":39,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"PRINCIPAL_INVESTIGATOR","Ahmed Salah Sayed Ibrahim Elballal","Dr.Ahmed Salah","100569228","radiographic-assessment-of-the-accuracy-of-3d-ridge-augmentation-in-anterior-mandible-using-computer-guided-autogenous-cortical-shell-technique-versus-free-hand-technique-100569228",false,"NCT06691516","Radiographic Assessment Of The Accuracy Of 3D Ridge Augmentation In Anterior Mandible Using Computer Guided Autogenous Cortical Shell Technique Versus Free Hand Technique","Inclusion Criteria:\n\n* Age ranges from 20-60 years. No sex predilection.\n\nPatients free from any systemic conditions and bone metabolism diseases that might interfere with the surgical intervention, soft tissue or hard tissue healing.\n\nEdentulous anterior mandible with a horizontally deficient alveolar ridge that is less than 3mm in width and with a vertically defect at least 3mm in height.\n\nThe minimum number of missing teeth in the anterior mandible alveolar ridge is two adjacent teeth.\n\nExclusion Criteria:\n\n* Intra-bony lesions (e.g., cysts) or infections (e.g., abscess) that may retard the osteotomy healing.\n\nPrevious grafting procedures in the edentulous area","ALL","20 Years","60 Years",{"count":50,"type":51},22,"ESTIMATED","INTERVENTIONAL",[54],"NA","\\* this study aims to evaluate accuracy of fixation of the bone shells by a calculated distance which is always a challenging step for inexperienced surgeons to fix a cortical shells at the ideal position in the conventional protocol.\n\nthe fixation guides used to make the shells precisely fixed at the proper position and angulation the problem is if it fixed with insufficient distance with proposed volume loss leads to totally insufficient volume gain for future implant placement\n\n* also to evaluate the efficacy of the CAD\u002FCAM surgical guide during chin harvesting (harvesting guide ) procedure in reducing the risk of anatomical structure damage (mental neve) and patient morbidity with more accuracy compared with the standard technique and preserve the roots of the lower anterior teeth or any fracture to the inferior border of the mandible also allow to harvest the bone shells from the suitable area with cancellous bone which prevent bad split of the bone shells this trial versus free hand conventional cortical shell bone technique both harvested from symphysis area (chin),\n* also to evaluate thickness of implanted bone shells , the thickness should be enough to preserve the graft(autograft 50% and xenograft 50%) between the buccal and lingual bone shells\n* also aims to evaluate the vertical and horizontal bone augmentation achieved at the anterior mandible using computer-guided cortical shell bone technique.",[57],"Bone Loss",[59],"cortical shell , bone loss , computer guided","NOT_YET_RECRUITING","2024-11-14",{"date":63,"type":64},"2024-11-15","ACTUAL",{"date":66,"type":51},"2024-11-21",{"date":68,"type":51},"2026-03-01",{"name":5,"class":6}]